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Observing >> Variable Star Observing and Radio Astronomy

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Hubert
sage


Reged: 09/26/06

Loc: Belgium
New nova in delphinus
      #6025615 - 08/14/13 05:21 PM

There's a new nova in Delphinus

http://www.cbat.eps.harvard.edu/unconf/followups/J20233073+2046041.html

Just visualy observed it and estimated it 6.5. AAVSO chart 12506UL

Compstars 62 and 70.

Easy visible in 8x42 bino.


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ZielkeNightsky
Pooh-Bah
*****

Reged: 10/01/06

Loc: Denmark
Re: New nova in delphinus new [Re: Hubert]
      #6025621 - 08/14/13 05:24 PM

Just observed it, my guees is around 6.2 . 8x50 bino

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John Gauvreau
Astro Sensei


Reged: 10/19/07

Loc: Dundas, Ontario, Canada
Re: New nova in delphinus new [Re: ZielkeNightsky]
      #6026066 - 08/14/13 09:55 PM

Just observed with 8x42 Atlas Radian bonoculars and Oberwerk 15x70 at 9:55pmEDT, and I would estimate maybe 5.7-5.8
Very nice and easy to find.

Edited by John Gauvreau (08/14/13 10:04 PM)


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Aaron Turner
sage


Reged: 03/18/08

Loc: Southbury, CT
Re: New nova in delphinus new [Re: John Gauvreau]
      #6026105 - 08/14/13 10:19 PM

10:20 EDT. 20x80 binoculars. Bit shaky (too much yard work today) without the tripod. I'd estimate between 6.2 and 5.7 based on nearby known stars.

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PGW Steve
Pooh-Bah


Reged: 10/03/06

Loc: Winnipeg, Canada
Re: New nova in delphinus new [Re: Aaron Turner]
      #6026325 - 08/15/13 12:45 AM

Strange.....I just went to the RA/DEC on the CBAT site, plate solved it to within seconds, and shot an exposure, there is nothing showing in the field of the reported magnitude....I must find this thing!!!

GOT IT!!!!! Topocentric vs J2000 issue.

Edited by PGW Steve (08/15/13 01:03 AM)


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Achernar
Postmaster
*****

Reged: 02/25/06

Loc: Mobile, Alabama, USA
Re: New nova in delphinus new [Re: Hubert]
      #6026417 - 08/15/13 02:18 AM

I think it's possibly brigther than magnitude +5.7, given that I quite probably saw it with the unaided eye between passing bnads of clouds just now. I was looking from my driveway in Mobile, which is heavily light polluted.

Taras


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Joe F Gafford
Carpal Tunnel


Reged: 12/15/06

Loc: Denver, Colorado, US
Re: New nova in delphinus new [Re: Achernar]
      #6026439 - 08/15/13 03:07 AM Attachment (43 downloads)

I agree it is closer to mag 5.7. It seems to match nearby Hip 100754 at mag 5.8 with 7x50 binos. An image of the area with annotations taken 11-3-1996 with the Mamiya RZ camera with the 110mm F/2.8 lens wide open for 22 minutes on the Kodak PPF 400 film. Small area of the negative taken in the Delphinus area. 5 deg horizontal, north up.

Joe


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Hubert
sage


Reged: 09/26/06

Loc: Belgium
Re: New nova in delphinus new [Re: Joe F Gafford]
      #6026467 - 08/15/13 04:14 AM

My observation at the beginning of the evening was 6.5 but it clearly was getting brighter by the hour. The latest observations are around 5.5

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Rich (RLTYS)Moderator
Post Laureate
*****

Reged: 12/18/04

Loc: New York (Long Island)
Re: New nova in delphinus new [Re: Hubert]
      #6026534 - 08/15/13 06:00 AM

Unfortunetly I just found out about it this morning (8/15). Hope to observe it tonight.

Rich (RLTYS)


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RobK
sage


Reged: 07/06/08

Loc: Bright, Vic, Australia
Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6026570 - 08/15/13 06:52 AM

CBET has now been issued - CBET 3628 : 20130815 : NOVA DELPHINI 2013 = PNV J20233073+2046041. Cloudy here...

Cheers -

Rob


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John Gauvreau
Astro Sensei


Reged: 10/19/07

Loc: Dundas, Ontario, Canada
Re: New nova in delphinus new [Re: RobK]
      #6026639 - 08/15/13 08:17 AM

Yeah, I looked again before I went to bed last night, a little over 2 hours after my first observation and I estimated it at 5.6-5.7 (12:15amEDT) so I would agree with Hubert that it is getting brighter. I'm looking forward to seeing it tonight!

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BrooksObs
professor emeritus


Reged: 12/08/12

Re: New nova in delphinus new [Re: John Gauvreau]
      #6026922 - 08/15/13 11:10 AM

Available data from this morning indicates that the nova is currently probably peaking in brightness at magnitude 5.5-5.6 . This suggests that it should still be around this range tonight when darkness returns to the Americas.

I would note that it is a rare thing to actually view a nova when precisely at maximum, most of them being discovered some days (sometimes weeks) after they have peaked and they are fading.

It will prove interesting to see just what type of nova this new object will be, fast, normal, or slow. HR Del 1967 was situated about 10 degrees to the SE of the new nova's position. It was a very slow nova, remaining near maximum for a couple of months! However, its rise to maximum was much slower and its amplitude less than seems to be the case with the new object.

BrooksObs

Edited by BrooksObs (08/15/13 11:17 AM)


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elleng
newbie


Reged: 07/23/13

Re: New nova in delphinus new [Re: BrooksObs]
      #6026991 - 08/15/13 11:49 AM

Looking forward to glimpsing this one.

I found a link with a good pdf chart

http://www.freestarcharts.com/index.php/19-news-and-current-events/186-bright...


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jmandell
sage


Reged: 06/15/11

Re: New nova in delphinus new [Re: BrooksObs]
      #6027004 - 08/15/13 11:54 AM

Sweet! I have been thinking about getting into dslr photometry, and I now have a target tonight. It will be my first time doing anything of the sort, so I'll probably mess up, but I have to take the leap some time.

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Herr General
member


Reged: 06/20/13

Loc: Ohio
Re: New nova in delphinus new [Re: jmandell]
      #6027137 - 08/15/13 01:02 PM

I tried finding it with a 12" last night, but I couldn't conclusively identify it (though I'm sure I passed over it a few times). I chalked it up to the 12" "cluttering" the field with a lot of insignificant background stars and my own inexperience with star hopping- since it's apparently brighter tonight, I'll try again with binoculars or my 6" and see if I have better luck.

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PGW Steve
Pooh-Bah


Reged: 10/03/06

Loc: Winnipeg, Canada
Re: New nova in delphinus new [Re: Herr General]
      #6027176 - 08/15/13 01:24 PM Attachment (32 downloads)

I managed to get it with the 14", and my FSQ. A friend of mine was shooting with a 105mm lens on a 60D and it shows up well, we can pick out the small circular asterism right next to it.

17.5'x13.3' FOV


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Dean Norris
Carpal Tunnel
*****

Reged: 11/05/08

Loc: Santa Cruz, Ca
Re: New nova in delphinus new [Re: PGW Steve]
      #6027458 - 08/15/13 03:38 PM

I first found the nova in 7x50 binos ( 8/15/13, 6 UT) and then observed it in my 10" newt. When comparing it to the star Hip 100754 it did seem slightly brighter. Though Hip 100754 is orange in color with the nova being yellow in tone. I'm assuming the orange tone looks less bright than a star that's yellow of the same magnitude. Anyway I would estimate it's brightness as 5.6 approx. Using my 20mm 100* ep 1.3afov, I was able to get both stars in the same fov. Moving the scope enabled me to see NGC 6905 and the nova in same fov. I'll check it out tonight weather permitting. It was great getting the news yesterday and being able to find it last night. This forum is great! Thanks to Hubert for the timely post.

Dean


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BrooksObs
professor emeritus


Reged: 12/08/12

Re: New nova in delphinus new [Re: Dean Norris]
      #6027570 - 08/15/13 04:24 PM

UP DATE - Although Nova Del seemed to have leveled off in brightness at 5.5-5.6 overnight for the western hemisphere, a new group of reported sightings centered around 19h UT today suggests a further rise may be in progress. The mean of these data puts the nova's brightness at closer to 5.0 . Be sure to check the nova this evening as soon as it gets dark.

BrooksObs

Edited by BrooksObs (08/15/13 04:29 PM)


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Bruce MacDonald
Pooh-Bah


Reged: 01/12/06

Loc: Devizes, Wiltshire, UK
Re: New nova in delphinus new [Re: BrooksObs]
      #6027690 - 08/15/13 05:29 PM

Congratulations to Koichi Itagaki, the discoverer. Need to get out and observe it soon.

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Juan J. Gonzalez
member


Reged: 05/18/07

Loc: Spain
Re: New nova in delphinus new [Re: Bruce MacDonald]
      #6027707 - 08/15/13 05:35 PM

My last measure from Spain gives me about 4.8 mag.

PNV J20233073+2046041 20130815.858 4.77R 0.04 4 CMC

-Juanjo


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Hubert
sage


Reged: 09/26/06

Loc: Belgium
Re: New nova in delphinus new [Re: Bruce MacDonald]
      #6027709 - 08/15/13 05:37 PM

Hello, I just observed ( 20.45 UT ) it again and had it visually at 5.1. This is also confirmed by photometry.

That is 1.4 magnitude brighter in 24 hours. Keep on watching it!


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Hubert
sage


Reged: 09/26/06

Loc: Belgium
Re: New nova in delphinus new [Re: Hubert]
      #6027714 - 08/15/13 05:40 PM Attachment (57 downloads)

I have made a AAVSO chart for those who want to use it.

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Bruce MacDonald
Pooh-Bah


Reged: 01/12/06

Loc: Devizes, Wiltshire, UK
Re: New nova in delphinus new [Re: Hubert]
      #6027729 - 08/15/13 05:49 PM

No chance here - clouded out and heavy rain due overnight. Maybe some clear spells tomorrow evening.

Thanks for the chart Hubert - very helpful.


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Keith g
sage


Reged: 02/13/05

Loc: Waterford/Cavan Ireland
Re: New nova in delphinus new [Re: Bruce MacDonald]
      #6027885 - 08/15/13 07:35 PM

Shot taken at 2306UT August 15th, I estimate it now at magnitude 4.8, it's still rising and easy to see naked eye now.

www.flickr.com/photos/79652716@N00/9518001289/lightbox/

Keith.


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Otto Piechowski
Pooh-Bah


Reged: 09/20/05

Loc: Lexington, KY
Re: New nova in delphinus new [Re: Juan J. Gonzalez]
      #6028084 - 08/15/13 09:36 PM

I am at the eyepiece right now. It is brighter than the 4.8 mag in the finder fog and fainter than the 3.5 in the finder fog. I would estimate magnitude 4.5.

Lexington, KY USA 9:36 pm edst


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Gil V
sage


Reged: 09/09/12

Re: New nova in delphinus new [Re: Otto Piechowski]
      #6028112 - 08/15/13 09:55 PM

Nova is noticeably brighter than last evening. I can't estimate magnitude worth a damn, but I can say with certainty that it is much brighter than last evening. Blessed with two more clear nights coming up!!

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SabiaJD
scholastic sledgehammer


Reged: 02/20/05

Loc: Clarks Summit, PA
Re: New nova in delphinus new [Re: Gil V]
      #6028147 - 08/15/13 10:13 PM

First view of Nova Del 2013 tonight, Aug 15, 2013 9:20 pm EDT , August 16, 2013 1:20 UT using 10 x 50 binoculars.

Sky conditions were good, some patches of high altitude clouds around. The 9 day old moon was hidden it trees from my view.

Used stars on AAVSO Chart 12508BUL for magnitude estimate. The Nova was found using charts with a greater FOV, then positive ID using the AAVSO Chart and one from software Guide 8.

Placed Nova DEL 2013 at magnitude 4.7. Without the use of binoculars I could see the Nova and the two 4.8 magnitude stars directly after fully dark adapted. The Nova was brighter than the 4.8 magnitude stars.


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Rich (RLTYS)Moderator
Post Laureate
*****

Reged: 12/18/04

Loc: New York (Long Island)
Re: New nova in delphinus new [Re: SabiaJD]
      #6028180 - 08/15/13 10:27 PM

I just came in from observing N Del 2013 with my 12x63 bins. Using comp stars 38 and 48 I estimated this nova at mag 4.6.

Rich (RLTYS)


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Gil V
sage


Reged: 09/09/12

Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6028202 - 08/15/13 10:49 PM

Naked eye visible here in CT's "orange" sky.

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Herr General
member


Reged: 06/20/13

Loc: Ohio
Re: New nova in delphinus new [Re: Gil V]
      #6028212 - 08/15/13 11:02 PM

Barely visible to the naked eye here in red skies, but that's probably due to the moon and neighbor's yard lights. I think I saw it with my 6", but I'm still having trouble distinguishing it from the other stars in the eyepiece. I know it's just my inexperience, but I'd love to know conclusively whether it's the star I think it is. Hopefully once it's brighter that'll help.

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kw6562
Authoritative Ignoramus
*****

Reged: 06/25/08

Loc: MA
Re: New nova in delphinus new [Re: Herr General]
      #6028360 - 08/16/13 12:41 AM Attachment (37 downloads)

Can see it here with naked eye between clouds in an "orange" zone. I took this a few minutes ago - T2i 28mm f/2.8 1600 1m cropped and stretched. (In the original you can see M27.) --Keith

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EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
Re: New nova in delphinus new [Re: kw6562]
      #6028406 - 08/16/13 01:24 AM Attachment (27 downloads)

Tonight (08/15/2013). Through high clouds, Canon S5, 3 15 sec. exposures stacked, ISO 400, f/3.5

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EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
Re: New nova in delphinus new [Re: EJN]
      #6028407 - 08/16/13 01:27 AM Attachment (25 downloads)

Zoomed in more

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EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
Re: New nova in delphinus new [Re: EJN]
      #6028471 - 08/16/13 02:41 AM Attachment (22 downloads)

After moonset, clouds had moved out.

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EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
Re: New nova in delphinus new [Re: EJN]
      #6028479 - 08/16/13 02:51 AM Attachment (20 downloads)

And zoomed in

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Joe F Gafford
Carpal Tunnel


Reged: 12/15/06

Loc: Denver, Colorado, US
Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6028494 - 08/16/13 03:10 AM

Quote:

I just came in from observing N Del 2013 with my 12x63 bins. Using comp stars 38 and 48 I estimated this nova at mag 4.6.

Rich (RLTYS)



Ditto with my 7 x 50 binos compared with HIP 101867, the 4.8 mag. Just a hair brighter.

Joe


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Joe F Gafford
Carpal Tunnel


Reged: 12/15/06

Loc: Denver, Colorado, US
Re: New nova in delphinus new [Re: Joe F Gafford]
      #6028590 - 08/16/13 05:45 AM

After taking images and doing some crude astrometrics, I find it at mag 4.40 @ 8:02 UT . It is brighter than 11-Delta Delphini. If you can see the rhombus in Delphinus at your location, you should now see the nova.

Joe.


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Rich (RLTYS)Moderator
Post Laureate
*****

Reged: 12/18/04

Loc: New York (Long Island)
Re: New nova in delphinus new [Re: Joe F Gafford]
      #6028600 - 08/16/13 06:09 AM

This is certainly one of the brightest nova's we've seen in years.

Rich (RLTYS)


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AXAF
sage


Reged: 09/15/04

Loc: New England
Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6028609 - 08/16/13 06:25 AM

Here is my contribution, a 150 second exposure using a 15 cm f/7.3 refractor (Takahashi TOA-150) equipped with an SBIG STL-11000M:

http://www.flickr.com/photos/astrophotography_by_gary/9523424150/sizes/l/in/p...

There appears to be a tiny planetary nebula at about the 8 o'clock position, though I haven't had time to identify it yet.

~Gary


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Joe F Gafford
Carpal Tunnel


Reged: 12/15/06

Loc: Denver, Colorado, US
Re: New nova in delphinus new [Re: AXAF]
      #6028653 - 08/16/13 07:40 AM Attachment (26 downloads)

Curves:

Joe


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dgg99
member


Reged: 11/07/04

Loc: Northern Spain
Re: New nova in delphinus new [Re: Joe F Gafford]
      #6028674 - 08/16/13 08:06 AM

My estimate was magnitude 5.0 at 0:05 UT Aug 16, with 7x50 binos. To me, at the moment it was just a tad fainter than 29 Vul (4.8). It is brightening quickly!

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Joe F Gafford
Carpal Tunnel


Reged: 12/15/06

Loc: Denver, Colorado, US
Re: New nova in delphinus new [Re: Joe F Gafford]
      #6028677 - 08/16/13 08:10 AM Attachment (23 downloads)

Image:

Joe


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rinalmj
sage
*****

Reged: 11/23/09

Loc: Saxonburg, PA
Re: New nova in delphinus new [Re: Joe F Gafford]
      #6028764 - 08/16/13 09:18 AM

My estimate at 10:00 PM EDT on 8/15/13 was 4.9, just slightly dimmer than nearby 29 Vul. It was easy to see with averted vision and not too difficult to view directly.

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John Gauvreau
Astro Sensei


Reged: 10/19/07

Loc: Dundas, Ontario, Canada
Re: New nova in delphinus new [Re: rinalmj]
      #6028793 - 08/16/13 09:40 AM

Same here. My estimate at 9:45 pm EDT last night was mag 4.9
Later observations from others have it stil brightening. Looking forward to tonight!


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avdhoeven
sage


Reged: 05/27/10

Loc: netherlands
Re: New nova in delphinus new [Re: Hubert]
      #6028867 - 08/16/13 10:30 AM Attachment (18 downloads)

I had it just 5 hours after it's discovery. Brightness is changing very fast! Here is some photometry done on it. It's a great object to observe...

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avdhoeven
sage


Reged: 05/27/10

Loc: netherlands
Re: New nova in delphinus new [Re: Hubert]
      #6028870 - 08/16/13 10:31 AM Attachment (15 downloads)

And an image of last night.

Full resolution


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John_G
sage


Reged: 01/18/10

Re: New nova in delphinus new [Re: avdhoeven]
      #6028927 - 08/16/13 11:08 AM

Is there a new AAVSO designation for this Nova? The designation PNV J20233073 2046041 no longer works with the VSP.

"The star PNV J20233073 2046041 cannot be found in our database under that name. "

Thanks

John


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avdhoeven
sage


Reged: 05/27/10

Loc: netherlands
Re: New nova in delphinus new [Re: John_G]
      #6028978 - 08/16/13 11:38 AM

You can find it with 'nova del 2013'

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John_G
sage


Reged: 01/18/10

Re: New nova in delphinus new [Re: avdhoeven]
      #6029027 - 08/16/13 11:59 AM

Thanks Andre.

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Herr General
member


Reged: 06/20/13

Loc: Ohio
Re: New nova in delphinus new [Re: John_G]
      #6029077 - 08/16/13 12:21 PM

Finally spotted it last night with binoculars and the naked eye- it's quite cool to see! I'll keep viewing it as long as it stays visible.

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EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
Re: New nova in delphinus new [Re: EJN]
      #6029082 - 08/16/13 12:23 PM Attachment (20 downloads)

Constellation lines added

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EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
Re: New nova in delphinus new [Re: John_G]
      #6029084 - 08/16/13 12:25 PM

Quote:

"The star PNV J20233073 2046041 cannot be found in our database under that name. "




Try this: PNV J20233073+2046041


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Aquarellia
professor emeritus


Reged: 10/27/12

Loc: Provence, France
Re: New nova in delphinus new [Re: EJN]
      #6029143 - 08/16/13 12:56 PM

Thank you all for sharing your observations. That make me excited for tonight, still three hours to wait!

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rinalmj
sage
*****

Reged: 11/23/09

Loc: Saxonburg, PA
Re: New nova in delphinus new [Re: Aquarellia]
      #6029203 - 08/16/13 01:34 PM

What was the magnitude of this star before it started to brighten?

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avdhoeven
sage


Reged: 05/27/10

Loc: netherlands
Re: New nova in delphinus new [Re: rinalmj]
      #6029210 - 08/16/13 01:41 PM

Around 17 as far as I know...

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BrooksObs
professor emeritus


Reged: 12/08/12

Re: New nova in delphinus new [Re: avdhoeven]
      #6029240 - 08/16/13 01:53 PM

Consulting the AAVSO's latest plot of submitted data (as of 16h UT Aug 16th); it seems likely now that Nova Del will have surpassed magnitude 4.0 by the time darkness falls in North America tonight. It is most unfortunate that the waxing gibbous moon is at the same time edging toward its least elongation with the nova's position, reducing the spectacle.

Based on the shape of the lightcurve so far, it seems increasingly likely that this object is at least a "relatively slow" nova, making its peak brightness still potentially a day, or perhaps even several(!), in the future.

BrooksObs

Edited by BrooksObs (08/16/13 01:54 PM)


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the1andonlyfinn
member


Reged: 07/17/11

Loc: Rancho Cucamonga, California
Re: New nova in delphinus new [Re: BrooksObs]
      #6029252 - 08/16/13 01:59 PM

If true we are looking at the brightest so far this century. For those who had awful Perseid weather this is a nice consolation!

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BrooksObs
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Re: New nova in delphinus new [Re: the1andonlyfinn]
      #6029282 - 08/16/13 02:20 PM

Quote:

If true we are looking at the brightest so far this century. For those who had awful Perseid weather this is a nice consolation!




In fact, if Nova Del should indeed surpass magnitude +4.0 this evening, I believe that this would make it the brightest nova easily visible from the Northern Hemisphere in nearly 40 years! However, it is unlikely to beat the record set by 1975's Nova Cyg, which I saw peak at a truly spectacular +1.7 , looking like a second Deneb in the Northern Cross!

BrooksObs


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Dean Norris
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Re: New nova in delphinus new [Re: the1andonlyfinn]
      #6029283 - 08/16/13 02:23 PM

Observed the nova last night ( 5:30 UT 8/16/13) and found it's magnitude to be 4.5 . And big difference from the night before.

Dean


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Tom Laskowski
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Re: New nova in delphinus new [Re: BrooksObs]
      #6029334 - 08/16/13 02:45 PM

Quote:


In fact, if Nova Del should indeed surpass magnitude +4.0 this evening, I believe that this would make it the brightest nova easily visible from the Northern Hemisphere in nearly 40 years! However, it is unlikely to beat the record set by 1975's Nova Cyg, which I saw peak at a truly spectacular +1.7 , looking like a second Deneb in the Northern Cross!

BrooksObs




I remember that one very well. It was very beautifully placed in the Cygnus Milky Way. Saw Nova Del 2013 easily last night with 10x50s thru moderate cloud cover. Tonight should be very clear.


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Eteny
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Re: New nova in delphinus new [Re: Joe F Gafford]
      #6029381 - 08/16/13 03:13 PM

Hello everyone,

Here is an image of Nova Delphini 2013 from the Philippines. Image taken on August 16, 2013 using a tripod-mounted Canon 450D DSLR with 50 mm lens set at f/1.8, 10 x 6 sec exp, ISO 1600.


http://nightskyinfocus.com/2013/08/17/nova-delphini-2013-a-newly-discovered-n...

Clear skies!

Eteny


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jmandell
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Re: New nova in delphinus new [Re: Eteny]
      #6029395 - 08/16/13 03:19 PM

I was clouded out last night, but tonight looks good, so I'll be imaging tonight. Will be looking for it naked eye as well. Will it be naked eye

Edited by jmandell (08/16/13 03:35 PM)


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Dave Mitsky
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Re: New nova in delphinus new [Re: jmandell]
      #6029516 - 08/16/13 04:37 PM

A number of observers have reported seeing Nova Delphini 2013 without optical aid.

Dave Mitsky


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Aquarellia
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Re: New nova in delphinus new [Re: Dave Mitsky]
      #6029573 - 08/16/13 05:10 PM Attachment (22 downloads)

Indeed, I can detect the nova with unaided eyes, quite difficult because of the moon light. Easy with binoculars.
My mag. estimation via the AAVSO map : 4.7 +/- 0.2
Here my sketch :

Edited by Aquarellia (08/16/13 05:15 PM)


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Nick Rose
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Re: New nova in delphinus new [Re: Aquarellia]
      #6029584 - 08/16/13 05:14 PM

Last night was a clear night so I dusted off the telescope and imaged Nova Delphini 2013. This was my first time using the colored filters so its not the best. L 30x60sec, RGB 5x30sec.


New Nova 3 by Nick R2006, on Flickr


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Octans
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Re: New nova in delphinus new [Re: Nick Rose]
      #6029589 - 08/16/13 05:17 PM

Looks like it may have reached / passed its peak based on the latest data points: http://www.aavso.org/lcg/plot?auid=000-BLC-933&starname=NOVA%20DEL%202013...

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BrooksObs
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Re: New nova in delphinus new [Re: Octans]
      #6029637 - 08/16/13 05:52 PM

Quote:

Looks like it may have reached / passed its peak based on the latest data points: [url=http://www.aavso.org/lcg/plot?auid=000-BLC-933




Indeed, novae are like comets in a way. They tend to have minds of their own! I had no sooner posted about Nova Del's potential for breaking magnitude 4.0 tonight when observations from Europe began appearing that indicated a drop in the nova's brightness.

So, it looks like the peak brightness came while Nova Del was best placed for observation in the Far East. Now it becomes a matter of waiting to see what it might do next...particularly if it indeed turns out to be a "slow" nova.

BrooksObs

Edited by BrooksObs (08/16/13 06:19 PM)


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Nick Rose
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Re: New nova in delphinus new [Re: BrooksObs]
      #6029644 - 08/16/13 05:55 PM

Does anyone know what the distance to the Nova is?

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Octans
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Re: New nova in delphinus new [Re: Nick Rose]
      #6029707 - 08/16/13 06:27 PM

A quick search turned up this: http://en.wikipedia.org/wiki/Nova#Novae_as_distance_indicators It says that:

Quote:


For instance, the distribution of their absolute magnitude is bimodal, with a main peak at magnitude −8.8, and a lesser one at −7.5. Novae also have roughly the same absolute magnitude 15 days after their peak (−5.5).





If you have apparent magnitude (m) and absolute magnitude (M), the distance (d) in parsecs is d = 10^((m-M+5)/5)

From the AAVSO curve, it looks like the peak is at an apparent magnitude of 4.3. Assuming an absolute magnitude of -8.8 (which is just an assumption, since we don't know yet), the distance is:

d = 10^((4.3+8.8+5)/5) = about 4000 parsecs

The alternative peak brightness estimate (M = -7.5) turns up a distance of about 7000 parsecs.

The margin of error is pretty big, but the distance should be somewhere around there. If there's a significant amount of dust in front of it, the true distance will be closer.


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avdhoeven
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Re: New nova in delphinus new [Re: Nick Rose]
      #6029708 - 08/16/13 06:27 PM

Here is an animation before and after based on my own and Digitized sky survey data...

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thewheel
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Little Dolphin Nova North of Tucson new [Re: avdhoeven]
      #6029745 - 08/16/13 07:00 PM

Saw this last night naked eye just north of Tucson at 4am (1100GMT 2013/8/16). In 8x40 binoculars it was about the same magnitude as 29 Vul (Mag ~ 4.8). It seemed brighter than it was at 10pm earlier. Moon had set by 4am.

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Bruce MacDonald
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Re: Little Dolphin Nova North of Tucson new [Re: thewheel]
      #6029798 - 08/16/13 07:39 PM

I estimated Nova Del 2013 at mag +4.9 this evening at 2100 UTC

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John Gauvreau
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Re: Little Dolphin Nova North of Tucson new [Re: Bruce MacDonald]
      #6030018 - 08/16/13 10:28 PM

Just had a look at 10:00pm EDT and I would estimate magnitude 4.9, just slightly dimmer than 29 Vul.

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tezster
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Re: Little Dolphin Nova North of Tucson new [Re: Bruce MacDonald]
      #6030019 - 08/16/13 10:29 PM

Observed it with 10x50 binoculars around 0200 UTC - the magnitude looked identical to 29 Vul.

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Gil V
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Re: Little Dolphin Nova North of Tucson new [Re: tezster]
      #6030153 - 08/17/13 12:09 AM

Dimmer than last night. No longer naked eye in orange zone CT.

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John_G
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Re: Little Dolphin Nova North of Tucson new [Re: Gil V]
      #6030197 - 08/17/13 12:39 AM

I was able to spot it tonight with the naked eye but just barely. When looking directly at it, it would appear and disappear the reappear. A little better when the moon moved behind some clouds.

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nytecam
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Re: Little Dolphin Nova from London! new [Re: John_G]
      #6030343 - 08/17/13 04:46 AM Attachment (18 downloads)

A rare peep in finder for for me but nova easily visible in scope's small finder ! My montage from last night of nova field plus lo-res spectrum via Rainbow grating including Altair's for reference of hydrogen Balmer lines - emission lines in nova's spectrum typical and should intensify with the week or so.

In fact my manual slew from Altair, I ID nova by its bright H-alpha line on downloaded spectrum so I knew I was on target - good fun


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Rich (RLTYS)Moderator
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Re: Little Dolphin Nova from London! new [Re: nytecam]
      #6030402 - 08/17/13 07:27 AM

Under hazy skies I observed N Del 2013 last night (8/16) with my 12x63's and using comp stars 44 and 48 I estimated the nova at mag 4.6. Yes the nova maxed out at about 4.2 and is now fadeing.

Rich (RLTYS)


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Hubert
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Re: Little Dolphin Nova from London! new [Re: Rich (RLTYS)]
      #6030436 - 08/17/13 08:15 AM

We must watch out for rebrightning! That's always possible

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SabiaJD
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Re: Little Dolphin Nova from London! new [Re: Hubert]
      #6030517 - 08/17/13 09:18 AM Attachment (27 downloads)

I viewed Nova Del 2013 last night August 16, 2013 EDT, August 17, 2013 UT under clearer sky condition, but with brighter moonlight, from a darker sky location.

Position my chair in the shade of a wall to block out the moonlight, as I viewed the nova with 10 x 50 binocular. Using AAVSO Chart 12508BUL the nova was at 4.6 magnitude. This is brighter than the previous night.

I had some difficultly seeing the nova with the naked eye, mainly due to the moonlit sky condition.

The photo is taken with a 77mm f/6.1 BORG scope with a SBIG ST-i camera. A stack of 29, 6 second exposures.
Eliminated one with a satellite between the nova and star SAO 88610.
Recalled seeing 4 satellites on the previous evening emerging from the shadow of the Earth moving north.


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Gil V
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Re: Little Dolphin Nova from London! new [Re: SabiaJD]
      #6030557 - 08/17/13 09:38 AM

Not detectable by eye in CT last night. Thin clouds. Moonlight. Through scope, appeared slightly less bright than on the 15th.

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dgg99
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Re: Little Dolphin Nova from London! new [Re: Gil V]
      #6030707 - 08/17/13 11:06 AM

Another brightness estimate from Spain: magnitude 4.8 at 23:35 UT on Aug. 16th, using my 7x50. I was able to see it dimly naked eye after moonset.

And an image...


Nova Delphini 2013 by digonzalez, in Flickr


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thewheel
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Reged: 07/01/09

Loc: Half Mile from Tucson
Re: Little Dolphin Nova still there! new [Re: dgg99]
      #6031054 - 08/17/13 02:10 PM

From 1/2 mile north of Tucson (give or take), still there naked eye at 2am (900UT 2013.8.17 Stardate). Seems to be little bit dimmer tonite , just under 29 Vulpeculae. Nice to be out cruising in binoculars 8x40 and 12x50. M31,M33,M42,M27,M36,M37,M38,Double Cluster, Hyades, Pleiades/w nebulosity,glimpse of Veil?,Kemble's Cascade.
Sounds of Owl, Coyotes, and unidentified noisemaking creature.

Nova seems to be just at naked eye direct visibility.

Was raining earlier, moon had set.


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Dean Norris
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Re: Little Dolphin Nova still there! new [Re: thewheel]
      #6031254 - 08/17/13 03:47 PM

Last night at 5:30 UT 8/17/13 I estimated the magnitude of the nova at 4.9. Has faded some from the previous evening when it was 4.5.

Dean


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AstroTatDad
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Re: Little Dolphin Nova from London! new [Re: SabiaJD]
      #6031467 - 08/17/13 06:03 PM Attachment (21 downloads)

Quote:

I viewed Nova Del 2013 last night August 16, 2013 EDT, August 17, 2013 UT under clearer sky condition, but with brighter moonlight, from a darker sky location.

Position my chair in the shade of a wall to block out the moonlight, as I viewed the nova with 10 x 50 binocular. Using AAVSO Chart 12508BUL the nova was at 4.6 magnitude. This is brighter than the previous night.

I had some difficultly seeing the nova with the naked eye, mainly due to the moonlit sky condition.

The photo is taken with a 77mm f/6.1 BORG scope with a SBIG ST-i camera. A stack of 29, 6 second exposures.
Eliminated one with a satellite between the nova and star SAO 88610.
Recalled seeing 4 satellites on the previous evening emerging from the shadow of the Earth moving north.




Great photo here is my sketch of it http://www.cloudynights.com/ubbthreads/showflat.php?Cat=0&Number=6031460&...

I revisited it last night and touched it up some.


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AstroTatDad
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Re: Little Dolphin Nova from London! new [Re: AstroTatDad]
      #6031473 - 08/17/13 06:05 PM

Great stuff everyone

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EJN
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Re: Little Dolphin Nova from London! new [Re: dgg99]
      #6031576 - 08/17/13 07:06 PM Attachment (31 downloads)

Image from last night, Canon A630

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EJN
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Re: Little Dolphin Nova from London! new [Re: EJN]
      #6031578 - 08/17/13 07:08 PM Attachment (20 downloads)

Longer focal length, Canon S5

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Octans
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Re: Little Dolphin Nova from London! new [Re: EJN]
      #6031976 - 08/17/13 11:33 PM

The light curve is starting to look really interesting: http://www.aavso.org/lcg/plot?auid=000-BLC-933&starname=NOVA%20DEL%202013...

After a pretty steep drop in brightness, it's flat again (that, or it's now decreasing really, really slowly).


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jmandell
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Re: Little Dolphin Nova from London! new [Re: Octans]
      #6032059 - 08/18/13 12:42 AM Attachment (21 downloads)

Well, I was finally able to get an image of it! I attempted some photometry using IRIS and following the AAVSO's tutorial for DSLR photometry, and I got a magnitude of +4.8

Taken with a Nikon D700, 105mm lens, astrotrac.
Stack of 10x20sec exposures with Dark, Flat, and Bias applied.

It was my first time ever doing photometry, so it is possible that I messed up, and the estimate is totally off.

(And the moon was shining bright nearby)

Edited by jmandell (08/18/13 12:51 AM)


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Joe F Gafford
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New nova in delphinus new [Re: jmandell]
      #6032273 - 08/18/13 04:48 AM Attachment (27 downloads)

Here's my animation of my two images seen earlier. 2 second toggle between frames.

Joe


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Louietheflyisme
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Re: New nova in delphinus new [Re: Joe F Gafford]
      #6032330 - 08/18/13 06:17 AM

Just went and looked at it. My guess is about 4.5, but I could be out by a degree either side . Nearly full moon and light pollution didn't help either. Still cool, though- my first nova .

Edited by Louietheflyisme (08/18/13 06:17 AM)


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Rich (RLTYS)Moderator
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Re: New nova in delphinus new [Re: Louietheflyisme]
      #6032383 - 08/18/13 08:09 AM

I observed N Del 2013 last evening (8/17) under hazy skies and moon light. Using comp stars 48 and 57 I estimated its mag at 5.0. The AAVSO lightcurve shows the nova has leveled off at about fifth magnitude.

Rich (RLTYS)


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Tom Laskowski
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Re: New nova in delphinus new [Re: Louietheflyisme]
      #6032420 - 08/18/13 08:45 AM Attachment (27 downloads)

Nice, clear, moonlit, light-polluted night here.

Edited by Tom Laskowski (08/18/13 08:46 AM)


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robin_astro
sage


Reged: 12/18/05

Re: New nova in delphinus new [Re: Tom Laskowski]
      #6032505 - 08/18/13 09:48 AM

There's lots of impressive amateur spectroscopy being done on this object with over 70 spectra at all resolutions so far and a call from pro Steven Shore for more coverage, particularly from time zones outside Europe
http://www.spectro-aras.com/forum/viewtopic.php?f=5&t=682
See also an interesting commentary here from Steven Shore on what is going on in this nova
http://tech.groups.yahoo.com/group/spectro-l/message/14643

I have been clouded out since this nova appeared :-(

Robin


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Rich (RLTYS)Moderator
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Re: New nova in delphinus new [Re: robin_astro]
      #6035889 - 08/20/13 06:23 AM

Despite a nearly full moon I was able to observe N Del 2013 last evening (8/19) as it continues to slowly fade. I estimated its magnitude at 5.3 using comp stars 48 and 57.

Rich (RLTYS)


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Rich (RLTYS)Moderator
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Re: New nova in delphinus new [Re: Hubert]
      #6036838 - 08/20/13 04:07 PM

An AAVSO article on N Del 2013 you might want to read.

Whats next for N Del 2013.

Rich (RLTYS)


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SabiaJD
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Reged: 02/20/05

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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6036919 - 08/20/13 04:56 PM

Rich, I came up with magnitude 5.4 last night, August 19,2013 EDT 9:00 pm. It was difficult to see the bright stars of Delphinus with out optical aid.

May get another chance to photograph it tonight, August 20, 2013

Quote:

Despite a nearly full moon I was able to observe N Del 2013 last evening (8/19) as it continues to slowly fade. I estimated its magnitude at 5.3 using comp stars 48 and 57.

Rich (RLTYS)




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SabiaJD
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Re: New nova in delphinus new [Re: SabiaJD]
      #6037505 - 08/20/13 11:41 PM Attachment (14 downloads)

Skies did clear and I was able to get another set of 29, 6 second exposure of Nova DEL 2013 with a BORG 77 mm and SBIG ST-i camera. Side by side comparison. the Moon was Full tonight

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Nick Rose
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Re: New nova in delphinus new [Re: SabiaJD]
      #6037568 - 08/21/13 01:02 AM

According to Steven Shore the Nova is between 3-4kpc.
This was via: http://www.spectro-aras.com/forum/viewtopic.php?f=5&t=682&start=80

"The Na I velocities now seem to agree with the hydrogen from the
interstellar medium (attached) so we can estimate the minimum distance
(likely 3 kpc) and maximum (likely 4 kpc). It's not in the plane but
not too far above it, and the UBV luminosity is about the same as the
maximum we would expect for a nova at this stage."


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Special Ed
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Re: New nova in delphinus new [Re: Nick Rose]
      #6037781 - 08/21/13 06:47 AM


I've never posted in this forum but I admire what you folks do.

At 0150 8/20 UT (9:50 PM EDT 8/19), I observed the nova through my 10x50 binoculars. Estimated mag is 5.1-5.2 as compared to eta Sge (mag 5.0). Transparency was very good but the bright Moon allowed only the stars of the Summer Triangle to be visible.


{Edit: I accidently posted this in the wrong thread the other day so I'm trying to correct that. It appears that my magnitude estimate is a liitle brighter than Rich's and John's for the same time period.]


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elleng
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Reged: 07/23/13

Re: New nova in delphinus new [Re: Juan J. Gonzalez]
      #6038324 - 08/21/13 01:05 PM

Having great fun watching and recording the brightness changes. Will also send my results to the AAVSO and BAA VSS later.

I've found a nice chart for estimating the magnitude of nova DEL

http://www.freestarcharts.com/index.php/19-news-and-current-events/188-nova-d...


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BrooksObs
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Reged: 12/08/12

Re: New nova in delphinus new [Re: elleng]
      #6039349 - 08/21/13 11:22 PM

Looks like Nova Del 2013 is declining at a rate of between 0.2 and 0.3 magnitudes per day. I got 5.6 just about an hour ago.

BrooksObs


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Aquarellia
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Re: New nova in delphinus new [Re: BrooksObs]
      #6039612 - 08/22/13 05:47 AM Attachment (30 downloads)

I agree BrooksObs
I got 5.7 at 22:10 UT aug 21st.
Here a picture made from France SW (Brax observatory)
This picture was done Aug 20, 21UT by 3 friends of mine
Michel Sarrau, Michel Lefèvre and Antoine Altura
They use an Atik Caméra (16hr) Televue refractor 101 NPIs - 570mm. Total pose 10 x 3 min

Edited by Aquarellia (08/22/13 05:48 AM)


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Rich (RLTYS)Moderator
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Re: New nova in delphinus new [Re: Aquarellia]
      #6039630 - 08/22/13 06:27 AM

Observed N Del 2013 last evening (8/21) under bright, hazy skies. Estimated magnitude 5.5.

Rich (RLTYS)


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Hubert
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Reged: 09/26/06

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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6039669 - 08/22/13 07:31 AM

My estimation last night was also 5.5.

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John_G
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Re: New nova in delphinus new [Re: Hubert]
      #6039678 - 08/22/13 07:47 AM

Should be easily visible to the naked eye next week before moon rise. Even on the 24th there might be a 10 or 15 minute opportunity for viewing.

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dgg99
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Re: New nova in delphinus new [Re: John_G]
      #6039685 - 08/22/13 07:56 AM

I estimated also magnitude 5.5 last night at around 22:20 UT.

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Dean Norris
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Re: New nova in delphinus new [Re: dgg99]
      #6040437 - 08/22/13 04:32 PM

I estimated the nova's magnitude last night at 5.6 at 5:45 UT 8/22/13.

Here's an estimate from the 19th that i didn't get around to posting till now - 5.0 at 6:30 UT 8/19/13.

Dean


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nytecam
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Re: New nova in delphinus new [Re: Dean Norris]
      #6041232 - 08/23/13 04:49 AM Attachment (22 downloads)

My pic from last night Aug 22 through drifting cloud - my estimate mag 5.5 against circled star and Sloan DSS

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BrooksObs
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Re: New nova in delphinus new [Re: nytecam]
      #6041428 - 08/23/13 08:46 AM

Extrapolating this morning from the near 10,000 brightness estimates reported so far to the AAVSO suggests that Nova Del's magnitude will have subsided to very near 6.0 by the time darkness falls over the U.S. this evening. The decline rate in the lightcurve's slope continues, remaining close to 0.25 magnitudes per day since August 20.10UT. Thus, it looks like Nova Del's show for the unaided eye is probably about over.

BrooksObs

Edited by BrooksObs (08/23/13 08:50 AM)


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Bakes
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Re: New nova in delphinus new [Re: BrooksObs]
      #6042578 - 08/23/13 10:00 PM

I just set up the dob in the backyard. Through the 9x50 finder, Nova Del 2013 looks like a good match with HR7839. Listed on the AAVSO chart as 6.2 mag.

But I am not the most skilled observer. What do others think?


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John_G
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Re: New nova in delphinus new [Re: Bakes]
      #6042722 - 08/23/13 11:53 PM

Just after sunset and and a few minutes before moon rise I made and estimate of 6.0 with binoculars.

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Re: New nova in delphinus new [Re: Bakes]
      #6043130 - 08/24/13 08:02 AM

I observed N Del 2013 last evening (8/23) at mag 5.7 using comp stars 57 and 64.

Rich (RLTYS)


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VanJan
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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6043494 - 08/24/13 12:19 PM

At 1 AM EDT on 8/24/13 with 8x42 binoculars, I estimated the magnitude at 6.0, using comparison stars of 5.9, 6.1, and 6.2.

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BrooksObs
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Re: New nova in delphinus new [Re: VanJan]
      #6043990 - 08/24/13 05:44 PM

It is becoming ever clearer that Nova Del's rise must have been very steep for a "slow" nova. The latest data provided through the AAVSO indicates that the nova was still fainter than at least magnitude 11.0 on Aug. 13.96UT, just a day and a half prior to the nova's discovery.

Considering that the rise occurred almost immediately following the scheduled peak of the Perseid meteor shower, one thing surprises me. Given that countless amateurs must have been out documenting the meteor shower with cameras of all sorts for several nights either side of the peak, it is a bit perplexing that as yet no positive observations of the rising nova have so far been reported. Will such yet come to light, I wonder?

BrooksObs

Edited by BrooksObs (08/24/13 05:46 PM)


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Re: New nova in delphinus new [Re: BrooksObs]
      #6044479 - 08/25/13 12:34 AM

Hello,

At 0200 8/25 UT using 12x36 IS II binoculars, I estimated the nova magnitude at 6.2 using nearby stars of mag 6.1, 6.4, and 5.7. The Moon had not yet risen. I also made this animation of the nova fading.


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Re: New nova in delphinus new [Re: Special Ed]
      #6044772 - 08/25/13 08:11 AM

Observed N Del last night (8/24) and estimated its mag at 5.9 using comp stars 57 and 64.

Rich (RLTYS)


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John_G
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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6044816 - 08/25/13 09:08 AM

Made an estimate last night with my 8x40s. Mine was 6.1 using magnitude 61 and 62 comparison stars.

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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6044829 - 08/25/13 09:16 AM

Observed Nova Del 2013 in early evening sky last night August 24, 2013 EDT 9:14 pm from my backyard. With dark sky condition, low humidity and cool temperature, the nova was considerable dimmer than my previous views of it.

Used the stars from AAVSO 12508BUL chart to determine the magnitude of the nova has dropped to mag 6.0.


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Re: New nova in delphinus new [Re: SabiaJD]
      #6045409 - 08/25/13 03:30 PM

Here's my last 3 estimations of the nova's magnitude:

5.8 on 5 UT 8/23/13
6.1 on 5 UT 8/24/13
6.2 on 5:45 UT 8/25/13

Dean


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canukLX90
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Re: New nova in delphinus new [Re: Dean Norris]
      #6046363 - 08/26/13 03:21 AM Attachment (33 downloads)

Finally a clear night sky to view this wonder. Easily
visible in the 8X50 finder. If it wasn't for the clouds
I probably would have seen my first naked eye nova when it
was at its peak.

10 X 30 seconds at ISO 800 / F 2.8 PowerNewt / no processing
taken on the night of the 24th

PJ


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Re: New nova in delphinus new [Re: canukLX90]
      #6046452 - 08/26/13 06:29 AM

Observed N Del 2013 last night (8/25) using comp stars 57 and 61 I estimated the magnitude at 6.0. N Del's rate of fadeing seems to have slowed down.

Rich (RLTYS)


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SabiaJD
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Re: New nova in delphinus new [Re: BrooksObs]
      #6047047 - 08/26/13 01:57 PM

Quote:

It is becoming ever clearer that Nova Del's rise must have been very steep for a "slow" nova. The latest data provided through the AAVSO indicates that the nova was still fainter than at least magnitude 11.0 on Aug. 13.96UT, just a day and a half prior to the nova's discovery.

Considering that the rise occurred almost immediately following the scheduled peak of the Perseid meteor shower, one thing surprises me. Given that countless amateurs must have been out documenting the meteor shower with cameras of all sorts for several nights either side of the peak, it is a bit perplexing that as yet no positive observations of the rising nova have so far been reported. Will such yet come to light, I wonder?

BrooksObs




That is a good question. A 35mm SLR (film) with 50mm lens on a tracking platform will record stars to 10 magnitude. I have used such a setup to record the variable star U Sagitta on film. Modern DSLR camera with 50mm to 85mm does this with ease on a tracking platform. At the present time I do not own a DSLR camera, just a "point and shoot" with zoom features.

So why have no pre discovery images come to light? Poor record keeping practice comes to mind. Only the images that contain a meteor were kept, the rest were deleted. If all of the images made it from the camera storage device to a computer or storage then there is s better chance that one or more may have the area of the nova.
To identify the region of the sky the images were taken would be difficult task to any one who is not familiar with the constellations. More difficult if a written or verbal record was not taken during the sessions. Novice would have a hard time knowing what area of the sky the images show.

I have assisted many people with DSLRs on tripod image the sky, very few could identify the bright stars of Cassiopeia in their photos.

Looking at the meteor images posted on www.spaceweather.com for any pre discovery of Nova DEL 2013 finds very few with Delphinius in the image.

These are worth a look. I question the dates on some of these; local, UT or uploaded date? EXIF file with no information usually indicates a processed image.

http://spaceweather.com/gallery/indiv_upload.php?upload_id=85358 Nova not visible

http://spaceweather.com/gallery/indiv_upload.php?upload_id=85318 ?

http://spaceweather.com/gallery/indiv_upload.php?upload_id=85487 ?


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Re: New nova in delphinus new [Re: SabiaJD]
      #6049513 - 08/27/13 07:35 PM

Hey, John, how ya doing? I think I've pinned down the explanation for a lack of positive imagining of the nova prior to its discovery.

It looks to me increasingly likely that most of the nova's rise between perhaps magnitude 12, or fainter, and its 6.8 discovery brightness must have taken place during just the hours when it was evening over the mid Pacific Basin on August 14th UT (the discovery coming on August 14.58UT). This is certainly what the improving negative observations are implying now.

Such timing would severely limit the number of potential ground station observers who might have been imaging the sky at the critical time. We do know with certainty now that the nova was still fainter than, and not detected, at magnitude 11.0 on August 13.96UT and fainter than 8.0 on August 14.21UT. Thus, the rise must have been very steep, perhaps surprisingly so for a rather "slow" nova, occurring at the least favorable longitude on the Earth for it being discovered during its rise.

BrooksObs

Edited by BrooksObs (08/27/13 07:38 PM)


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Dave Mitsky
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Re: New nova in delphinus new [Re: Dean Norris]
      #6049514 - 08/27/13 07:36 PM

Quote:

Here's my last 3 estimations of the nova's magnitude:

5.8 on 5 UT 8/23/13
6.1 on 5 UT 8/24/13
6.2 on 5:45 UT 8/25/13

Dean




I observed Nova Del 2013 with Celestron Ultima 10x50s at 23:30 p.m. EDT (3:30 UT) on Saturday night and put its brightness at approximately magnitude 6.2.

Dave Mitsky


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EJN
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Re: New nova in delphinus new [Re: Dave Mitsky]
      #6050009 - 08/28/13 02:23 AM

Quote:

Quote:

Here's my last 3 estimations of the nova's magnitude:

5.8 on 5 UT 8/23/13
6.1 on 5 UT 8/24/13
6.2 on 5:45 UT 8/25/13

Dean




I observed Nova Del 2013 with Celestron Ultima 10x50s at 23:30 p.m. EDT (3:30 UT) on Saturday night and put its brightness at approximately magnitude 6.2.

Dave Mitsky




Sunday night (8/25/13) at 11:30 pm CDT I estimated it at mag 6.2, there are 2 nearby stars on
the AAVSO chart marked 61 & 62, it was definitely dimmer than the mag. 6.1 star, and looked
the same as the 6.2 star.

Last night there were too many high clouds, and haze.

Just a few minutes ago, at 01:00 am CDT 08/28/13, in binoculars, it looked closer
to the mag 6.1 star, so it has leveled off again, and might be brightening
slightly.

I checked the latest AAVSO light curve plot, and it seems to bear this out.

http://www.aavso.org/lcg/plot?auid=000-BLC-933&starname=NOVA%20DEL%202013...


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John_G
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Re: New nova in delphinus new [Re: EJN]
      #6052006 - 08/29/13 07:06 AM

On 8/29/13 at 2:30 UT my estimate was 6.5 with comp stars 64 and 69. I used my 10x50s.

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SteelStar
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Re: New nova in delphinus new [Re: John_G]
      #6052091 - 08/29/13 08:34 AM

My estimate was also 6.5 using my trusty ST120 refractor at 30x on the evening of the 28th.

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Rich (RLTYS)Moderator
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Re: New nova in delphinus new [Re: SteelStar]
      #6053880 - 08/30/13 06:37 AM

Despite clouds and haze I was able to observe N Del 2013 last evening (8/29), using comp stars 62 and 64 I estimated the nova's mag at 6.4.

Rich (RLTYS)


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Hubert
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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6054305 - 08/30/13 12:06 PM

I estimated it yesterday (8/29) 6.6.

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John_G
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Re: New nova in delphinus new [Re: Hubert]
      #6054377 - 08/30/13 12:46 PM

My estimate last night with 10x50s was 6.6 as well.

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Dean Norris
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Re: New nova in delphinus new [Re: John_G]
      #6054474 - 08/30/13 01:38 PM

Last night I too estimated the brightness of the nova as 6.6 at 5:10 UT 8/30/13.

Dean


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NJScope
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Re: New nova in delphinus new [Re: Hubert]
      #6055034 - 08/30/13 08:11 PM Attachment (24 downloads)

I've been monitoring Nova Del 2013 with an SBIG DSS-7/ST-402ME spectrometer for the past week. Unfortunately I missed the earliest stages of the eruption during which P-Cygni like signals could be observed. Nonetheless, the changes between 21Aug and 28Aug2013 have been quite remarkable. One of the more notable differences is the increase in the Halpha emission peak (6562.82 Angstroms) relative to the other Balmer (Hbeta @4861.33, Hgamma @4340.47 and Hdelta @4101.74) emission lines.

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Re: New nova in delphinus new [Re: Hubert]
      #6057220 - 09/01/13 08:01 AM

Observed N Del 2013 last evening (8/31), under hazy skies. Using comp stars 69 and 71 I estimated its mag at 7.0.

Rich (RLTYS)


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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6061925 - 09/03/13 11:35 PM

I observed Nova Del at 0230 9/04/13 UT with my 12x36 IS II binoculars. Estimated magnitude was 7.2 using nearby comp star 7.1--it's dimmed another whole magnitude since my previous observation 10 days ago.

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Re: New nova in delphinus new [Re: Special Ed]
      #6062166 - 09/04/13 06:08 AM

I observed N Del last evening (9/3) with my 12x63's. Using comp stars 71 and 73 I estimated the nova's mag at 7.1.

Rich (RLTYS)


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Re: New nova in delphinus<>animation new [Re: Rich (RLTYS)]
      #6063146 - 09/04/13 06:00 PM Attachment (23 downloads)

Here's an animation of 3 sketches I did over a 20 day period.

Edited by Special Ed (09/06/13 06:23 AM)


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Aquarellia
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Re: New nova in delphinus<>animation new [Re: Special Ed]
      #6063629 - 09/05/13 12:19 AM

Well done Michael, very realistic.

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Re: New nova in delphinus<>animation new [Re: Special Ed]
      #6063866 - 09/05/13 07:26 AM

Looks good.

Rich (RLTYS)


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Re: New nova in delphinus<>animation new [Re: Rich (RLTYS)]
      #6064389 - 09/05/13 12:51 PM

Michel & Rich--thanks!

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Re: New nova in delphinus<>animation new [Re: Rich (RLTYS)]
      #6064818 - 09/05/13 04:49 PM

Michael great animation of the nova. The scope you used looks ideal for this kind of observing. I've been making my estimations with my 9x50 finder. Though I also check it out in the main scope as well.

Here's my latest estimations:

6.9 at 6 UT 8/31/13
7.2 at 5:40 UT 9/4/13
7.3 at 5:40 UT 9/5/13

Dean


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SabiaJD
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Re: New nova in delphinus<>animation new [Re: Rich (RLTYS)]
      #6065373 - 09/05/13 10:59 PM Attachment (27 downloads)

Better skies have arrived, was able to get another photo of the Nova with the 77 mm Borg f/6.7 last night.

Tonight with 10 x 50 binoculars I estimated the nova was 7.1 magnitude.

Edited by SabiaJD (09/05/13 11:01 PM)


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Bakes
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Re: New nova in delphinus<>animation new [Re: SabiaJD]
      #6065391 - 09/05/13 11:19 PM

Great photo series!

Watching the nova tonight, it no longer appears yellowish to me. It seems redder to my eyes. Does anyone else share this perception?


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John_G
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Re: New nova in delphinus<>animation new [Re: Bakes]
      #6065585 - 09/06/13 04:54 AM

My estimate using my 10x50s on 9/6/13 at 1:30 UT was 7.4 using comp stars 72 and 75.

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Special Ed
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Re: New nova in delphinus<>animation new [Re: John_G]
      #6065642 - 09/06/13 06:29 AM

Nice set of images, John.

@ Dean--yes, my little reflector is good for widefield low power views--I like to include any star patterns or asterisms nearby to help with identification or comparisons. At high power, the mirror is so curved that the coma is really bad.


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RobK
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Re: New nova in delphinus<>animation new [Re: Special Ed]
      #6065758 - 09/06/13 08:56 AM Attachment (17 downloads)

Hampered by weather here but finally got a short break from 30 Aug - 3 Sept and managed to get a few spectra of this nova. One spectrum (30 Aug) is attached, pretty pleased with the result as I'm just using a zoom lens on a DSLR & a Star Analyser grating (SA100).

Here's a link to all the spectra I got - I've put them together in an animation that really doesn't show much other than the difference in sky transparency!
http://i727.photobucket.com/albums/ww271/Rob_Kau/30aug-03Septbarampgraphanim.gif

Cheers -


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Special Ed
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Re: New nova in delphinus<>animation new [Re: RobK]
      #6067130 - 09/07/13 12:43 AM

Observed Nova Del at 0245 7 Sept. UT with my 12x36 IS II binoculars. Seeing and transparency both very good. Estimated mag is 7.3.

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SabiaJD
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Re: New nova in delphinus<>animation new [Re: Special Ed]
      #6067437 - 09/07/13 09:34 AM

Thanks, the photos are a bonus to observing this nova with binoculars and the naked eye.

I missed viewing the bright nova Cygnus 1975.


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Rich (RLTYS)Moderator
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Re: New nova in delphinus<>animation new [Re: SabiaJD]
      #6070797 - 09/09/13 07:45 AM

Observed N Del 2013 with my 12x63's last night (9/8)and estimate its mag at 7.2. At this point N Del seems to have leveled off in brightness, being the same for the last few nights.

Rich (RLTYS)


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MtnGoat
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Re: New nova in delphinus<>animation new [Re: Bakes]
      #6071295 - 09/09/13 01:05 PM

I thought it was just me, but last night it was so much redder I realized it couldn't be. I noticed it going from what was very close to white near peak to a more yellowish tinge about a week ago, and last night thought it had acquired a more ruddy reddish tinge.

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Re: New nova in delphinus<>animation new [Re: MtnGoat]
      #6072303 - 09/09/13 11:01 PM

Just viewed now after not being able to for a few days and I was struck by how red it looked. Didn't see the previous posts until just now.

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canukLX90
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Re: New nova in delphinus<>animation new [Re: C_Moon]
      #6072589 - 09/10/13 04:28 AM Attachment (29 downloads)

I have noticed the red color in my images over the last
couple of times. Here is what I took this evening.
10 X 30 seconds @ ISO 800 with modded 450D DSLR and
PowerNewt @ F 2.8 No processing done other than crop from
full frame.

PJ


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nytecam
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Re: New nova in delphinus<>animation new [Re: RobK]
      #6073125 - 09/10/13 12:17 PM

Thanks Rob for sharing - very impressive and colourful results. Hope you post animation on Youtube!

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Re: New nova in delphinus<>animation new [Re: nytecam]
      #6073132 - 09/10/13 12:22 PM

I've got about 25 nights worth now myself, at some point I'll figure out what to do about them. 20, 10, 2 sec exposures at 6400 iso.

I did an entire summers worth of SS cygni a few years ago, caught three bursts... I never did do the animation!


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Re: New nova in delphinus<>animation new [Re: MtnGoat]
      #6074428 - 09/11/13 05:55 AM

Observed Nova Del 0115 11 Sept UT with my 12x36 binoculars. Estimated the mag to be 7.3-7.4--transparency not as good as my last observation and a little moonlight. Didn't notice any color but I don't see color very well.

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Olivier Thizy
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Re: New nova in delphinus new [Re: Special Ed]
      #6076554 - 09/12/13 09:00 AM

Hello,


I have been following the nova in spectroscopy with an Alpy 600 spectrograph on a small 85mm refractor since the begining. Weather is getting poor here but I have done some animation/graphs showing the changes.


See: http://www.spectro-aras.com/forum/viewtopic.php?f=5&t=682&start=110#p...

Graph:
[image]http://www.spectro-aras.com/forum/download/file.php?id=1087[/image]

2D color spectral evolution:
[image]http://www.spectro-aras.com/forum/download/file.php?id=1088[/image]


ARAS forum includes spectral observations from about 35 observers and multiple spectrographs with multiple resolution. Those spectra with scientifical interest are archived on ARAS database (more than 600 spectra) and are available for download so you can have a look at my spectra FITS file there:
http://www.astrosurf.com/aras/Aras_DataBase/Novae/Nova-Del-2013.htm


There is also an ARAS web page with explanation from Steve Shore, a professional astronomer who is helping us to better understand the astrophysics behind the scene. I have really enjoyed his explanations so far... :-)
http://www.astrosurf.com/aras/novae/Nova2013Del.html


This is really an exceptionnal object to follow up, specially in spectroscopy!

Cordialement,
Olivier Thizy


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MtnGoat
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Re: New nova in delphinus new [Re: Olivier Thizy]
      #6077031 - 09/12/13 01:37 PM

Yup, looking a leetle bit redder every night! Very cool. I love this thing!

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RobK
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Re: New nova in delphinus new [Re: Olivier Thizy]
      #6077695 - 09/12/13 08:44 PM

Phenomenal work Olivier, congratulations to you and all the other ARAS 'spectroscopists'! Great demonstration of how amateurs can concentrate their efforts and skills to produce unprecedented coverage and a scientifically-valuable archive.

Cheers -

Rob


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Dean Norris
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Re: New nova in delphinus new [Re: RobK]
      #6082511 - 09/15/13 05:47 PM

My latest magnitude estimations of the nova:

7.6 at 8 UT on 9/6/13
7.4 at 8:10 UT on 9/11/13
7.7 at 5:30 UT on 9/15/13

Last night I observed the nova with 7x50 binos, 9x50 finder and at 51x in my 10" f/6 newt. In the newt it had a red color which wasn't seen in the finder or binos. It's amazing how fast these changes occur. When the nova was brightest, I saw it's color as yellow.

Dean


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NJScope
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Re: New nova in delphinus new [Re: Dean Norris]
      #6091306 - 09/20/13 08:59 AM Attachment (29 downloads)

Here's the latest spectrum (19Sept2013) from Nova Del 2013 which continues to show dominant Balmer emission lines (Halpha, Hbeta, Hdelta and Hgamma).

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SStoffer
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Re: New nova in delphinus new [Re: NJScope]
      #6096156 - 09/23/13 01:33 AM

Long time, no see everybody! I had a very active summer observing just about everything. And the biggest event happened for me on August 16 with Nova Delphinus.

I have followed this nova for the past month because it is the first one I have ever seen. I finally got a chance this evening to observe it to see its color. It is red indeed as the spectrum in the last posting on this thread shows.

However, I was expecting it to be an even a deeper red. Can these novae appear like carbon stars when fading, at least part of the cycle? I sure would like someone else to answer this question.

Observing this object brings back memories when I had a chance in 1975 to see Nova Cygni. It was so notable an event our local weatherman one evening on television said there was a new star in the heavens. Unfortunately, he provided no chart to find it. Lack of current information (no internet in those days) available caused me to miss seeing it. If I only had been patient and used a star chart I could have easily seen it since it was so bright and near Deneb. I hope to live to see one that bright again.

-Stephen


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SStoffer
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Re: New nova in delphinus new [Re: SStoffer]
      #6096228 - 09/23/13 03:20 AM

On a second thought, since my mirror fully cooled down and star images are more focused, it does seem to appear as a carbon star. And staring at it makes it appear less red.

It is around magnitude 8.

-Stephen


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BrooksObs
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Re: New nova in delphinus new [Re: SStoffer]
      #6096585 - 09/23/13 10:47 AM

"Observing this object brings back memories when I had a chance in 1975 to see Nova Cygni. It was so notable an event our local weatherman one evening on television said there was a new star in the heavens. Unfortunately, he provided no chart to find it. Lack of current information (no internet in those days) available caused me to miss seeing it. If I only had been patient and used a star chart I could have easily seen it since it was so bright and near Deneb. I hope to live to see one that bright again." -Stephen

Might be a long wait. Although they occur quite randomly, there has been a decided lack of novae of 1st magnitude or brighter since the early 1940's. In fact, Nova Cygni in '75 is the sole example since I started observing back in the mid 1950's!

BrooksObs


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Special Ed
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Re: New nova in delphinus new [Re: BrooksObs]
      #6097557 - 09/23/13 10:23 PM

Hi,

Nova Del 2013 O210 24 September UT ~7.8 mag seeing and transparency above average. No moon. 12x36 IS II binoculars. No color noted at this magnification.


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John_G
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Re: New nova in delphinus new [Re: Special Ed]
      #6099463 - 09/24/13 10:40 PM

About 3 weeks since may last observation. My estimate tonight with my 90mm was 8.2 with comp stars 80 and 82, 9/25/13 at 2:00 UT. I didn't notice any red color that some have reported.

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Sasa
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Re: New nova in delphinus new [Re: John_G]
      #6099721 - 09/25/13 03:01 AM

My estimate from the same evening using 8x40 binoculars is the same:

9/25/2013 18:25UT V=8.2

BTW, here is the nova light curve based on my observations. One can clearly see a change in the trend:



Edited by Sasa (09/25/13 03:01 AM)


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Rich (RLTYS)Moderator
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Re: New nova in delphinus new [Re: John_G]
      #6099804 - 09/25/13 06:24 AM

Quote:

About 3 weeks since may last observation. My estimate tonight with my 90mm was 8.2 with comp stars 80 and 82, 9/25/13 at 2:00 UT. I didn't notice any red color that some have reported.




Observed N Del 2013 last evening (9/24) and estimated its mag at 8.0. I did take a good look at the nova with my 10" refl and at 38x I didn't see any color but when I increased magnification to 76x N Del took on a pale orange color.

Rich (RLTYS)


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Sasa
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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6102554 - 09/26/13 03:32 PM

Today I had a quick look at nova. It was between the clouds, but I had a feeling that it is much fainter than two days ago, may be the speed of fainting again changed. My estimate is

9/26/2013 18:55UT V=8.5


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John_G
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Reged: 01/18/10

Re: New nova in delphinus new [Re: Sasa]
      #6103191 - 09/26/13 10:48 PM

I had a look tonight with my 200mm. I didn't make an estimate but the color red was easy to see. As red as a lot of carbon stars I've seen.

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lamplight
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Re: New nova in delphinus new [Re: John_G]
      #6103422 - 09/27/13 01:46 AM

I noticed the red three days ago after not having seen it for a couple weeks. I was not expecting it, just was looking to do some practice magnitude evals (just starting, noob). Two nights ago when the seeing was not so good the outer red edge seemed far wider than the last two nights. I Get the sense, perhaps imagination, that the red is oozing into the black background.. Like its bigger than I can see. I wish I could see this through the Hubble or from somewhere free of atmosphere at higher magnification. I see a yellow white pinpoint center with this red surrounding it.. (All three nights in las 4 days). As I say, A couple of days ago the red part was larger, more visible. There was also more flicker so I'm not sure if it was just illusion.

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John_G
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Re: New nova in delphinus new [Re: lamplight]
      #6114669 - 10/03/13 08:03 AM

I had a look last night with my 200mm. Still somewhat red in appearance but not as intense as my last observation. My estimate was magnitude 9.0 with comp stars 90 and 95 at 2:00 UT 10/3/13.

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Rich (RLTYS)Moderator
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Re: New nova in delphinus new [Re: John_G]
      #6116603 - 10/04/13 06:18 AM

Maybe this is old news but Nova Del 2013 finally has a designation, it's V339 Del.

Rich (RLTYS)


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canukLX90
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Re: New nova in delphinus new [Re: John_G]
      #6117713 - 10/04/13 05:42 PM Attachment (24 downloads)

Image from the night of 03 October.
10 X 30 seconds at ISO 800 / modded Canon 450D / PowerNewt
at F 2.8 No processing other than RAW to TIFF conversion,
crop and stacking.

Still looks red but dimmer than my last posted image.

PJ


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A. Viegas
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Re: New nova in delphinus new [Re: canukLX90]
      #6119021 - 10/05/13 12:58 PM Attachment (21 downloads)

Here is an image from August 25th-- just to note the magnitude difference....

CPC1100 at ~F5.5 - Mallincam Xtreme 1 single 60 second exposure. No processing, just a screen capture.

Al


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nytecam
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Re: New nova in delphinus new [Re: A. Viegas]
      #6141432 - 10/16/13 06:02 PM Attachment (17 downloads)

My first shot tonight [Oct 16] of Nova Del for some weeks - data on image. It's faded noticeably - my est. m10.2 Inset 3s exp in hi-colour saturation shows a pink/reddish hue

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canukLX90
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Reged: 12/25/08

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Re: New nova in delphinus new [Re: nytecam]
      #6144922 - 10/18/13 01:37 PM

It will be interesting to see how low it will go!
With the earlier onset of nightfall it will be possible to
keep tabs on the nova as it moves further to east with each
passing day.

F2.8 with the 30cm! That must be some reducer (:

PJ


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brianb11213
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Re: New nova in delphinus new [Re: canukLX90]
      #6145337 - 10/18/13 06:08 PM

Quote:

It will be interesting to see how low it will go!



Apparently the pre-outburst magnitude was around 17.1 (V) (from survey images) & since the nova outburst mechanism is essentially non destructive we should expect the nova to return to mag. 17 or thereabouts over the next year or two.

Quote:

With the earlier onset of nightfall it will be possible to
keep tabs on the nova as it moves further to east with each
passing day.



Sorry I don't get it. The nova's position is becoming increasingly unfavourable until it reaches conjunction with the Sun in late January ... should still be observable to those of us in temperate northern latitudes, though, as it is around 40 degrees North of the ecliptic.


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Rich (RLTYS)Moderator
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Re: New nova in delphinus new [Re: brianb11213]
      #6146176 - 10/19/13 08:11 AM

Finally observed V339 Del last evening for the first time in weeks. Estimated mag 10.3 using comp stars 98 and 105.

Rich (RLTYS)


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nytecam
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Re: New nova in delphinus new [Re: canukLX90]
      #6147824 - 10/20/13 03:34 AM

Quote:

F2.8 with the 30cm! That must be some reducer (:
PJ


Yes - Meade f/3.3 FR cranked up to f/2.8 really sucks in the photons in my very brief exposures

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BrooksObs
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Re: New nova in delphinus new [Re: brianb11213]
      #6148025 - 10/20/13 08:49 AM

Quote:

Quote:

It will be interesting to see how low it will go!



Apparently the pre-outburst magnitude was around 17.1 (V) (from survey images) & since the nova outburst mechanism is essentially non destructive we should expect the nova to return to mag. 17 or thereabouts over the next year or two.





Likely it will take much longer than that to fully return to near minimum. Most common novae require roughly a decade to sink back close to pre-outburst levels. Some never make it all the way back.

Odds are that V339 Del, being a moderately "fast" nova, will remain within visual reach of larger amateur telescopes for many years to come as it slowly fades.

BrooksObs


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MtnGoat
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Re: New nova in delphinus new [Re: nytecam]
      #6152849 - 10/23/13 01:38 AM

I was just reading Burnhams about Nova Herc '34, a 'slow' nova. The long term light curve showed a steep drop at 100 days and a slow recovery of at least four mags to a last maximum prior to final fade.

I looked at the latest curve from AAVSO and so far it looks very similar. For the earlier nova it took about 100 days from the start of the sudden fall to hit its 2nd max.

Hmm


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Rich (RLTYS)Moderator
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Re: New nova in delphinus new [Re: MtnGoat]
      #6153021 - 10/23/13 06:14 AM

Observed V339 Del last evening, 10/22, with my 10" refl. Using comp stars 105 and 109 I estimated its mag at 10.6.

Rich (RLTYS)


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MtnGoat
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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6164697 - 10/29/13 02:15 PM

It's getting pretty faint... now finding the triangle I always use for locating it is becoming important! Still not too tough visually with the 10", but it's wild to watch it fade when it used to be the brightest thing in the field. I'll miss this guy, and will be fascinated to see what it does in coming months. I'm not sure how much longer I'll have access to it, another month?

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canukLX90
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Re: New nova in delphinus new [Re: Rich (RLTYS)]
      #6165696 - 10/30/13 03:40 AM Attachment (18 downloads)

Image from Oct. 14
10 X 30 seconds @ ISO 800 no processing other than stacking
and cropping / modded 450D DSLR and PowerNewt @ F2.8
Still red and fading slowly

PJ


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canukLX90
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Re: New nova in delphinus new [Re: canukLX90]
      #6172371 - 11/02/13 06:11 PM Attachment (13 downloads)

My latest image from 29 October. Not showing so much of a
red hue now.

PJ


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MtnGoat
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Re: New nova in delphinus new [Re: canukLX90]
      #6175449 - 11/04/13 01:18 PM

I noticed that too, last night! It seems to have happened in only a few days.

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old_frankland
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Re: New nova in delphinus new [Re: MtnGoat]
      #6178546 - 11/06/13 01:31 AM

At 11th magnitude, it's at about the limit of what I can image in my light polluted suburban location. Bit of a challenge to rotate the camera so the 2D spectra does not cross over field stars. Doesn't appear to have changed any compared to spectra recorded about a week ago. Eventually the nebulosity lines should begin to receed.

http://www.lafterhall.com/Nova-Del_spec-plot-text_20131102-0305ut_ferreira_00...


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MtnGoat
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Re: New nova in delphinus new [Re: old_frankland]
      #6216145 - 11/25/13 09:26 PM Attachment (9 downloads)

I finally got another peek last Friday night. It hasn't faded as much more in nearly three weeks as I thought it would, it's still easy in the 10".

Finding the magic triangle is tougher than when I started because there is a nearly identical one right next door sharing a corner star, and that has confused me a time or two. Since the nova quit being conspicuously bright, things got a bit trickier. First I find the triangle, then I look for the line of three stars connecting one side. If I see the little dipper shape connected to that line, I know I'm there!

August 18, 2013: 20 seconds, single frame, Canon T3, 6400 ASA, prime focus on a Meade 10" SCT.

Edited by MtnGoat (11/25/13 09:28 PM)


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