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Observing >> Deep Sky Observing

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norden
sage


Reged: 09/08/08

Loc: Norden
New nova
      #6026418 - 08/15/13 02:22 AM

Discovered by Koichi Itagaki, Yamagata, Japan, using 0.18-m reflector + unfiltered CCD. This Nova was confirmed on the frames taken on August 14.750 UT using 0.60-m f/5.7 reflector + unfiltered CCD after discovery. Then CCD magnitude is 6.3.

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

Mikael Anderlund


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Sasa
professor emeritus


Reged: 11/03/10

Loc: Ricany, Czech Republic
Re: New nova new [Re: norden]
      #6027687 - 08/15/13 05:27 PM

Just saw it with 8x40. It is even brighter now, my estimate from 20:30UT is V=5.0. I could barely glimpse it with my eyes from my backyard.

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JonnyH
newbie


Reged: 02/24/11

Re: New nova new [Re: Sasa]
      #6027716 - 08/15/13 05:42 PM

What did I see? I observed a very bright flash and shortly after another lesser flash. I was perplexed...this morning I read about the nova in the same location. No has reported what I saw on the web. Is it even possible that I witnessed such massive explosions from the nova? I've been meteor shower watching lately...it wasn't one of those.

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GlennLeDrew
Postmaster
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Reged: 06/18/08

Loc: Ottawa, Ontario, Canada
Re: New nova new [Re: JonnyH]
      #6027734 - 08/15/13 05:52 PM

Johnny,
Novae do not 'flash' (and certainly not on and off) on scales of a second. Brightness changes of significance are far more gradual, measuring in minutes (or hours) while brightness increases immediately after the detonation. A brief flash in the sky is most commonly from a satellite or meteor.


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JonnyH
newbie


Reged: 02/24/11

Re: New nova new [Re: GlennLeDrew]
      #6027794 - 08/15/13 06:24 PM

I know those things to be true that's why it defies me. There was no movement to the event. My first skeptical thought was satellite or aircraft but the second bright flash was in the same location less than 10 seconds later. At first my brain said Supernova but then I thought "no way"
So while I understand why your comment is accurate I still know what I saw. I learned of the nova this morning when looking for explanations to the event. Still scratching my head for a good explanation.


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Peter Natscher
professor emeritus


Reged: 03/28/06

Loc: Central Coast California
Re: New nova *DELETED* new [Re: norden]
      #6027918 - 08/15/13 07:52 PM

Here's a link to the sky map showing exact nova location for observing with your binoc's.

http://www.universetoday.com/104103/bright-new-nova-in-delphinus-you-can-see-...

Edited by Peter Natscher (08/15/13 11:05 PM)


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AstroTatDad
Pooh-Bah
*****

Reged: 04/22/13

Loc: Los Angeles - San Diego
Re: New nova new [Re: Peter Natscher]
      #6028178 - 08/15/13 10:27 PM

Need some help from those that have seen it in a 8" scope. I did a sketch of it last night, but got a few comments saying it was not it, that was posted above the Nova. Please check out my sketch and report here http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/6028062/page...

Edited by AstroTatDad (08/15/13 10:28 PM)


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PJ Anway
Double-Star Observer
*****

Reged: 06/04/03

Loc: North Coast
Re: New nova new [Re: JonnyH]
      #6028633 - 08/16/13 07:12 AM

Jonny,

Perhaps it was an Iridium flare, they can look like you describe. Here is some info on them:

Iridium Flare


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rinalmj
sage
*****

Reged: 11/23/09

Loc: Saxonburg, PA
Re: New nova new [Re: PJ Anway]
      #6028722 - 08/16/13 08:45 AM

I saw a couple flashes last night and see them regularly. There are several causes that I know of: planes, fireworks (even very distant), flaring (from gas wells or plants), and lightning (again, even very distant)

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Special Ed
Postmaster
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Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: New nova new [Re: PJ Anway]
      #6028776 - 08/16/13 09:24 AM

Quote:

Jonny,

Perhaps it was an Iridium flare, they can look like you describe. Here is some info on them:

Iridium Flare




PJ is on to something here. I saw an iridium flare last night (9:32 PM EDT) go right through the Sagitta/Delphinus/Vulpecula area where the nova is located. Depending on Jonny's location, he may have seen it, too.

I located the nova last night after the iridium flare happened. I estimated its magnitude at ~4.9 at 0230 UT on 16 August by comparing it to Eta Sge and 29 Vul. Report and sketch here.


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Jeremy Perez
Carpal Tunnel
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Reged: 08/12/04

Loc: Flagstaff, Arizona, USA
Re: New nova new [Re: Special Ed]
      #6028901 - 08/16/13 10:48 AM

The nova was a straightforward, naked eye catch last night from my back yard. I was pretty wiped out & ready for bed when I went out to give it a shot, so I neglected to estimate magnitude. Nice to see the sketch with NGC 6905, Michael!

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Special Ed
Postmaster
*****

Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: New nova new [Re: Jeremy Perez]
      #6028986 - 08/16/13 11:43 AM

Thanks, Jeremy. Hope you get a chance to revisit with a higher energy level. I think forecast conditions here tonight will allow me a chance to see if I can spot it with the unaided eye.

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EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
Re: New nova new [Re: Special Ed]
      #6029167 - 08/16/13 01:07 PM Attachment (46 downloads)

This is an image I took last night with my Canon S5, constellation lines
added to Delphinus & the nova is arrowed.


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okieav8rModerator
I'd rather be flying!
*****

Reged: 03/01/09

Loc: Oklahoma!
Re: New nova new [Re: EJN]
      #6029444 - 08/16/13 03:51 PM

I'm headed up to my folk's farm this afternoon, and hope to get a look at it tonight.

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nytecam
Postmaster


Reged: 08/20/05

Loc: London UK
Re: New nova new [Re: okieav8r]
      #6029581 - 08/16/13 05:13 PM Attachment (22 downloads)

My lo-res spectrum of Nova Del [blue] in late dusk tonight with Altair spectrum [grey] for reference - note the weak Halpha and Hbeta in emission characteristic of a nova at outburst. Halpha should become dominant over the next week or so

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nytecam
Postmaster


Reged: 08/20/05

Loc: London UK
Re: New nova new [Re: nytecam]
      #6029805 - 08/16/13 07:51 PM Attachment (28 downloads)

My pic of nova fov - on Sloan DSS a faint ~m18 blue star seems centred on the nova

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Cotts
Just Wondering
*****

Reged: 10/10/05

Loc: Toronto, Ontario
Re: New nova new [Re: nytecam]
      #6030002 - 08/16/13 10:22 PM

I just caught it a few minutes ago in 15x70 binos. The limiting magnitude is about 3.5 here with Albireo barely visible and all the stars in Delphinus invisible naked eye. Seems about mag 4.0-4.5 in the binos and I have no doubt that folks can see it naked eye from darker skies....

Time of observation was 2013 08 17, 02h15m, UT

I'm going to take the 6" out to have a go to see its colour, if any....

Back soon...

Dave


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greenglass
scholastic sledgehammer
*****

Reged: 01/22/06

Loc: Hamilton. Ontario, Canada
Re: New nova new [Re: Cotts]
      #6030026 - 08/16/13 10:36 PM

in 7x50s it looks pale yellow

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blb
Post Laureate


Reged: 11/25/05

Loc: Piedmont NC
Re: New nova new [Re: Cotts]
      #6030037 - 08/16/13 10:44 PM

Quote:

I just caught it a few minutes ago in 15x70 binos. The limiting magnitude is about 3.5 here with Albireo barely visible and all the stars in Delphinus invisible naked eye. Seems about mag 4.0-4.5 in the binos and I have no doubt that folks can see it naked eye from darker skies....

Time of observation was 2013 08 17, 02h15m, UT



Way to go Dave, I too just came in from looking with my 10x50 binoculars. The limiting magnitude is about 3.5-4.0 here with Albireo barely visible and all the stars in Delphinus and Sagitta invisible to the naked eye. Remembering the approximate location and armed with my S&T Pocket Sky Atlas, I sat down in a chair in the back yard and started picking out the stars in the atlas. Having located the field of the nova, there was a bright star where none was shown in the atlas. Comparing this star to the magnitudes shown on the finder chart in Peter Natscher's above post, I would estimate the magnitude to be between 5.0-5.3, and the limiting magnitude for my binoculars was about 7.0 to maybe a little fainter.
Time of observation was 2013 08 17, 02h21m, UT


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Cotts
Just Wondering
*****

Reged: 10/10/05

Loc: Toronto, Ontario
Re: New nova new [Re: Cotts]
      #6030053 - 08/16/13 10:54 PM

Colour report. No question it is a very pale yellow. Not nearly as orange as Gamma Sge, (Mag 3.5, color index +1.56), nearby. It is distinctly yellower than Alpha Del (Mag 3.77, CI -0.04). Although too faint, for a true comparison, I think the nova is about as yellow-white as Altair (mag 0.93, CI +0.27). It seems to be about the same as Beta Del as well (mag3.63, CI +0.45).

6" MakNewt, using 50x, 100x and 130x. 2013 08 17, 02h 30m UT


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Cotts
Just Wondering
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Reged: 10/10/05

Loc: Toronto, Ontario
Re: New nova new [Re: Cotts]
      #6030064 - 08/16/13 11:01 PM

As for magnitude, there is an AAVSO chart that shows the star nearest to the nova to be 5.7 mag and the nova clearly has nearly a magnitude on it. Estimated Delta mag, (as if it were a wide double star) would be 0.7 mags. The nova is not as bright as the 5 main stars of Delphinus, the faintest of which, Epsilon Del, is mag 4.03. Eta Sge is mag 5.09 and is very similar to the nova.

Fun to be on the cusp of things...
Dave

Edit: Light curve....

Looks like it has peaked and is dimming past mag 5 this evening....

Dave

Edited by Cotts (08/16/13 11:08 PM)


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Special Ed
Postmaster
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Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: New nova new [Re: Cotts]
      #6030302 - 08/17/13 03:03 AM

Observed Nova Del 2013 at 0530 UT (8/17) through clouds with my 12x36 IS II's. The nova appeared about as bright as 29 Vul (4.8) which bumps it up 0.1m from last night. I guess the increase in magnitude has slowed way down.

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Robert Cook
sage
*****

Reged: 07/23/09

Loc: San Diego County, California
Re: New nova new [Re: Special Ed]
      #6032172 - 08/18/13 02:36 AM

Quote:

Observed Nova Del 2013 at 0530 UT (8/17) through clouds with my 12x36 IS II's. The nova appeared about as bright as 29 Vul (4.8) which bumps it up 0.1m from last night.




I agree, it appears just about as bright as 29 Vul...maybe a smidgen less, if anything. Its yellow coloration is pale but unmistakable in my 7x35 (old school) binocular.


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Rutilus
Carpal Tunnel


Reged: 12/17/10

Re: New nova new [Re: Robert Cook]
      #6032212 - 08/18/13 03:25 AM

Friday night (16th), inspite of moonlight, Nova was detactable as a naked eye object. Saturday (17th),
stronger moonlight, however the Nova was still visible to the naked eye.
With the telescope, colouration noted as off-white/pale yellow.


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Tyranthrax
sage


Reged: 04/22/13

Loc: Reno, NV
Re: New nova new [Re: Rutilus]
      #6032228 - 08/18/13 03:41 AM Attachment (30 downloads)

Is this it? I had a hard time following the instructions out there. namely because I am not sure with my diagonal to go left or right. What I did was went to eta sagitta, sao 105659 went hunting wsw and this was the brightest thing there in the area. I think it looked more yellowish orange than this photo shows. this look right to you guys though?

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norden
sage


Reged: 09/08/08

Loc: Norden
Re: New nova new [Re: Tyranthrax]
      #6032300 - 08/18/13 05:21 AM

I finally observed the Nova at 21:45 UT (8/17) through clouds with my Bino 10x50. The nova appeared about as bright as 22 and 24 Vul which is 5.2.

Edited by norden (08/18/13 05:21 AM)


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blb
Post Laureate


Reged: 11/25/05

Loc: Piedmont NC
Re: New nova new [Re: norden]
      #6032474 - 08/18/13 09:28 AM

Quote:

Is this it?...



Really? Are you serious? How could anyone tell without any field stars in the area to determine what it is? This image, if of a star, is enlarged to much to determin what it is.


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Centaur
Vendor
*****

Reged: 07/12/04

Loc: Chicago
Re: New nova new [Re: norden]
      #6032737 - 08/18/13 12:07 PM

I got to see the nova through a 9-inch scope last evening during a star party at Horner Park in Chicago. It was definitely the brightest object in its region. For those of us who are long time amateur astronomers, it was something akin to earning a merit badge. For newbies attending it was, "That's nice, now show us more of the Moon and Saturn."

Here's the related thread at the Chicago Astronomer website. I expect that by sometime on Sunday photos from the star party will be added: http://astronomer.proboards.com/index.cgi?board=StarParty&action=display&...


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Tyranthrax
sage


Reged: 04/22/13

Loc: Reno, NV
Re: New nova new [Re: blb]
      #6033133 - 08/18/13 04:07 PM

Quote:

Quote:

Is this it?...



Really? Are you serious? How could anyone tell without any field stars in the area to determine what it is? This image, if of a star, is enlarged to much to determin what it is.




easy it is the only thing that was near its region that color and brightness, if I tuned the gain up any more it was too bright that it drowned everything else up. I took several let me see if I have anything that caught anything in the area.


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Erik Bakker
Carpal Tunnel
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Reged: 08/10/06

Loc: The Netherlands, Europe
Re: New nova new [Re: norden]
      #6033141 - 08/18/13 04:12 PM

Had a wonderful view of the nova tonight through intermittent clouds at first and a clear sky with a slight haze later on. Surrounded by the beautiful starfields of Delphinus and Sagitta makes it a lovely nova to hunt down.

Tonight at 20.45 UT in the 7x42 FL's, color is yellowish/white to my eyes, with a Mv of 4.8, though it seemed to vary a bit. That brightness was obtained by using a customized AAVSO chart for my 7x42 binos, containing 4.8, 4.9 and 5.0 stars within the same binocular field.

Thanks AAVSO for offering such a wonderful tool .

Edited by Erik Bakker (08/20/13 02:47 AM)


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Tony Flanders
Postmaster
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Reged: 05/18/06

Loc: Cambridge, MA, USA
Re: New nova new [Re: Tyranthrax]
      #6033253 - 08/18/13 05:27 PM

Quote:

Quote:

Quote:

Is this it?...



Really? Are you serious? How could anyone tell without any field stars in the area to determine what it is? This image, if of a star, is enlarged to much to determin what it is.




easy it is the only thing that was near its region that color and brightness, if I tuned the gain up any more it was too bright that it drowned everything else up. I took several let me see if I have anything that caught anything in the area.




Out of context, there's no way to guess that star's brightness. It could be a 1st-magnitude star caught out of focus in a standard camera lens or a 15th-magnitude star caught with a CCD camera through a big telescope. And since it's pretty well burned out, there's no way to guess its color either.

If you want an identification, you need a field wide enough to include several other stars.


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LivingNDixie
TSP Chowhound
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Reged: 04/23/03

Loc: Trussville, AL
Re: New nova new [Re: Tony Flanders]
      #6033506 - 08/18/13 07:58 PM

Glad some folks are getting to see it! I have been under clouds since I got the push notification on the S&T app.

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Centaur
Vendor
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Reged: 07/12/04

Loc: Chicago
Re: New nova new [Re: norden]
      #6034383 - 08/19/13 11:35 AM

Okay, late last night Chicago Astronomer Joe finally uploaded photos of the Saturday night star party. It includes shots of the nova and even one of me: http://astronomer.proboards.com/index.cgi?board=StarParty&action=display&...

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Special Ed
Postmaster
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Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: New nova new [Re: Centaur]
      #6035475 - 08/19/13 10:14 PM

Cool pics, Kurt. Always neat to meet people you've only known from online. I hope to do the same some day with CN'ers here.

Here's my Nova Del report:

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.

There are multiple threads about the nova so I will post this report in more than one forum.


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Erik Bakker
Carpal Tunnel
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Reged: 08/10/06

Loc: The Netherlands, Europe
Re: New nova new [Re: Special Ed]
      #6035774 - 08/20/13 02:34 AM

Later in the evening of august 18th (ca. 21.00 UT) the brightness looked a bit variable, between 4.8 and 5.0.
Could have been the intermittent thin haze too

I observed the nova again last night (aug 19th, 20.00 UT) and estimated Mv around 5.1 in my FL 7x42 bino's. Conditions were good with very clean and clear skies, though with an almost full moon gradually more interfering.


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Robert Cook
sage
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Reged: 07/23/09

Loc: San Diego County, California
Re: New nova new [Re: Erik Bakker]
      #6039504 - 08/22/13 02:08 AM

I just observed the nova once again at 2013-08-22 05:52 (UTC) in my 7x35 binocular, and it appears to have faded to approximately magnitude 5.7, judging from its similarity in brightness to nearby star HD 194577 (BD+20 4559, HIP 100754).

Edited by Robert Cook (08/22/13 02:24 AM)


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cpman
member


Reged: 08/10/13

Loc: Austin, Texas, USA
Re: New nova new [Re: Robert Cook]
      #6041047 - 08/23/13 12:06 AM

I observed it today at around 9:50 PM CDT through my 10 inch dob. As other Robert Cook said, I would estimate it to be just slightly brighter than magnitude 6. It was just bright enough to produce very small diffraction spikes from the spider.
This is my first time viewing a nova. As other posters have stated, it clearly has a yellowish tone.

Edited by cpman (08/23/13 12:07 AM)


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After Hours
journeyman


Reged: 07/23/13

Loc: Vancouver, BC
Re: New nova new [Re: cpman]
      #6041958 - 08/23/13 02:15 PM

I observed the nova today at 1:00am PST on my new 10" Skywatcher Dob GOTO. My first telescope and this happens! Thank you EJN (star map) and others here on CN for helping a newbie find this amazing event!

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AstroTatDad
Pooh-Bah
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Reged: 04/22/13

Loc: Los Angeles - San Diego
Re: New nova new [Re: After Hours]
      #6042850 - 08/24/13 02:02 AM

Quote:

I observed the nova today at 1:00am PST on my new 10" Skywatcher Dob GOTO. My first telescope and this happens! Thank you EJN (star map) and others here on CN for helping a newbie find this amazing event!




Awesome, welcome to Cloudy Nights and congrats on the 10" SW.


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Erik Bakker
Carpal Tunnel
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Reged: 08/10/06

Loc: The Netherlands, Europe
Re: New nova new [Re: Robert Cook]
      #6042852 - 08/24/13 02:07 AM

Last night, aug 23 at 23 h UT, Mv had dropped to around 6.0 as observed in my 7x42 binos.

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blb
Post Laureate


Reged: 11/25/05

Loc: Piedmont NC
Re: New nova new [Re: Erik Bakker]
      #6044278 - 08/24/13 09:39 PM

Finally had a clear night tonight Sat. Aug. 24, 2013 and took my binoculars to the back yard for another look at the Nova. I was surprised to find that it had dimmed as much as it has so quickly. I would estimate that it was approximately magnitude 6.2 using my 10x50 binoculars at 9:05pm EDT. I think that is 0105 UT Aug. 25, 2013 if I did the math corectly.

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Special Ed
Postmaster
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Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: New nova new [Re: blb]
      #6044466 - 08/25/13 12:25 AM

Buddy, I was out just after you (10:00 PM EDT 8/24--0200 8/25 UT) with my 12x36 binoculars and estimated the mag at 6.2 also. I used HIP 100779 (6.4) and HIP 100754 (5.7) for comparison stars. I also made this animation of two telescope observations.

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Moondoggy
sage
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Reged: 03/17/08

Loc: Jack Daniels Country
Re: New nova new [Re: Special Ed]
      #6044535 - 08/25/13 01:25 AM

I have to agree with you guys. I looked tonight and found it getting very dim . But I am happy to say that this is my first atempt ever, to find my first Super Nova.

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Rich (RLTYS)
Post Laureate
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Reged: 12/18/04

Loc: New York (Long Island)
Re: New nova new [Re: Moondoggy]
      #6044777 - 08/25/13 08:16 AM

Quote:

I have to agree with you guys. I looked tonight and found it getting very dim . But I am happy to say that this is my first atempt ever, to find my first Super Nova.




Sorry this is a Nova, (possibly a "slow" Nova) not a Super Nova.

Rich (RLTYS)


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payner
scholastic sledgehammer
*****

Reged: 03/22/07

Loc: Bluegrass Region, Kentucky
Re: New nova new [Re: Rich (RLTYS)]
      #6045313 - 08/25/13 02:34 PM

First chance to see it was on 8/24. Pleased to have the opportunity to see it, but it was ~ magnitude 6. Nice treat, this nova!

Best,
Randy


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REC
Post Laureate
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Reged: 10/20/10

Loc: NC
Re: New nova new [Re: Erik Bakker]
      #6045457 - 08/25/13 04:13 PM

What is the closest main star and name in Delphinus? My scope is a GOTO and it will take me on a tour of the main stars in the constellation and would like to find it that way.

Thanks,

Bob


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norden
sage


Reged: 09/08/08

Loc: Norden
Re: New nova new [Re: REC]
      #6045467 - 08/25/13 04:18 PM

I looked tonight and found it very dim, magnitud 6.5

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Fuzzyguy
sage


Reged: 12/21/11

Loc: Colorado/Kansas
Re: New nova new [Re: REC]
      #6045652 - 08/25/13 06:10 PM

Bob, It's not very close to any of the main stars in Delphinis. Probably the closest star would be 29 Vul about 4*-5* east of the Nova. The closest main star in Del would be Saulocin/Alpha Del. The Nova's coordinates are:

R.A. 20 23 30.73 Decl. +20 46 04.1 according to AAVSO

If it's in your database, there is a 5.7 Mag star HR7811/HD194577/HIP100754/SAO88664 about a degree NE of the Nova.

Good luck!


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blb
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Re: New nova new [Re: Fuzzyguy]
      #6045757 - 08/25/13 07:03 PM

Quote:

What is the closest main star and name in Delphinus? My scope is a GOTO and it will take me on a tour of the main stars in the constellation and would like to find it that way.



I hope you have a right angle correct image finder on that goto scope, because if you can not identify the star field you will never know if you saw it or not. Even the S&T Pocket Sky Atlas will do. That was what I used with my binoculars to find it. There are some things that goto will not help with if you can't identify the stars in the field-of-view.


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Fuzzyguy
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Re: New nova new [Re: REC]
      #6045918 - 08/25/13 08:38 PM

Bob, Just thought of this. NGC 6905, the Blue Flash Nebula is about 1 degree SW of the Nova. The PN should be in your scope's catalog. Buddy is right about identifying the star field though. Even more as it fades, but if you look at some of the photos and sketches here on CN, you can do it. It was still pretty bright last night.

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Tyranthrax
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Re: New nova new [Re: Fuzzyguy]
      #6049416 - 08/27/13 06:27 PM

Due to the fires from ca I can't see jack Good luck get pictures you guys! Nothing but smoke down here and bad air quality.

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Re: New nova new [Re: Tyranthrax]
      #6055224 - 08/30/13 10:24 PM

I had another clear night tonight Fri. Aug. 30, 2013 and took my binoculars to the back yard for another look at the Nova. It has dimmed a now. I would estimate that it was approximately magnitude 6.9 using my 10x50 binoculars at 10:10pm EDT. I think that is 0210 UT Aug. 31, 2013 if I did the math corectly.

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blb
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Re: New nova new [Re: blb]
      #6061716 - 09/03/13 09:37 PM

I had another really good clear night tonight Tue. Sep. 3, 2013 and took my binoculars to the back yard for what may be close to my last look at the Nova. It has dimmed now to what I would estimate is approximately magnitude 7.2 to 7.4 using my 10x50 binoculars at 09:30pm EDT. It and the magnitude 8.0 star beside it were both averted vision targets. It has certainly been fun following this nova.

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Special Ed
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Re: New nova new [Re: blb]
      #6061929 - 09/03/13 11:39 PM

I observed Nova Del at 0230 9/04/13 UT (9:30 PM EDT 9/03)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. Transparency was good and I could see the nova with direct vision.

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Fuzzyguy
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Re: New nova new [Re: Special Ed]
      #6061966 - 09/04/13 12:12 AM

Through my 15X70 binoculars tonight, 09/03/13 10:15 PM CDT (03:15 08/04/13 UTC) Nova Del 2013 was still visible with direct vision as was the 8.0 M star to its NNE. It appeared to be about 2X brighter than the 8.0M from my backyard green/blue zone. Seeing was above average and transparency was average.

It was noticeably dimmer than my last ob on 09/01/2013 UTC.


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blb
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Re: New nova new [Re: Fuzzyguy]
      #6062353 - 09/04/13 09:29 AM

Quote:

It appeared to be about 2X brighter than the 8.0M from my backyard green/blue zone.



Wow! You do not know how fortunate you are. I have to travel 70 to 80 miles to get to a blue/green zone. My observations, where my home is located, are from a white zone. At best it is in a red zone on the edge of the white zone.


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Re: New nova<>animation new [Re: blb]
      #6063152 - 09/04/13 06:03 PM Attachment (8 downloads)

Here's an animation of 3 sketches I did of Nova Del 2013 over a 20 day period.

Edited by Special Ed (09/06/13 06:20 AM)


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Fuzzyguy
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Re: New nova new [Re: blb]
      #6064465 - 09/05/13 01:35 PM

Luckier than you think Buddy, I'm 5 minutes from blue/gray skies too most of the time. Of course, it doesn't matter when the clouds roll in about 8:00! It's been fun following the Nova, but now I'm on the Colorado Front Range in a white zone. By the time I get back, the moon will be shining bright and my skies will look a lot like yours anyway.

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blb
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Re: New nova new [Re: Fuzzyguy]
      #6066878 - 09/06/13 09:25 PM

I had another really good clear night tonight Fri. Sep. 6, 2013 and took my binoculars to the back yard for what may be the last look at the Nova with my 10x50 binoculars. It has dimmed now to what I would estimate is approximately 8th magnitude using my binoculars at 09:10pm EDT. It and the magnitude 8.0 star beside it were both about the same magnitude and both were averted vision targets. It has certainly been fun following this nova and I will miss seeing it with the binoculars.

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Special Ed
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Re: New nova new [Re: blb]
      #6067124 - 09/07/13 12:41 AM

Observed Nova Del at 0245 7 Sept UT with my 12x36 binoculars. Estimated mag is 7.3.

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blb
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Re: New nova new [Re: Special Ed]
      #6068402 - 09/07/13 07:24 PM

Wow Ed, did I miss it that much? I was having a hard time finding it in my light polluted sky. I thought I could see a single star with averted vision but when I got the star in my sweet averted vision spot they were both visible and looked the same magnitude. I guess I could be wrong because, like I said, I thought I could see a single star at first. You are probably more skilled than me in this, so I would go with your estimate. I will try again tonight if the conditions are good enough.

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Re: New nova new [Re: blb]
      #6069092 - 09/08/13 09:17 AM

Buddy,

I did not need averted vision to see the nova or the star just west (above) it. Transparency was very good that night and I don't have any light pollution. Perhaps you had high clouds along with your LP?

I'm no expert and estimating tenths of magnitude visually is tricky and subjective. The nova was definitely brighter than the other star (I'm talking about HIP100536 mag 8.0).

I haven't seen any other mag estimates for 9/7 UT to compare our estimates to. Any around?


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Special Ed
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Re: New nova new [Re: Special Ed]
      #6074427 - 09/11/13 05:53 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. Fading seems to have slowed to a crawl.

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Sasa
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Re: New nova new [Re: Special Ed]
      #6074519 - 09/11/13 07:42 AM

I'm observing the nova as frequently as possible. Did you notice, that it is much more orange/reddish now? Around its maximum it was pure white to my eyes, but now it is definitely different color. BTW, here is the light curve based on my observations:



Edited by Sasa (09/11/13 07:45 AM)


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Special Ed
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Re: New nova new [Re: Sasa]
      #6075049 - 09/11/13 12:57 PM

I haven't notice any color except bluish-white, but I usually don't see color very well. Others have reported bluish-white to start, changing to yellowish and now reddish.

What do the numbers on the X axis of your chart mean?

Edited by Special Ed (09/11/13 12:59 PM)


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Sasa
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Re: New nova new [Re: Special Ed]
      #6075114 - 09/11/13 01:32 PM

I called my girlfriend to show her the nice reddish color of nova which was quite obvious to me in my 63mm refractor at 21x. Especially in contrast with nearby V=8.0 magnitude star. But she could not see it neither...

JD on x-axis label stands for Julian Date.

Alexander

Edited by Sasa (09/11/13 01:33 PM)


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nytecam
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Re: New nova new [Re: Sasa]
      #6086014 - 09/17/13 01:26 PM

Here's my video clip of the nova/ spectrum over the summer

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dan777
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Re: New nova new [Re: Special Ed]
      #6096467 - 09/23/13 09:29 AM

Quote:

I haven't notice any color except bluish-white, but I usually don't see color very well. Others have reported bluish-white to start, changing to yellowish and now reddish.




Last night (9.22.13) at 120x it appeared yellowish-orange and brighter than its mag 8.0 neighbor star.


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Fuzzyguy
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Re: New nova new [Re: dan777]
      #6096634 - 09/23/13 11:13 AM

I viewed it last night with my 15x70 binoculars about 12:00 AM CDT (05:00 UTC). I didn't know what to expect as it had been several weeks since I'd seen it, but it was still there. It looked pretty close in magnitude to the 8.0 mag star to its north. It looked cool white from my location. Seeing was average and transparency was good with a waning gibbous moon.

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Special Ed
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Re: New nova new [Re: Fuzzyguy]
      #6097549 - 09/23/13 10:20 PM

Hello,

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


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Sasa
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Re: New nova new [Re: nytecam]
      #6097890 - 09/24/13 06:25 AM

Quote:

Here's my video clip of the nova/ spectrum over the summer




Nytecam, wonderful video, thanks. Somehow I missed your post and found it just now.


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blb
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Re: New nova new [Re: Sasa]
      #6098396 - 09/24/13 12:37 PM

I took my 10x50 binoculars out last night, Mon. Sept. 23 2013, 10:15 pm EDT. It was an exceptional night here in town, with a NELM of 4.3 in the constellation of Delphinus. Gamma Delphinus is mag. 4.3 and it was the faintest star in the neighborhood that I could see with averted vision, so it was a great night here at home in my white zone. Try as I might, I could only see one star in the location of the nova. I do not know which star I was seeing, the nova or the 8th magnitude star beside of the nova. I guess that I will have to get out a telescope to follow the nova any futher from my home.

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Fuzzyguy
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Re: New nova new [Re: blb]
      #6099662 - 09/25/13 01:06 AM

Tonight I started out with Nova Del 2013 instead of ending with it like last time. I had good looks both through the 15X70 binoculars and the C8. Between 02:00 UCT (9:00 PM CDT) and 2:30 UCT, the seeing and transparency were good with no moon and twilight ending. NELM in the area was better than 4.8 because 29 Vul was direct vision.

With the binoculars, the nova looked almost identical to the 8th mag star and cool white or maybe pale blue. The C8 showed the nova noticeably dimmer than the 8th mag star, but not nearly as dim as any of the 9th mag stars in the FoV. It was nicely framed at 127X and had a golden/yellow color.


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Re: New nova new [Re: Fuzzyguy]
      #6099807 - 09/25/13 06:30 AM

I looked at the nova last night with my 10" refl and at 38x no color was noted but at 76x the nova appeared a pale orange color.

Rich (RLTYS)


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lbsgville
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Re: New nova new [Re: Rich (RLTYS)]
      #6101916 - 09/26/13 09:36 AM

This it good news. Somehow I just heard about this and was wondering if I was going to be able to see it. I have 25X100 binos and 10 and 14" scopes so I'm sure I'll see it when I get home from work next week.

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blb
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Re: New nova new [Re: lbsgville]
      #6103104 - 09/26/13 09:46 PM

Well, instead of my binoculars, I took out my little AT66 refractor for a look at the nova tonight. I star hoped to the nova with my 24mm Panoptic eyepiece. This eyepiece gave me a four degree field-of-view at 17x. After locating the nova I switched to a 13mm Nagler eyepiece for a two degree fourty minute field-of-view at a magnification of 31x. The nova definitely appeared dimmer than the 8th magnitude star beside of it. To verify this, I defocused the stars to a point where the nova disippeared but the 8th mag. star was still visible. Not having a star dimmer than 8th mag. to interpolate brightness with, I used the 6.4 mag. and the 8.0 mag. star and tryed to extrapolate for the brightness of the nova. I came up with an approximate magnitude of 8.3 to 8.4 for the nova at 9:15pm EDT Thursday Sept. 26, 2013. The nova also appeared to be a gray to a pale blue color to me.

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Fuzzyguy
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Re: New nova new [Re: blb]
      #6113701 - 10/02/13 06:19 PM

Last night I had average seeing (2-3/5) and another night of better than average transparency. (about 7-8/10) Eta Sagitta was just visible naked eye with direct vision and obvious with averted vision.

In my 15X70 binoculars, the Nova was definitely dimmer than its 8th mag neighbor. It was pretty similar in magnitude to the 9th mag star to its west which is listed as HD 351956 or SAO 88584 in SkySafari. Seems to be dimming pretty fast now.


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Fuzzyguy
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Re: New nova new [Re: Fuzzyguy]
      #6129498 - 10/10/13 05:07 PM

Last night, the seeing and transparency were both good and after a look at a quasar, I came back to Nova Del 2013. In the 15X70 binoculars it was invisible. With the 8" SCT it was still there but had dimmed dramatically since I'd seen it last week. I viewed it with both the 24mm and 16mm EPs and in my opinion, it is getting close to 10th magnitude. I don't know how long it will be observable, but it seems to be dimming pretty fast now. I'd suggest anyone who wants to see this object should look now.

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Fuzzyguy
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Re: New nova new [Re: Fuzzyguy]
      #6162143 - 10/28/13 09:58 AM

For anyone still interested, Nova Del 2013 is still there. Tonight through the C8 with a 16mm EP at 127X it appeared just a little brighter than the 11.2 magnitude star a few arc minutes to its west. With patience, a chart down to about 12 magnitude and a good idea of where it should be, it will be visible in most telescopes from moderately dark skies.

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Re: New nova new [Re: Fuzzyguy]
      #6162263 - 10/28/13 11:05 AM

Great job Larry. It is nice to know that someone is still looking at this nova. I gave up because I did not have anything with magnitudes that faint to compare it with, so I am glad to hear it is still visible.

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