Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

Observing >> Variable Star Observing and Radio Astronomy

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | (show all)
Gil V
professor emeritus


Reged: 09/09/12

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.

Post Extras: Print Post   Remind Me!   Notify Moderator  
dgg99
member


Reged: 11/07/04

Loc: Northern Spain
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


Post Extras: Print Post   Remind Me!   Notify Moderator  
thewheel
member


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.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Dean Norris
Carpal Tunnel
*****

Reged: 11/05/08

Loc: Santa Cruz, Ca
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


Post Extras: Print Post   Remind Me!   Notify Moderator  
AstroTatDad
Pooh-Bah
*****

Reged: 04/22/13

Loc: Los Angeles - San Diego
Re: Little Dolphin Nova from London! new [Re: SabiaJD]
      #6031467 - 08/17/13 06:03 PM Attachment (22 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.


Post Extras: Print Post   Remind Me!   Notify Moderator  
AstroTatDad
Pooh-Bah
*****

Reged: 04/22/13

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

Great stuff everyone

Post Extras: Print Post   Remind Me!   Notify Moderator  
EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
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

Post Extras: Print Post   Remind Me!   Notify Moderator  
EJN
Carpal Tunnel
*****

Reged: 11/01/05

Loc: 53 miles west of Venus
Re: Little Dolphin Nova from London! new [Re: EJN]
      #6031578 - 08/17/13 07:08 PM Attachment (22 downloads)

Longer focal length, Canon S5

Post Extras: Print Post   Remind Me!   Notify Moderator  
Octans
member


Reged: 08/13/09

Loc: Santa Barbara, CA, USA
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).


Post Extras: Print Post   Remind Me!   Notify Moderator  
jmandell
sage


Reged: 06/15/11

Re: Little Dolphin Nova from London! new [Re: Octans]
      #6032059 - 08/18/13 12:42 AM Attachment (23 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)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Joe F Gafford
Carpal Tunnel


Reged: 12/15/06

Loc: Denver, Colorado, US
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


Post Extras: Print Post   Remind Me!   Notify Moderator  
Louietheflyisme
professor emeritus


Reged: 06/17/13

Loc: Australia
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)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Rich (RLTYS)Moderator
Postmaster
*****

Reged: 12/18/04

Loc: New York (Long Island)
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)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Tom Laskowski
super member


Reged: 04/28/08

Loc: South Bend, Indiana, USA
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)


Post Extras: Print Post   Remind Me!   Notify Moderator  
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


Post Extras: Print Post   Remind Me!   Notify Moderator  
Rich (RLTYS)Moderator
Postmaster
*****

Reged: 12/18/04

Loc: New York (Long Island)
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)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Rich (RLTYS)Moderator
Postmaster
*****

Reged: 12/18/04

Loc: New York (Long Island)
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)


Post Extras: Print Post   Remind Me!   Notify Moderator  
SabiaJD
scholastic sledgehammer


Reged: 02/20/05

Loc: Clarks Summit, PA
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)




Post Extras: Print Post   Remind Me!   Notify Moderator  
SabiaJD
scholastic sledgehammer


Reged: 02/20/05

Loc: Clarks Summit, PA
Re: New nova in delphinus new [Re: SabiaJD]
      #6037505 - 08/20/13 11:41 PM Attachment (16 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

Post Extras: Print Post   Remind Me!   Notify Moderator  
Nick Rose
super member


Reged: 11/01/10

Loc: San Mateo, CA
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."


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | (show all)


Extra information
1 registered and 2 anonymous users are browsing this forum.

Moderator:  Rich (RLTYS) 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 12191

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics