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New nova in delphinus

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#76 John_G

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Posted 16 August 2013 - 11:39 PM

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.

#77 nytecam

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Posted 17 August 2013 - 03:46 AM

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 :grin:

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#78 Rich (RLTYS)

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Posted 17 August 2013 - 06:27 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.

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#79 Hubert

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Posted 17 August 2013 - 07:15 AM

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

#80 SabiaJD

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Posted 17 August 2013 - 08:18 AM

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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#81 Gil V

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Posted 17 August 2013 - 08:38 AM

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

#82 dgg99

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Posted 17 August 2013 - 10:06 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...

Posted Image
Nova Delphini 2013 by digonzalez, in Flickr

#83 thewheel

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Posted 17 August 2013 - 01:10 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.

#84 Dean Norris

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Posted 17 August 2013 - 02:47 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.

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#85 AstroTatDad

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Posted 17 August 2013 - 05:03 PM

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.cloudynig...ber=6031460&...

I revisited it last night and touched it up some.

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#86 AstroTatDad

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Posted 17 August 2013 - 05:05 PM

Great stuff everyone :)

#87 EJN

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Posted 17 August 2013 - 06:06 PM

Image from last night, Canon A630

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#88 EJN

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Posted 17 August 2013 - 06:08 PM

Longer focal length, Canon S5

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#89 Octans

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Posted 17 August 2013 - 10:33 PM

The light curve is starting to look really interesting: http://www.aavso.org...OVA DEL 2013...

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

#90 jmandell

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Posted 17 August 2013 - 11:42 PM

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)

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#91 Joe F Gafford

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Posted 18 August 2013 - 03:48 AM

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

Joe

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#92 Louietheflyisme

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Posted 18 August 2013 - 05:17 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 :).

#93 Rich (RLTYS)

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Posted 18 August 2013 - 07:09 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)

#94 Tom Laskowski

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Posted 18 August 2013 - 07:45 AM

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

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#95 robin_astro

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Posted 18 August 2013 - 08:48 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-a...c.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.y...l/message/14643

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

Robin

#96 Rich (RLTYS)

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Posted 20 August 2013 - 05:23 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)

#97 Rich (RLTYS)

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Posted 20 August 2013 - 03:07 PM

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

Whats next for N Del 2013.

Rich (RLTYS)

#98 SabiaJD

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Posted 20 August 2013 - 03:56 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

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)



#99 SabiaJD

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Posted 20 August 2013 - 10:41 PM

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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#100 Nick Rose

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Posted 21 August 2013 - 12:02 AM

According to Steven Shore the Nova is between 3-4kpc.
This was via: http://www.spectro-a...&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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