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Old 15-08-2013, 09:56 PM
psyke777
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Bright (Mag 6!) Nova in Delphinus

I can't see mention of this anywhere. Please forgive me if I am doing this wrong.

I saw this alert in my RSS feed: http://www.itelescope.net/sky-alerts...delphinus.html

And I found this thread at cloudynights: http://www.cloudynights.com/ubbthrea.../o/all/fpart/1

That thread states it might have a yellow-white colour. I was looking tonight with my ED80 and found a yellow-white star just below and to the right of Altair. Do you suppose I saw it?

Having a look at Stellarium I may have seen "γ Sge - HIP 98337". I will probably have another look tomorrow.
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Old 15-08-2013, 10:43 PM
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I took a few images tonight of the nova. On the pics it looked bluish. Many shots posted on the Deep Space Images forum.

Cheers,

Tom
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Old 15-08-2013, 11:09 PM
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Nice images Tom!
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Old 16-08-2013, 12:01 AM
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I just came on here to start a thread about it and see I've been beaten . Good on you Psyke777.

Just observed it at 12.30am thru 10x60 binoculars.
Easy catch and very bright.
Heading off from Sagitta drawing a line straight into Delphinus as per Ian Musgrave's (astroblogger) binocular chart directions (see link- fantastic, easy guide!).
Look for a very bright arc shape asterism, sort of H shaped too, slew left to a blank spot, very bright yellow star which is the nova makes up a triangle asterism. To the left of that is two pairs of bright stars close to each other. The nova sits between these two pairs and the arc asterism.
Very intense and bright yellow it is, wow!


http://astroblogger.blogspot.com.au/...delphinus.html


Nice work on those maps, Tom!

Last edited by Suzy; 16-08-2013 at 08:53 AM. Reason: typo.
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Old 16-08-2013, 12:13 AM
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I"m sure Jeanette won't mind if I post this terrific pic she just took tonight of the nova. It's a widefield view so gives a great idea of where it is.

As you can see in the picture here, the asterisms I was talking about in my post above are clearly visible here.

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Old 16-08-2013, 12:56 AM
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That's a great view of the area and a nice image too.
I'm going to try and hit it with the 50mm lens and see what I turn up.
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Old 16-08-2013, 08:37 AM
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Good luck, Jarrod.

There's lots of reports on facebook from people observing it last night putting it at mag.5 now. And that sounds spot on from when I observed it- I was looking for a much fainter star which threw me a bit. .
It looks as bright as some of those stars in that arc asterism I was talking about in my previous post.

Last night, people were seeing it naked eye from a dark site.
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Old 16-08-2013, 09:57 AM
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Hi,

I think this is a pre-discovery image when the Nova was around Mag 7. It's from a timelapse I shot on Aug 14th, at 13:27 UT (21:27 WST).

Location: Knox Gorge, Karijini Park, WA.
Settings: 14mm, iso 3200, 30 s, heavily cropped.

Thanks to Ian Musgrave for the heads up to check my images.

Colin

ps. the nova is directly below the N.
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Old 16-08-2013, 05:58 PM
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It's reported to be mag. 4.9 now.

I'm confused, can someone help me out please?

I just want to make sure I got the right star.
Tho I was quite satisfied I did as I plotted very carefully.
I'm confused with the images showing it as blue. I saw it as yellow.

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Old 16-08-2013, 06:08 PM
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Well I'm confident I got it in my pics, less confident I saw it with bins but it's possible.
In the pics it's a bluish/purple/pink but that is probably down to the lens.

I just look at it as it completes a row of 3 brighter double stars in a line, you can kind of see what I mean.
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Old 16-08-2013, 06:50 PM
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Here is just a start, I'm still going through the rest and want to process it better and find a good colour/size to add the tags on the pic but you get the idea.
It's a single 50 second sub, I have included the original and one I stacked with some darks but it came out even more noisy.

Also as you may see it's a shame I didn't get the meat of the other event in the pic, I wish I had seen it too as it looks a good 'un.
Also is that the Dumbell in there?
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Old 16-08-2013, 07:37 PM
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Hi Jarrod,
Thank you so much for the pics & trying to help me out. That first one in particular is helpful. I know exactly what you mean by the double stars too. And that's exactly where I saw it. But yellow.

Shame about missing that meteor.
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Old 16-08-2013, 07:56 PM
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Hi everyone,

Just read about this exciting event on apod, I can confirm naked eye sightings. It is clearly visible with the named eye from relatively dark sky with gibbous moon.

Awe inspiring to think that I have seen with my own 2 eyes the aftermath of the most violent explosion in the universe.

Awesome.
Cheers
Orestis
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Old 16-08-2013, 08:12 PM
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Not entirely sure, but I think I might have got it on my camera. Hard to tell because there is quite a bit of light pollution in the area where the star is, and my camera is just a point and shoot, but there is a bright spot that seems to correspond with the location when compared to the surrounding stars.

I have circled the part of the image where the star should be. Can't go out to take any more images as it has clouded over.
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Last edited by alphamone; 16-08-2013 at 08:44 PM. Reason: added image with hopeful nova capture.
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Old 16-08-2013, 08:28 PM
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Quote:
Originally Posted by Suzy View Post
It's reported to be mag. 4.9 now.

I'm confused, can someone help me out please?

I just want to make sure I got the right star.
Tho I was quite satisfied I did as I plotted very carefully.
I'm confused with the images showing it as blue. I saw it as yellow.

I visually compared it using 20x50 binoculars and AAVSO charts, and would put at slightly brighter than the 4.8 mag comparison star to the east of the star. My visual estimate would be 4.5 - 4.6 .

Also regarding colour I observe it as mostly a white colour.
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Old 16-08-2013, 09:29 PM
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Tonight I'll try and see it through the scope so maybe I can get some colour out of it and report back to you.

Anyway here is me messing up the Deep Space section :p
A few betterish pics there.
http://www.iceinspace.com.au/forum/s...d.php?t=110947
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Old 16-08-2013, 09:32 PM
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Comparison of last night and tonight:
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Old 16-08-2013, 10:36 PM
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A link to a good pre/post discovery animation was posted elsewhere....
(Original link) - credit E . Guido and N. Howes
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Old 17-08-2013, 12:15 PM
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Hi Orestis
I haven't seen you around for some time, great to hear from you!

You're observations were spot on. On the 15th it reached mag. 4.9
And last night (16th) had it at 4.5 (some say 4.4)! We were all excited on facebook as we were seeing it naked eye!

The latest light curve (17th) shows it has dropped down to 5. Bye bye star, was a brief visual appearance. So glad I nabbed it when I did.
Should still be a naked eye star from a dark site tho. But I couldn't believe I was seeing it despite the moon in the way and thru light pollution.

Regarding the colour- I asked around on facebook and people (like me) were seeing it as yellow. I guess it depends on our eye's perception.

Tom, that's a fantastic comparison image!
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Old 17-08-2013, 01:12 PM
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Here's the latest light curve (as of the 17th). Thanks Ian!

Astroblogger, Ian Musgrave has done a great report and pics taken with a point and shoot camera, see here.
Many of you will be familiar with Ian's work as he writes the very popular Southern Sky Watch web page.
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