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Old 14-09-2014, 05:04 PM
PeterM
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Bright Supernova NGC1566

Bright supernova discovered at mag 14.9 in NGC1566 "The Spanish Dancer Galaxy" in the constellation Dorado. At 1am this beautiful galaxy will be about 30 degrees above the SE horizon.
An early morning object but worth the wait. Should make a great visual and imaging target, over to you folks.
Details below from the Bright Supernova Page at http://www.supernova.thistlethwaites.com/snimages/

ASASSN-14ha, ATEL 6460 discovered 2014/09/10.290 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in NGC 1566 at R.A. = 04h20m01s.41, Decl. = -54°56'17".0
Located 8".7 east and 1".0 south of the center of NGC 1566 (Discovery image)
Mag 14.6:9/10, Type II (z=0.005017) (References: ATEL 6461, 6466, 6467; SN 2010el)
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Old 14-09-2014, 08:00 PM
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astroron (Ron)
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Thanks Peter, I will try in a few days before moon rise.
I observed that galaxy about two weeks ago,it is one of my favourite glaxies
Cheers
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Old 16-09-2014, 05:21 PM
ausastronomer (John Bambury)
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Quote:
Originally Posted by astroron View Post
I observed that galaxy about two weeks ago,it is one of my favourite glaxies
Cheers
Mine too. I always pay this one a visit whenever I have the scope out and it is suitably placed.

Cheers,
John B
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Old 16-09-2014, 07:48 PM
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DavidTrap (David)
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Thanks for the heads up Peter,

I'll take the NABG CCD up to Leyburn on the weekend and take some images for photometry if I remember (the port might make me forget).

DT
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Old 17-09-2014, 01:37 AM
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Thanks Peter. I tried to see it with a 16" but did not succeed.

Last edited by glenc; 18-09-2014 at 10:36 AM.
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Old 18-09-2014, 09:49 AM
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Thanks for this Peter

I had a crack at this last night - its quite close to the central bulge of the galaxy so it will be a challenge to process. But that's half the fun isn't it.

I'll post some pics at the weekend or sooner if I get some free time

Pete
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Old 18-09-2014, 10:22 PM
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pvelez (Pete)
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here is a quick screenshot of the galaxy - 5 minute sub in L no calibration.

The SN is the bright star to the right of the galaxy core - there is a bright foreground star (I think) to the right of it.

I'm taking some images this evening so hopefully I can show something sharper at the weekend

Pete
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Old 18-09-2014, 10:31 PM
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Great work Pete!
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Old 19-09-2014, 07:43 PM
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Here is my quick take on it. 20 2.56s frames stacked in Regisatx 5. 16"GOTO Dob GSTAREX2 Camera. I could not see it visually.
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Old 20-09-2014, 12:04 PM
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I've made a little progress - but I need heaps more data. Because I end up imaging this early in the morning, the FWHM of the stars is blown out. So this isn't great - but its a start.

This is about 30 minutes of Lum, 40 mins G and B and only 15 minutes of R.

I resisted the temptation to push the stretch to bring out more of the spiral arms - if I did so, the SN would be lost in the core. You can see how blue the SN is compared to the foreground star immediately to its right.

All going well, I'll collect some better data tonight so stay tuned.

Taken from Coona with PW CDK12.5 with STX16803. RGB is binned x2. All subs 300 seconds

Pete
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Old 20-09-2014, 08:57 PM
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Great images Pete. I think this one is too close to the core for me.
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Old 24-09-2014, 08:27 PM
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mental4astro (Alexander)
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Question, would this SN still have been visible this last Monday night, 20th of September?
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Old 24-09-2014, 08:35 PM
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Quote:
Originally Posted by mental4astro View Post
Question, would this SN still have been visible this last Monday night, 20th of September?
Yes, I tried for it in the 16",but with a starlike nucleus and the star it is sandwiched in between makes it almost impossible for I would say any scope under say 20".
The close in star would make it very difficult to decide if you are observing the SN.
Cheers
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Old 25-09-2014, 10:20 AM
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mental4astro (Alexander)
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Thanks Ron. I had a look for it on Monday night, and like you, I couldn't make it out. Wasn't sure if it was still visible then.

Any thoughts about the SN being visible this weekend? If I can make it out bush this weekend I'll be chasing up 1566 all the same, SN or not - what a stunning galaxy!!! Really breath taking for me, If it were in any other constellation, it would be a showpiece on its own. Shame it needs to share the same bit of sky as the LMC...

Here's the sketch I did of 1566. I've posted a little write up on this on my blog: Galaxy NGC 1566
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Old 26-09-2014, 08:31 AM
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Alex, the nucleus of the galaxy is given at around 12 mag,the star that the supernova is sandwiched in between is 14.6 the Supernova is 14.5.
It was only discovered on the tenth of this month, and does not seem to have brightened much at all.
It will be a very difficult SN to observe visually because of the above constraints.
Best of luck anyway.
Cheers
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Old 26-09-2014, 10:18 AM
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I can assure you that it is a bugger to image too.

I am planning a few early mornings on this one as its such a beautiful galaxy - sadly, I need to suppress the core and spiral arms to bring out the SN. I might do 2 versions - one to feature the SN and the other to present the galaxy

Pete
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Old 19-10-2014, 02:45 AM
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WSAAG members viewed the supernova last night and it was still visible, about the same apparent magnitude as the (nearby) star next to it.

I am surprised it is lasting so long.

Regards,
Tony Barry
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Old 03-11-2014, 01:15 AM
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Supernova ASASSN-14ha still going strong, Oct 30th

In decent conditions, I managed to get 20 minutes of subs on NGC1566, and was happy to be able to clearly resolve the supernova between the nucleus and the neighbouring star. Estimated at roughly mag 15.0.

A pretty galaxy, but I'd not like to try and resolve the SN any closer to the nucleus!

20 minutes of 5-minute subs, 150mm f/5 Newtonian, EOS 60D, ISO640.
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Last edited by andyc; 03-11-2014 at 08:27 AM.
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Old 01-12-2014, 10:41 AM
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For the latest image from Terroux Observatory, I grabbed a shot of this celestial explosion

The Supernova

NGC 1566

Cool

Mike
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