New Possible Supernova in NGC1365

[Park123 (Stu)]

Hi all,
I wanted to let people know of a new possible supernova that has just been discovered. Even though I didn’t discover it I did help in confirming the new target.It was discovered by A. Klotz on behalf of the TAROT Collaboration.
It is in NGC1365 a 9.5 mag fantastic looking galaxy in Fornax.
Here is my confirming image at this link

http://www.bosssupernova.com/confirmingimages.htm

It currently sits at mag 15.10 and rising fast. This could be the supernova of the year and makes a fantastic target for astro imagers.
This new target will be typed by the professionals in the next day or so and if it is a type Ia could reach a peak mag of 12.5-13 well in range of small telescopes.
Bob Evans found supernova 2001du in this galaxy which was confirmed by Greg Bock a BOSS member.
It seems the BOSS group always get second with discoveries in this fine galaxy!!!!!

This will be a great target to follow in the coming months


Stu Parker


For BOSS-Backyard Observatory Supernova Search

[astroron (Ron)]

Should be a beauty Stu
Thanks for letting us know .
Cheers

[andyc (Andy)]

Very exciting indeed! I'll look forward to trying to find this if it brightens up a bit

[Nico13 (Ken)]

Thanks Stu, a good confirming shot.

Was just looking at Fornax last night on TheSky6 for upcoming targets over the next few months and this galaxy was put on my list so now I'm doubly sure to take a look and some images.

[jjjnettie (Jeanette)]

Excellent news.

[mental4astro (Alexander)]

One to hunt down visually from home! Will also provide a gauge for viewing conditions.

Many thanks for the posting Stu.

[Terry B]

I tried last night hoping to take a spectra of it but there was too much cloud. Same forecast tonight. Hopefully it clears soon.

[Paul Haese]

I started shooting this a couple of weeks ago and there was no sign of it then. Missed it by that much as max would say. Thanks for the heads up.

[Rob_K]

Originally Posted by Park123

Hi all,
It currently sits at mag 15.10 and rising fast. This could be the supernova of the year and makes a fantastic target for astro imagers.
This new target will be typed by the professionals in the next day or so and if it is a type Ia could reach a peak mag of 12.5-13 well in range of small telescopes.

An ATel has been posted, indicating that from a spectrum obtained on 28.53 Oct it is a young type 1a supernova about 11 days from maximum:
http://www.astronomerstelegram.org/?read=4525

Cheers -

[lepton3 (Ivan)]

This is a very large photogenic galaxy. Even at f/5 it is bigger than the sensor in my Atik320E camera.

Full moon is probably not the best time for a pretty astro image, but give it a week or two and I expect we will see some amazing images.

Meanwhile, if the weather cooperates, I will try an image tonight through an R filter for photometric purposes.

-Ivan

[avandonk]

Took a few shots centred on NGC1387 60sec lum, unguided. There was a full Moon present! I did not bother with darks or flats.

Here is a full res single exposure 3MB

http://d1355990.i49.quadrahosting.co...10/ngc1387.jpg


Below are a few Registar images to show where the SN is.


Bert

[lepton3 (Ivan)]

Here's an image of the PSN fresh from the 'scope. A total of 1hr exposure at f/5.

The R filter was mandatory with the full moon. I measure the R Mag at 14.2

This SN is rapidly rising. Over the 1 hr it brightened by 0.025 mag.

-Ivan

[avandonk]

Here is a stack of ten 60s images corrected for darks and flats. 4MB

Also with a map below.

http://d1355990.i49.quadrahosting.co...0/ngc1387_.jpg

Bert

[Paul Haese]

Just for comparisons here is some data I shot on the 14th of October. With later shots you can doa blink and see where the SN is located. I hope this is helpful to you guys.

edit, from my image it looks like this might have been a blue giant that exploded. There appears to be a faint blue star in my image in the same position.

[Merlin66 (Ken)]

Here's a copy of the NGC 1365 sheet from Gregg Thompson's SN Search charts. (One I checked for him in the early 1980's)

[Greg Bock (Greg Bock)]

Yes, i just missed out on finding this one the day before it was discovered.
I was imaging SN target galaxies in the area nearby, but high winds and cloud forced me to close up before i resched NGC1365...doh....very annoyed!

It would have been fantastic to have discovered this one after doing the confirmation of 2001du for Bob 11 years ago...oh well, i'll just have to keep monitoring it and hopefully get the next one...

[Rob_K]

Originally Posted by Paul Haese

Just for comparisons here is some data I shot on the 14th of October. With later shots you can doa blink and see where the SN is located. I hope this is helpful to you guys.

edit, from my image it looks like this might have been a blue giant that exploded. There appears to be a faint blue star in my image in the same position.

Good stuff Paul - I created an animation using your shot & Steve's. Yours doesn't appear to show anything at the position but this is valuable anyway as you have stars in the image down towards mag 18, maybe dimmer if you really searched.

Cheers -

[Paul Haese]

Cool Rob.

The blue star I was talking about is just a tad off to the lower right. That star came out of that "vacant space".

[Terry B]

Despite crappy cloud I was able to get 30 min of cloud affected spectra of this tonight. Shows broad absorptions.
Cheers
Terry

[Merlin66 (Ken)]

Terry,
Well done!
Maybe noisy, but it clearly shows the deep silicon absorption around 5900A.
The attached illustration shows the different "markers" used to identify Type I and Type II SN.