Supernova 2009hm in NGC7083

PeterM · #1 19-07-2009, 10:41 AM

Hi all,

Yesterday Stuart Parker from New Zealand discovered his 2nd Supernova (in less than a month).

The galaxy is NGC7083, a beatiful barred spiral galaxy in Indus - well placed for follow up, up around 6pm Brissy time. The supernova is 14 arc seconds south of the nucleus (fairly close but quite obvious), around mag 15 and may well brighten.

Colin Drescher and I were able to assist with positional and magnitude estimates as well as a confirmation image from myself (attached).

I have no doubt Stuart will be posting more about the discovery here on IIS along with a colour image as soon as possible.
The supernova was also independently discoverd by Berto Monard from South Africa.

A hearty congratulations to Stuart.
http://www.rochesterastronomy.org/snimages/

Stuart's recent SN in NGC134 has had follow up radio observations that in short note - IAUC 9056 (these are International Astronomical Union Circulars) "Detection of radio emission near position of type 2b SN2009gj with VLA radio telescope. Measured position of radio source is in good agreement with optical position" (these were measured by Colin Drescher & Steve Quirk - good one guys) ends ... "Further study at all wavelength bands especially radio and Xray is warranted. VLA observations are continuing."

So yes, amateur astronomers can still play a huge role in astronomical discovery and the science that comes from that.
PeterM.

coldspace · #2 19-07-2009, 12:20 PM

Excellent work Stuart and Peter / Collin for back up support.
Nice bright one, you guys are on fire!!!
I think its unreal part of astronomy, discovering new things that no one on earth has seen before.
Keep up the good work.

Regards Matt.

Phil · #3 19-07-2009, 05:35 PM

Great stuff well done.
Phil

CometGuy · #4 19-07-2009, 05:36 PM

Peter,

Congratulations to Stuart.

Peter, I was expecting to read about your #4

Great local effort none-the-less from Peter and Colin.

T.

Kevnool (Kev) · #5 19-07-2009, 10:04 PM

Congrats all the persistance and dedication has and will allways pay off.
Cheers Kev.

Jen · #6 19-07-2009, 10:09 PM

wooohooo great stuff

Park123 (Stu) · #7 25-07-2009, 12:15 AM

Hello all,
Once again many thanks to Peter Marples and Colin Drescher for helping me with this discovary it was another great team effort.I managed a couple of images a few days ago of the SN not real good as the seeing conditions were poor but the SN shows up well.
Also many thanks for all your kind comments it is great to hear all your feedback!!!

Stu

DavidU (Dave) · #8 25-07-2009, 12:24 AM

another SN ! Jeez, thats impressive.
There is some major stuff getting posted here

coldspace · #9 25-07-2009, 07:24 PM

Quote:

Originally Posted by Park123

Hello all,
Once again many thanks to Peter Marples and Colin Drescher for helping me with this discovary it was another great team effort.I managed a couple of images a few days ago of the SN not real good as the seeing conditions were poor but the SN shows up well.
Also many thanks for all your kind comments it is great to hear all your feedback!!!

Stu

Hi Stu,

Very nice deep sky image showing a rather bright S/N. Post a copy of your image and discovery in the deep sky section.
We wouldn't want one of these going off in our part of town.
I am lucky to know Peter as well and he has been helping me out with my observatory design. His enthusiasm is top shelf with his work and assisting others with theirs.
What a nice photo for your wall.
Hopefully Mike ( iceman) might put one of your images of this S/N up on the astronomy picture of the week. Something different.

Regards Matt.

Ric · #10 26-07-2009, 01:04 AM

Great stuff Stu, you are certainly having a great run. And now for the hat-trick.

The colour image is a beauty as well. It really show the SN up fantastically.

Cheers

Benno85 (Ben) · #11 26-07-2009, 07:32 PM

That, is the single most surreal image I have seen yet. We all here of the light years and incomprehensible scale of the universe, but to actually witness a live event like that is truly amazing. Jealous?? YES I AM!!!

Keep it up mate

Spanrz (Brett) · #12 21-09-2009, 09:44 PM

Phenomenal stuff... OK, I gotta ask the mathematical question.

How long ago (years), did this supernova actually happen? (How many lights years is it away from us?)

mithrandir (Andrew) · #13 21-09-2009, 10:17 PM

Quote:

Originally Posted by Spanrz

Phenomenal stuff... OK, I gotta ask the mathematical question.

How long ago (years), did this supernova actually happen? (How many lights years is it away from us?)

If I understand it http://nedwww.ipac.caltech.edu/cgi-b...erivedValues_0
puts NCG7083 somewhere between 41 and 44 Megaparsecs. A parsec is about 3.26 light years so averaging that is about 138 million years ago.

ngcles · #14 21-09-2009, 11:54 PM

Hi Stu, Peter & Colin & All,

I dips me lid again to you guys -- well done.

For those out there who think these guys (particularly Stu) is lucky to pick up four in a year (though the year isn't over yet), think again.

These discoveries are down to a being methodical, persistent, exacting, patient ... and also a little bit of luck. It's not so much about just happening to be in the right place at the right time, but looking (imaging) in the right place regularly and frequently ... and knowing exactly what to look for.

Congratulations fellas -- richly deserved.

Best,

Les D

renormalised (Carl) · #15 22-09-2009, 12:04 AM

Not only that, but given the average distance of those values, the galaxy is 25.52Kpc across (83,201.9ly). Eyeballing it, the supernova appears just under a 10th of the galaxy's width away from the centre, so it's roughly 8320ly from the centre of the galaxy.