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Observing >> Deep Sky Observing

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acr_astro
member


Reged: 01/16/13

Loc: Germany, Dusseldorf area
Supernova in M82
      #6327810 - 01/22/14 08:28 AM

Hi,

last night, a new possible supernova in M82 has been observed. Currently it has already a brightness of 11.7mag.

http://www.cbat.eps.harvard.edu/unconf/followups/J09554214+6940260.html

"2014 01 22.3955
L. Elenin (Lyubertsy, Russia) and I. Molotov (Moscow, Russia) confirm an apparent supernova PSN J09554214+6940260 in M82. Object visible on 4 (BVRI) images remotely taken at ISON-NM Observatory (Mayhill, NM, USA) with 0.4-m f/3 telescope + CCD (KAF09000) on Jan. 22.3955, 2014. Object located at 09h 55m 42s.15 +/- 0".13, +69d 40' 25".8 +/- 0".11 (UCAC-4) with magnitudes 12.91B (22.3955); 11.72V (22.4101); 11.31R (22.4061); 11.33I (22.4066). Nothing is visible at this position on the archive POSS and POSSII images. Image of PSN J09554214+6940260 available at http://spaceobs.org/images/TOCP/PSNJ09554214+6940260-20140122.png"


Further info as well here: PSN J09554214+6940260

Achim


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LivingNDixie
TSP Chowhound
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Reged: 04/23/03

Loc: Trussville, AL
Re: Supernova in M82 new [Re: acr_astro]
      #6327857 - 01/22/14 09:02 AM

That seems pretty bright. Hope this turns out to be true.

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geminijk
scholastic sledgehammer


Reged: 04/03/08

Loc: TN
Re: Supernova in M82 new [Re: LivingNDixie]
      #6327903 - 01/22/14 09:23 AM

How cool is this. I just might have imaged this SN on Sunday during the live Virtual Star Party on Sunday night.

John

Edited by okieav8r (01/22/14 05:08 PM)


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MikeBOKC
Post Laureate
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Reged: 05/10/10

Loc: Oklahoma City, OK
Re: Supernova in M82 new [Re: LivingNDixie]
      #6327909 - 01/22/14 09:24 AM

This could be a good one . . . M82 is right next door at 12 million LY. Might be reaching peak brightness this weekend as well . . . already scheduling a trip to the club dark site!

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MikeBOKC
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Reged: 05/10/10

Loc: Oklahoma City, OK
Re: Supernova in M82 new [Re: geminijk]
      #6327999 - 01/22/14 10:21 AM

According to everything on line so far the discovery images were all taken on Monday. If so you could be the actual discoverer. You might want to contact the Harvard folks with your image to see if they will credit you with it!

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Darren Drake
Carpal Tunnel
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Reged: 10/09/02

Loc: Chicagoland
Re: Supernova in M82 new [Re: MikeBOKC]
      #6328009 - 01/22/14 10:32 AM

I wonder if any of the neutrino detectors were able to detect anything. Should be interesting to look into.

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acr_astro
member


Reged: 01/16/13

Loc: Germany, Dusseldorf area
Re: Supernova in M82 new [Re: MikeBOKC]
      #6328012 - 01/22/14 10:33 AM

Hi John,

that is amazing news!

Achim


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IVM
Pooh-Bah


Reged: 01/07/08

Loc: Western New York
Re: Supernova in M82 new [Re: MikeBOKC]
      #6328028 - 01/22/14 10:41 AM

Bright one, and in a well-positioned Messier no less, in time for the season! And John, do let the pros know of your observation. Even if you are not recognized as the discoverer your "pre-discovery observation" must be of great interest.

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IVM
Pooh-Bah


Reged: 01/07/08

Loc: Western New York
Re: Supernova in M82 new [Re: IVM]
      #6328040 - 01/22/14 10:49 AM

Here is what appears to be a series of "pre-discovery" observations - this guy (in retrospect, I believe) traced it to how it was brightening from mag. 14.4 on January 15:

http://www.k-itagaki.jp/psn-m82.jpg

And no wonder the position seemed familiar to me - as it not infrequently happens, this supernova arose from a compact star cloud, in this case the one that contributes to the visually sharp NW corner of the central large bright region in this galaxy. (My last observation from 2012 is here:

http://idle-stargazer.blogspot.com/2012/08/clusters-in-m82.html


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MikeBOKC
Post Laureate
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Reged: 05/10/10

Loc: Oklahoma City, OK
Re: Supernova in M82 new [Re: IVM]
      #6328124 - 01/22/14 11:25 AM

Word is this is a Type 1a which originates with a white dwarf accreting matter from a binary companion. I am not sure what the usual brightening curve or lifetime would be, so if anyone knows please post.

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dgg99
member


Reged: 11/07/04

Loc: Northern Spain
Re: Supernova in M82 new [Re: MikeBOKC]
      #6328172 - 01/22/14 11:51 AM

Being a type Ia SN in such a nearby galaxy (11.5 Mly), I guess it has the potential to be very bright. If it is a "normal" Ia supernova it could be significantly brighter than SN 2011fe in M101, but the ATEL report says it is somewhat obscured by dust. They also say that the SN is ~12 days before maximum.

The SN is already bright at 11.5 mag, should be visible with any telescope!

It is surprising that it went undiscovered for a week...


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MikeBOKC
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Reged: 05/10/10

Loc: Oklahoma City, OK
Re: Supernova in M82 new [Re: dgg99]
      #6328190 - 01/22/14 12:01 PM

There is speculation now that it could go to mag 8, putting it in binocular range. How many tens of thousands of scopes will be aimed at M82 this weekend?

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IVM
Pooh-Bah


Reged: 01/07/08

Loc: Western New York
Re: Supernova in M82 new [Re: MikeBOKC]
      #6328231 - 01/22/14 12:16 PM

My estimate is a couple hundred

EDIT: I would love to add to the count myself but can't - clouds, clouds, clouds.

EDIT 2: The above estimate pertains to this planet only. Mike probably meant the universe, so no argument between us.

Edited by IVM (01/22/14 12:24 PM)


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tigerroach
Pooh-Bah


Reged: 08/13/08

Loc: Houston, TX USA
Re: Supernova in M82 new [Re: IVM]
      #6328322 - 01/22/14 12:54 PM

This is great news. Now for some clear skies...

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Khyron
member


Reged: 12/28/13

Loc: East Central Ohio, USA
Re: Supernova in M82 new [Re: Darren Drake]
      #6328327 - 01/22/14 12:56 PM

Quote:

I wonder if any of the neutrino detectors were able to detect anything. Should be interesting to look into.




For what it's worth:

"While the explosion undoubtedly produced neutrinos, the distance is great enough that any arriving at Earth-based neutrino detectors will likely be swamped by other sources. However, the relative closeness of M82 means that a variety of telescopes, both ground- and space-based, will be able to monitor its evolution over the next few days as the explosion fades. The data will help astronomers distinguish whether it truly is a type Ia (the galaxy it's in makes a core-collapse supernova more probable, but doesn't rule out white dwarfs), and possibly even tell whether one or two white dwarfs were involved." - ArsTechnica


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Jmax
professor emeritus
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Reged: 09/28/10

Loc: Alabama
Re: Supernova in M82 new [Re: geminijk]
      #6328334 - 01/22/14 12:59 PM

I took 20 minutes of exposure on M81/82 on Monday night, as well. I still haven't processed anything or even looked, so I can't wait to get home and see if I got it! If I did, I'll post my picture later tonight.

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acr_astro
member


Reged: 01/16/13

Loc: Germany, Dusseldorf area
Re: Supernova in M82 new [Re: Jmax]
      #6328410 - 01/22/14 01:30 PM

Hi all,

just coming in from the backyard. I observed it with the 10" f/5 Dobsonian! Really easy to find when you follow the line built by the two mag 10 stars near the Center. Best view was at 125x using the 10mm Celestron X-cel.

I did not estimate the brightness in detail, leaving this for stargazers taking Images. Definitely dimmer than the two "guiding stars".

CS!

Achim


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Telescopic
super member


Reged: 11/29/13

Loc: BC, Canada
Re: Supernova in M82 new [Re: acr_astro]
      #6328567 - 01/22/14 02:45 PM

Cool Stuff, next clear night I will look for it!

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Americal
sage
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Reged: 09/14/07

Loc: La Verne, CA
Re: Supernova in M82 new [Re: acr_astro]
      #6328735 - 01/22/14 03:57 PM

Already had a 2 night trip to my dark sky desert site planned for Thurs and Fri nights. Will def try to sketch M82 both nights. My luck/timing doesn't usually work this good, it'll probably cloud up. Woohoo.

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geminijk
scholastic sledgehammer


Reged: 04/03/08

Loc: TN
Re: Supernova in M82 [Re: Americal]
      #6328928 - 01/22/14 05:18 PM Attachment (69 downloads)

Here is a link to actual VSP video.
http://www.youtube.com/watch?v=ePOrciuULH0&feature=share

And here is a snag of just the M82 and the SN.


Edited by geminijk (01/22/14 05:19 PM)


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