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Fancy Imaging/Observing a Magnitude 12 Supernova?

  • Keith g
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17 years 4 months ago #50224 by Keith g
Then read on... there is a Supernova at the moment in Galaxy NGC1058 in Perseus, close to Algol. Last week it was discovered at magnitude 13.8 on August 15th, and it has steadily brightened to mag12

Whats unusual is that you don't get Supernovae in external galaxies this bright..I've enclosed the original notice plus the follow up, it seems it may be a rare type of supernova. This one is called SN2007gr. I know some of you can image or observe this fella.....

AAVSO Special Notice #58

SN 2007gr in NGC 1058
August 16, 2007

As published in CBET 1034 by D. Madison and W. Li,
Supernova 2007gr was discovered at magnitude 13.8 by
KAIT on August 15.53 UT, and is currently at magnitude
13.5 on August 16.47. It is located in the bright
spiral galaxy NGC 1058, approximately 30 arcseconds
northwest of the nucleus.

The coordinates of the supernova are (J2000):
RA: 02:43:27.98
Dec: +37:20:44.7

We do not currently have a comparison stars for
this object, but a chart may be plotted using
VSP: www.aavso.org/observing/charts/vsp/
Please document any and all comparison stars
used to make visual estimates or perform
instrumental photometry. We note that NGC 1058
was host to two prior supernovae: SN1961V and
SN1969L.

AAVSO Special Notice #59

Update on SN 2007gr
August 19, 2007

Data for this supernova can now be submitted to the AAVSO
using the following Harvard Designation and/or name:
0237+36B SN 2007GR

Latest report from Martin Nicholson is that the SN is
at V=12.83 and continuing to rise. The two prior SNe
in NGC 1058 both reached a peak brightness about this
level, so SN 2007gr may not get much brighter.

CBET 1036 from Chornock et al. suggests that this supernova
is of Type Ib/c. Their preliminary spectroscopic calibration
cannot distinguish between these two types; however, it
is unlikely to be a Type Ia or any Type II.

Keith..

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17 years 4 months ago #50225 by michaeloconnell
Replied by michaeloconnell on topic Re: Fancy Imaging/Observing a Magnitude 12 Supernova?
Thanks the the heads up! Should be easy enough to capture that one - weather permitting of course!

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  • DaveGrennan
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17 years 4 months ago #50228 by DaveGrennan
Keith,

I had planned to capture this last night unfortunatly I ran outta time. This is top of my list for later weather permitting.

Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here

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