Bright(ish) supernova in NGC 3972

[Guest]

A bright (14.5) mag supernova has been discovered in NGC 3972 a galaxy in UMa a link to create a chart is at

Charts: Finder charts for SN 2011by (AUID 000-BKB-410) may be plotted

by entering the name or the coordinates above into VSP:

Variable Star Plotter (VSP) | AAVSO

Note this appears to be a Type Ia 10 days before maximum so it could get much brighter.

Owen

[AstroNinja]

Thank you - have located it in SkyTools

Jon

[george7378]

I will definitely be taking a look (hopefully tonight) as it gets easier to view with my 10-inch scope.

[lukebl]

A few folk here have already captured it: http://stargazerslounge.com/heads-up/140218-new-bright-ish-supernova.html

[acey]

I observed it visually last night and have added my report in this thread:

http://stargazerslounge.com/imaging-sketches-unconventional/140753-supernova-2011by.html

[NickH]

Imaged it this evening. Magnitude estimation around 13.52

[acey]

I observed it again at 2.45 this morning (SQ 21.3). On the opposite side of the galaxy disc from the supernova (i.e. to south-west) are two stars of roughly equal brightness, and I judged the SN to be marginally brighter than those. They are listed in the Guide Star Catalogue as having V-magnitude 13.36 and 13.43, so I estimate the supernova as now being about 13.3.

The stars are:

GSC 0383600111 RA 11 55 32.80 Dec +55 16 07.2 mag 13.43

GSC 0383600118 RA 11 55 41.22 Dec +55 17 30.4 mag 13.36

http://gsss.stsci.edu/webservices/GSC2/GSC2WebForm.aspx

Edit: according to another thread it is estimated 13.2:

http://stargazerslounge.com/heads-up/140218-new-bright-ish-supernova.html#post1801922

[NickH]

13.3. is what Maxim DL and IRIS gave me last night, so that's pretty good estimation. The nearby ref star is a good pointer

[John]

1.3. is what Maxim DL and IRIS gave me last night, so that's pretty good estimation. The nearby ref star is a good pointer

1.3 - wow thats brightened up a bit

Assuming this is a typo this (at 13.3) will be in visual range of my 10" newtonian, if I get a good dark night. Not this weekend judging by the forecast ........

[luisevan]

Uau, that will be my next target. I never obser it visualy.

[NickH]

It's still lingering at around Mag 13.2. Imaged it with Faulkes North and from home for the past few weeks, will do a light curve at some point.