Jump to content

 

1825338873_SNRPN2021banner.jpg.68bf12c7791f26559c66cf7bce79fe3d.jpg

 

Bright(ish) supernova in NGC 3972


Guest
 Share

Recommended Posts

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

Link to comment
Share on other sites

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

Edited by acey
Link to comment
Share on other sites

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 ........ :eek:

Edited by John
Link to comment
Share on other sites

  • 3 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.