Supernova 2003gu in UGC 12331

This page is devoted to information on Supernova 2003gu in UGC 12331 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page.  Information on the original web pages for many of these images can be found on the updates and links web pages.

sn03gu_i.jpg Discovered by Mark Armstrong of the UK supernova search. This one is a slow burning type IIb found on the rise We have a DSS Photometry reference image made by Odd Trondal.  Icon generated from the LOTOSS discovery image.

The following is a list of images of this SN, in chronological order. Click on the name in the "Image Credit" column to see the image. Times and dates are in UT unless otherwise noted. If you know of any others, please tell me!
Image CreditDateMagFilterComments
Mark Armstrong image 2003/08/03.05117.2CRDiscovery, local mirror
Mark Armstrong image 2003/08/03.96517.2CRConfirmation, local mirror
Mark Armstrong image 2003/08/05.112CR local mirror
Peter Birtwhistle image 2003/08/14.97217.7R mirror
J. Nicolas image 2003/08/19.96116.6CR
JM Llapasset image 2003/08/22.11416.5CR
C. Dupuy image 2003/08/22.95116.6CR
C. Dupuy image 2003/08/25.90116.3CR
J. Nicolas image 2003/08/26.92716.2CR
Jean-Yves Beninger image 2003/09/01.63917.0C
J. Nicolas image 2003/09/04.89716.4CR
JM Llapasset image 2003/09/12.82616.6CR
J. Nicolas image 2003/09/15.85817.0CR

If you have observations of this Supernova, please send them to Use this VSNet data query to see what information has been reported so far.
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David Bishop
Last modified: Mon Sep 15 13:07:55 EDT 2003