Electronic Telegram No. 3315
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2012gl IN NGC 3153 = PSN J10125032+1240567
     T.-W. Chen, R. Kotak, and M. Fraser, Queen's University, Belfast, report
that a spectrogram (range 330-975 nm; resolution about 1000) of SN 2012gl (cf.
CBET 3302) was obtained on Nov. 22.21 UT with the 4.2-m William Herschel
Telescope (+ ISIS).  Cross-correlation with a library of supernova spectra via
the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666,
1024) shows that SN 2012gl is an old type-Ia supernova, between two and three
months after maximum, in NGC 3153 (z = 0.009).  The spectrum of 2012gl best
matches those of several normal type-Ia supernovae such as SN 2007co and SN
1991M.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2012 CBAT
2012 November 27                 (CBET 3315)              Daniel W. E. Green