Electronic Telegram No. 2918
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 2011ih IN UGC 1774 = PSN J02182782+0533165
     S. Howerton, Arkansas City, KS, U.S.A.; A. J. Drake, S. G. Djorgovski,
A. Mahabal, M. J. Graham, and R. Williams, California Institute of Technology;
J. L. Prieto, Princeton University; M. Catelan, Pontificia Universidad
Catolica de Chile; R. H. McNaught and G. Garradd, Australian National
University; E. C. Beshore and S. M. Larson, Lunar and Planetary Laboratory,
University of Arizona; and E. Christensen, Gemini Observatory, report the
discovery of an apparent supernova in public images from the Mount Lemmon
Survey (MLS).

 SN       2011 UT       R.A. (2000.0) Decl.      Mag.      Offset
 2011ih   Nov. 19.12   2 18 27.82  + 5 33 16.5   19.5    7".1 E, 3".4 N

The variable was designated PSN J02182782+0533165 when it was posted at the
Central Bureau's TOCP webpage and is here designated SN 2011ih based on the
spectroscopic confirmation reported below.  Additional CCD magnitudes for
2011ih:  Nov. 1.34 UT, 19.4 (MLS); 21.184, 18.4 (Joseph Brimacombe, Cairns,
Australia; luminance filter presumed; position end figures 27s.64, 16".4;
image posted at URL http://www.flickr.com/photos/43846774@N02/6376386519/).

     S. Valenti, A. Pastorello, S. Benetti, L. Tomasella, F. Bufano, and P.
Ochner, Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Padova,
on behalf of a larger collaboration, report that a low-signal-to-noise
spectrogram of PSN J02182782+0533165 = SN 2011ih, obtained on Nov. 20.93 UT
with the 1.82-m Copernico Telescope (+ AFOSC; range 340-790 nm, resolution
2.2 nm), shows that 2011ih is a type-II supernova at a redshift z = 0.030.  A
narrow component of H_alpha is also visible, superimposed on the broad P-Cyg
profile, which is probably due to the contamination of an H II region in the
host galaxy.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2011 CBAT
2011 November 23                 (CBET 2918)              Daniel W. E. Green