Electronic Telegram No. 3773
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 2013ht IN MCG -02-28-21 = PSN J10555095-0951424
     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; and E. Christensen and S. M. Larson, Lunar and Planetary
Laboratory, University of Arizona, report the Catalina Real-time Transient
Survey discovery of an apparent supernova in public images from the Catalina
Sky Survey, with the discovery observation tabulated below:

 SN       2013 UT        R.A. (2000.0) Decl.      Mag.      Offset
 2013ht   Dec. 31.43   10 55 50.95  - 9 51 42.4   18.9    26".2 E, 6".0 S

The variable was designated PSN J10555095-0951424 when it was posted at the
Central Bureau's TOCP webpage and is here designated SN 2013ht based on the
spectroscopic confirmation reported below.

     E. Y. Hsiao, M. M. Phillips, and N. Morrell, Las Campanas Observatory; M.
Kasliwal, Carnegie Observatories; G. H. Marion, University of Texas, Austin;
C. Contreras, C. Gall, and M. D. Stritzinger, Aarhus University; and R. P.
Kirshner, Harvard-Smithsonian Center for Astrophysics, report that a near-
infrared spectrogram (range 810-2400 nm) of PSN J10555095-0951424 = SN 2013ht
was obtained on 2014 Jan. 1.30 UT with the FoldedPort Infrared Echellette
(FIRE) spectrograph on the 6.5-m Magellan Baade Telescope.  The spectrum shows
that 2013ht is a type-II supernova, approximately three weeks past explosion.
The near-infrared spectrum is similar to that of SN 2013gd at approximately 20
days past explosion.  The supernova redshift approximately matches the
redshift of the presumed host galaxy (VV 466) at z = 0.02775 (from the H I
Parkes All Sky Survey Final Catalogue, 2006; via NED).


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 January 6                   (CBET 3773)              Daniel W. E. Green