[IAUC] CBET 2956: 20111228 : SUPERNOVA 2011jk IN UGC 3843 = PSN J07274305+2006217

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                                                  Electronic Telegram No. 2956
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 en eps.harvard.edu (alternate cbat en iau.org)
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Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2011jk IN UGC 3843 = PSN J07274305+2006217
     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; M.
Catelan, Pontificia Universidad Catolica de Chile; 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
 2011jk   Nov. 27.39   7 25 43.05  +20 06 21.7   19.2    10".5 W, 13".7 N

The variable was designated PSN J07274305+2006217 when it was posted at the
Central Bureau's TOCP webpage because the right ascension was originally
posted erroneously as 27' instead of the proper 25'; the variable is here
designated SN 2011jk based on the spectroscopic confirmation reported below.
Additional CCD magnitudes for 2011jk (unfiltered unless noted otherwise):
Mar. 5.20 UT, [20.6 (MLS); Nov. 28.319, 18.6 (Joseph Brimacombe, Cairns,
Australia; remotely using a 51-cm RCOS telescope + STL11K camera + luminance
filter at the New Mexico Skies Observatory near Mayhill, NM, U.S.A.; position
end figures 43s.13, 22".0); Dec. 24.42, 19.0 (MLS).  Brimacombe's image is
posted at website URL http://www.flickr.com/photos/43846774@N02/6421768255/.

     L. Tomasella, S. Valenti, S. Benetti, F. Bufano, M. Fiaschi, A.
Pastorello, and P. Ochner, Osservatorio Astronomico di Padova, Istituto
Nazionale di Astrofisica, on behalf of a larger collaboration, report that a
low-signal-to-noise spectrogram of PSN J07274305+2006217 = SN 2011jk, obtained
on Dec. 23.97 UT with the Asiago 1.82-m Copernico Telescope (+ AFOSC; range
350-820 nm; resolution 2.4 nm), suggests that it is a type-IIP supernova,
similar to SN 2005cs (Pastorello et al. 2009, MNRAS 394, 2266) at a couple of
months after the explosion.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2011 CBAT
2011 December 28                 (CBET 2956)              Daniel W. E. Green