[IAUC] CBET 2942: 20111207 : SUPERNOVA 2011ix IN MCG +05-4-59 = PSN J01263469+3137036

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                                                  Electronic Telegram No. 2942
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)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


SUPERNOVA 2011ix IN MCG +05-4-59 = PSN J01263469+3137036
     T. Boles, Coddenham, England, reports the discovery of an apparent
supernova (mag 18.0) on an unfiltered CCD image taken on July 31.071 UT with a
0.35-m reflector.  The new object is located at R.A. = 1h26m34s.69, Decl. =
+31o37'03".6 (equinox 2000.0, presumed), which is approximately 14".2 east and
5".1 north of the center of MCG +05-4-59 = PGC 5364.  The variable was
designated PSN J01263469+3137036 when it was posted at the Central Bureau's
TOCP webpage and is here designated SN 2011ix based on the spectroscopic
confirmation reported below.
     Additional magnitudes for 2011ix (from unfiltered CCD images unless noted
otherwise):  1991 Oct. 5, [20.5 (Digitized Sky Survey, red plate; via Boles);
1992 Sept. 30, [21.0 (Digitized Sky Survey, blue plate; via Boles); 2010 Oct.
17, [19.5 (Boles); Dec. 25, [19.5 (Boles); 2011 Aug. 1.481, V = 17.9 (Boles;
0.61-m Cassegrain reflector located at the Sierra Stars Observatory in Alpine
County, California; limiting mag 20.5; position end figures 34s.71, 03".7);
2.394, 18.4 (Joseph Brimacombe, Cairns, Australia; remotely using a 51-cm RCOS
telescope + STL11K camera at the New Mexico Skies Observatory, Mayhill, NM,
U.S.A.; position end figures 34s.70, 02".9; image posted at the following
website URL:  http://tinyurl.com/85cq32o); 3.461, 18.5 (Brimacombe); 4.446,
18.5 (Brimacombe); 5.465, 18.5 (Brimacombe); 7.470, 18.5 (Brimacombe; image
posted at website URL http://www.flickr.com/photos/43846774@N02/6027195265/);
8.465, 18.6 (Brimacombe); 10.395, 18.6 (Brimacombe); 10.917, 18.5 (V. Gerke
and S. Korotkiy, Ka-Dar Observatory, TAU Station, Nizhny Arkhyz, Russia; 40-cm
telescope + STL-11000M camera; position end figures 34s.72, 03".5, uncertainty
0".5; image posted at website URL http://tinyurl.com/6w5amcp); 11.048, 17.7
(Federica Luppi, Varese, Italy, 0.38-m f/6.8 reflector; position end figures
34s.70, 03".3; reference stars from CMC-14 catalogue; image posted at URL
http://www.astrogeo.va.it/pub/TOCP/PSN_P5364.jpg); 14.412, 18.6 (Brimacombe);
20.344, 18.7 (Brimacombe); 23.361, 18.9 (Brimacombe); 26.371, 18.9
(Brimacombe); 28.367, 18.8 (Brimacombe; image posted at website URL
http://www.flickr.com/photos/43846774@N02/6114369064/); Sept. 3.478, 18.9
(Brimacombe).
     Boles forwards a report by Avishay Gal-Yam et al. (posted at website URL
http://www.astronomerstelegram.org/?read=3633) that their spectroscopy with
the Palomar Observatory 5-m Hale telescope (+ DBSP spectrograph) on Aug. 28
shows good fits (via the Superfit supernova spectral-identification code of
Howell et al. 2005, Ap.J. 634, 1190) for 2011ix to type-II supernovae (e.g.,
SN 1993W) several months after explosion.


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                         (C) Copyright 2011 CBAT
2011 December 7                  (CBET 2942)              Daniel W. E. Green