Electronic Telegram No. 3014

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 2012Z IN NGC1309

Further to CBET 2929, S. B. Cenko, W. Li, and A. V. Filippenko report the
LOSS discovery of an apparent supernova on unfiltered KAIT images:

 SN       2012 UT       R.A. (2000.0) Decl.      Mag.      Offset
 2012Z    Jan. 29.15   3 22 05.35  -15 23 15.6   17.6    14".6 W, 43".1 N

Additional CCD magnitudes for
2012Z:  Jan. 26.17 UT, [18.6 (KAIT); 31.164, R = 15.6 +/- 0.2 (J. Brimacombe,
Cairns, Australia; remotely using a 51-cm RCOS telescope + STL11K camera + red
filter at the New Mexico Skies Observatory near Mayhill, NM, U.S.A.; position
end figures 05s.39, 15".2).  Brimacombe's image is posted at the following
website URL:  http://www.flickr.com/photos/43846774@N02/6798382185/.

     Samuel Meyer, Harvard University; Kimberly Emig, University of Hawaii at
Hilo; and Catherine Kaleida and Eric E. Mamajek, Cerro Tololo Inter-American
Observatory, report on preliminary BVRI photometry of PSN J03220535-1523156 =
SN 2012Z, taken with the SMARTS 1.0-m telescope (+ Y4K camera) at Cerro Tololo
in non-photometric conditions (light cloud), using relative photometry
(uncertainty +/- 0.1 mag) via the neighboring photometric standard star 2MASS
J03220561-1522352 = UCAC3 150-008318, with Landolt BVRI photometry taken from
Ganeshalingam et al. (2010, Ap.J. Suppl. 190, 418):  Jan. 31.1289 UT, R =
16.6; 31.1315, R = 16.6; 31.1343, V = 16.4; 31.1383, B = 16.2; 31.1417, I =
16.2; 31.1467, I = 16.2; 31.1500, B = 16.2; 31.1535, V = 16.2.

Host galaxy info: vel= 2136 km/s ; 2.2' x 2.0'; 11.97mag; SA(s)bc

SN type info: Ia

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