Electronic Telegram No. 1336

Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) CBAT@CFA.HARVARD.EDU (science) URL http://cfa-www.harvard.edu/iau/cbat.html

SUPERNOVA 2008bt IN NGC 3404

Independent discoveries have been reported of an apparent supernova on
unfiltered CCD images:  on Apr. 13.23 UT by D. Winslow, W. Li, and A. V.
Filippenko, University of California at Berkeley, via LOSS/KAIT images (cf.
CBET 1322); and on Apr. 14.548 by K. Itagaki, Teppo-cho, Yamagata, Japan,
using a 0.60-m f/5.7 reflector (communicated by S. Nakano).  Discovery data
are tabulated below:

2008 UT          R.A. (2000.0) Decl.     Mag      Offset           Observer
Apr. 13.23    10 50 16.88  -12 06 32.0   16.6   16".4 W, 0".4 S    LOSS/KAIT
Apr. 14.548   10 50 16.99  -12 06 31.5   16.6   14" W, 1".1 S      Itagaki

Additional magnitudes for 2008bt in NGC 3404:  2006 Feb. 23, [19.0 (Itagaki);
2008 Apr. 3.24, [18.8 (KAIT); 4.54, [18.5 (Itagaki); 14.24, 16.5 (KAIT).
Itagaki adds that nothing is visible at the position of 2008bt on the
Digitized Sky Survey.

Host galaxy info: vel = 4606 km/s; 2.1 x 0.5; 14.13; SBab? sp

SN type info: Ia

------------------------------

Return to KAIT home page