Electronic Telegram No. 281
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 2005kb
     Further to CBETs 272, 277, and 280, J. Barentine, Apache
Point Observatory (APO); B. Bassett, University of Portsmouth
(UP); A. Becker, University of Washington; H. Brewington, APO;
F. DeJongh, Fermilab (FNAL); J. Dembicky, APO; D. L. DePoy, Ohio
State University (OSU); B. Dilday, University of Chicago (UC);
M. Doi, University of Tokyo (Tokyo); E. Elson, South African
Astronomical Observatory (SAAO); J. Frieman, FNAL and UC; P.
Garnavich, University of Notre Dame; M. Harvanek, APO; T. Gueth
and J. Holtzman, New Mexico State University; J. Krzesinski, APO;
H. Lampeitl, FNAL; R. Kessler, UC; B. Ketzeback, APO; K. Konishi,
Tokyo; D. Long, O. Malanushenko, AND V. Malanushenko, APO; J.
Marriner, FNAL; J. L. Marshall, OSU; R. McMillan, APO; G.
Miknaitis, FNAL; R. Nichol, UP; K. Pan, APO; J. L. Prieto, OSU;
M. Richmond, Rochester Institute of Technology; A. Riess, Space
Telescope Science Institute; R. Romani and M. Sako, Stanford
University; D. Schneider, Pennsylvania State University; M. Smith,
UP; S. Snedden, APO; M. Subbarao, UC and Adler Planetarium; N.
Takanashi, Tokyo; K. van der Heyden, SAAO; and N. Yasuda, Tokyo,
on behalf of the Sloan Digital Sky Survey II collaboration, report
the discovery of a type-II supernova on g, r, and i images taken
with the SDSS 2.5-m telescope at Apache Point Observatory on the
night of Nov. 5 with magnitudes g = 18.1, r = 18.3, i = 18.5.  In
a second image taken on Nov. 7, the new object had magnitudes g =
18.0, r = 18.0, i = 18.3.  SN 2005kb is located at R.A. =
0h50m50s.68, Decl. = +0o51'13".0 (equinox 2000.0), which is
approximately 13".7 west and 8".4 north of the center of a galaxy
that has a prior spectrum from the SDSS showing it to be at
redshift z = 0.0153.  A spectrum taken on Nov. 8 with the ARC
3.5-m telescope (+ DIS) shows SN 2005kb to be of type II.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2005 CBAT
2005 November 10                 (CBET 281)               Daniel W. E. Green