2005CBET..281....1B

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.