IAUC 7871: 2002cc; 2002cd; 2002bt

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                                                  Circular No. 7871Central Bureau for Astronomical TelegramsINTERNATIONAL ASTRONOMICAL UNIONMailstop 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  ISSN 0081-0304Phone 617-495-7440/7244/7444 (for emergency use only)SUPERNOVA 2002cc IN ANONYMOUS GALAXY      W. D. Li, University of California at Berkeley, reports the LOTOSS(cf.IAUC 7514) discovery of an apparent supernova (mag about 18.5) onunfiltered CCD images taken with the 0.8-m Katzman Automatic ImagingTelescope (KAIT) on Apr. 4.2 and 9.3 UT.  SN 2002cc is located at R.A. =8h34m01s.97, Decl. = +55d39'12".4 (equinox 2000.0), which is 1".2 west and5".3 north of the nucleus of an anonymous galaxy located about 65" west and73" north of UGC 4470.  A KAIT image of the same field on Mar. 25.3 UT showednothing at this position (limiting mag about 19.5).     T. Boles, Coddenham, Suffolk, reports his independent discovery of thissupernova at mag 17.2 on a 30-s unfiltered CCD image taken on Apr. 8.876 UT(limiting mag 18.5) with a 0.35-m Schmidt-Cassegrain reflector, in the courseof the U.K. Nova/Supernova patrol.  He provides end figures 02s.11, 12".5and notes that the object is not present on his images from 2001 Dec. 10(limiting mag 19.0), 2002 Jan. 17 or Feb. 16.  It is also not present onPalomar Sky Survey images taken on 1997.908 (red, limiting mag 21.0) and1991.110 (blue, limiting mag 20.5).SUPERNOVA 2002cd IN NGC 6916     M. Armstrong, Rolvenden, Kent, reports his discovery of an apparentsupernova (mag 17.5) on an unfiltered CCD image (limiting mag 19.0) takenwith a 0.35-m Schmidt-Cassegrain telescope on Apr. 8.157 UT in the course ofthe U.K. Nova/Supernova patrol.  The new object is confirmed at mag 17.0 onan image taken on Apr. 9.04 and is located at R.A. = 20h23m34s.42, Decl. == +58d20'47".4 (equinox 2000.0), or approximately 10" east and 10" north ofthe center of NGC 6916.  The new object is not present on Armstrong's imagesfrom 2001 July 15 (limiting mag 19.5), Nov. 1 and Nov. 10 (both limiting mag19.0), or on Palomar Sky Survey images taken on 1989.573 (blue, limitingmag 22.5) and 1991.527 (red, limiting mag 20.8).SUPERNOVA 2002bt IN UGC 8584     T. Matheson, S. Jha, P. Challis and R. Kirshner, Harvard-SmithsonianCenter for Astrophysics, report that a spectrum (range 370-750 nm) ofSN 2002bt (cf.IAUC 7862), obtained by M. Calkins on Apr. 3.42 UT withthe F. L. Whipple Observatory 1.5-m telescope (+ FAST spectrograph), shows itto be a type-Ia supernova two weeks after maximum.                      (C) Copyright 2002 CBAT2002 April 9                   (7871)              Brian G. Marsden

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