SN2001bg – discovery

Tom Boles

SN2001bg in NGC 2608, discovered 2001 May 8. IAU Circular : G.M. Hurst, Basingstoke, England, reports the discovery by T. Boles, Coddenham, of an apparent supernova (mag. about 14) on an unfiltered CCD frame (limiting mag. about 18) taken on May 8.943 UT with a 0.36-m Schmidt–Cassegrain telescope in the course of the UK Nova/Supernova Patrol. The object was near the same brightness on a second image obtained by Boles on May 9.9 in rather poor conditions. The new object is located at RA 8h 35m 18s.86, Dec +28º 28' 05".8 (equinox 2000.0), which is 22" east and 19" south of the center of NGC 2608. Nothing appears at this location on a master image taken on 2000 Jan. 13.956 (limiting mag. about 19) or on Palomar Sky Survey images taken on 1989 Nov. 8 (limiting red mag. about 20) and on 1990 Mar. 23 (limiting blue mag. about 20). SN 2001bg also appears near mag. 14 on an unfiltered CCD image taken on May 9.884 with a 0.15-m reflector by H. Kerner, Fassberg, Germany, at the request of Hurst.