------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2180 2005 Dec 22 19.25UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK Backup: gmh@wdcc1.bnsc.rl.ac.uk WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- (3169) OSTRO P. Descamps, Institut de Mecanique Celeste et de Calcul des Ephemerides (IMCCE) et. al., report on CBET 320 that photometric observations of the minor planet (3169), obtained between 2006 Nov. 5 and Dec. 5, indicate that the object is a binary system showing mutual eclipses and/or occultations. The orbital period of the system is 0.2701 +/- 0.0002 day. A regular light curve of amplitude 0.35 mag is synchronized with the eclipse events, indicating that at least one of the two bodies is elongated and rotates synchronously with the orbital motion. SUPERNOVA 2005lt IN MCG +03-30-51 Discovery by LOSS of a possible supernova (IAUC 8645): SN 2005 UT R.A. (2000.0) Decl. Mag. Offset 2005lt Dec. 10.55 11 42 26.21 +20 07 05.0 15.7 24.5"E, 5.4"S SUPERNOVA 2005lu MCG -03-07-40 Discovery by LOSS of a possible supernova (IAUC 8645): SN 2005 UT R.A. (2000.0) Decl. Mag. Offset 2005lu Dec. 11.27 02 36 03.71 -17 15 50.0 17.1 1.8"E, 2.2"S The offsets are with respect to the nucleus of MCG -03-07-40, which is the western component of the interacting galaxy pair ESO 545-G38 (the eastern component is MCG -03-07-39) according to IAUC 8645. SUPERNOVA 2005lv IN UGC 2964 Discovery by Puckett and Gagliano of a possible supernova (IAUC 8645): SN 2005 UT R.A. (2000.0) Decl. Mag. Offset 2005lv Dec. 6.19 04 08 56.47 +27 11 50.8 18.7 13.5"W, 2.4"S Guy M Hurst