------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2314 2007 Mar 15 12.03UT 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 ------------------------------------------------------------------- SATELLITES OF 2003 AZ_84, (50000), (55637), AND (90482) Mike Brown and T.-A. Suer, California Institute of Technology, have reported on IAU Circular 8812, their discoveries of four satellites of large transneptunian objects from observations with the Hubble Space Telescope. Observations of (55637) 2002 UX_25 on 2005 Aug. 26.64 UT detected a satellite that was 2.5 +/- 0.2 mag fainter than the primary at a separation of 0".164 +/- 0".003 in p.a. 153 +/- 2 degrees. Observations of (90482) Orcus on 2005 Nov. 13.13 detected a satellite that was 2.7 +/- 1 magnitude fainter than the primary at a separation of 0".25 +/- 0".01 in p.a. 128 +/- 1 deg. Observations of 2003 AZ_84 on 2005 Dec. 2.99 detected a satellite that was 5.0 +/- 0.3 mag fainter than the primary at a separation of 0".22 +/- 0".01 in p.a. 321 +/- 2 deg. Observations of (50000) Quaoar on 2006 Feb. 14.90 detected a satellite that was 5.6 +/- 0.2 mag fainter than the primary at a separation of 0".35 +/- 0".01 in p.a. 110 +/- 1 deg. SUPERNOVA 2007V IN ANONYMOUS GALAXY Discovery by LOSS of a possible supernova (IAUC 8813): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007V Feb. 12.46 10 27 05.58 -03 18 05.1 17.9 0.3"E, 1.8"S Type-Ia, found about one month after maximum SUPERNOVA 2007W IN NGC 5105 Discovery by Berto Monard of a possible supernova (IAUC 8813): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007W Feb. 15.03 13 21 48.50 -13 12 56.9 17.1 8 "W, 33 "S Type II SUPERNOVA 2007X IN ESO 385-G32 Discovery by Berto Monard of a possible supernova (IAUC 8813): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007X Feb. 15.06 14 30 14.50 -36 57 53.1 15.3 30 "E, 2 "S Type II SUPERNOVA 2007Y IN NGC 1187 Discovery by Berto Monard of a possible supernova (IAUC 8813): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007Y Feb. 15.77 03 02 35.92 -22 53 50.1 17.5 24 "W,110 "S SUPERNOVA 2007Z IN PGC 16993 Discovery by E. J. Christensen, Mount Lemon Survey of a possible supernova (IAUC 8813): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007Z Feb. 17.22 05 15 42.68 +19 21 49.5 17.5 10.4"W, 2.7"N Type II Guy M Hurst