------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2343 2007 Jun 01 14.31UT 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 ------------------------------------------------------------------- COMET C/2007 K5 (LOVEJOY) Terry Lovejoy, Australia, reports on IAUC 8840 his discovery of a comet on CCD images obtained on 2007 May 26 with a 200-mm f/2.8 telephoto lens. The object has been reported as circular, 1' in diameter with a clear blue-green colour but no tail. The comet was confirmed by J. Drummond of New Zealand using a 0.20-m f/4.6 reflector on images of May 28. Selected positions: 2007 UT R.A. (2000) Decl. Mag. Observer May 26.3424 5 50 24.9 -15 09 16 13 Lovejoy 26.3458 5 50 25.4 -15 09 11 " 28.28 6 00 18.2 -15 05 39.7 13 Drummond 28.3458 6 00 34.4 -15 04 56 13 Lovejoy 29.27 6 05 15.77 -15 03 34.6 Drummond 29.34201 6 05 38.82 -15 03 15.2 McNaught Brian Marsden has published the following orbital elements on MPEC 2007-K80: T 2007 Apr. 26.977 TT MPC q 1.12113 (2000.0) P Q Peri. 250.115 +0.252112 -0.949749 Node 191.798 +0.758252 +0.074769 e 1.0 Incl. 65.141 -0.601243 -0.303953 >From 8 observations 2007 May 26-30. Ephemeris: Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 2007 05 30 06 08.97 -15 01.6 1.738 1.241 44.6 35.0 14.1 2007 06 09 06 58.33 -14 24.3 1.795 1.316 46.2 33.9 14.5 2007 06 19 07 44.20 -13 32.2 1.891 1.403 46.6 31.8 14.9 2007 06 29 08 25.52 -12 36.7 2.020 1.499 45.7 29.1 15.3 2007 07 09 09 02.12 -11 46.0 2.174 1.602 43.7 26.0 15.7 SUPERNOVA 2007ci IN NGC 3873 Discovery by T. Puckett and T. Crowley of a possible supernova (CBET 966): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007ci May 15.12 11 45 45.85 +19 46 13.9 17.5 3.8"W,12.4"S SUPERNOVA 2007cj IN IC 2531 Discovery by Taiwan Supernova Survey of a possible supernova (CBET 968): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007cj May 3.54 09 59 55.76 -29 37 03.3 15.9 1.1"E, 0.3"S A spectrum of May 21.05UT by M. A. P. Torres and J. Steiner (Magellan Clay 6.5-m) indicates it is a reddened type-Ia, one month past maximum. SUPERNOVA 2007cl IN NGC 6479 Discovery by T. Puckett and Giovanni Sostero of a possible supernova (CBET 972): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007cl May 23.34 17 48 21.19 +54 09 05.2 17.6 3.2"W, 8.2"N Type-Ic Guy M Hurst