------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 3023 2014 Sep 10 15.18UT 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/2014 R1 (BORISOV) G. Borisov reports the discovery of a comet on three CCD images obtained with the 30-cm f/1.5 astrograph of the MARGO observatory, Nauchnij, Russia. The object showed a coma of diameter about 30" and a tail 40" long. 2014 UT R.A. (2000) Decl. Mag. Observer Sept. 5.05347 8 26 55.33 +19 04 58.0 16.0 Borisov 5.08055 8 27 00.52 +19 04 47.8 15.9 " After appeal by the Minor Planet Center on PCCP, F. Kugel, Banon, France, reported that unfiltered CCD images taken by C. Rinner and himself on 2014 Sept. 5.13UT with a 0.4-m f/3 reflector at the Observatoire Chante-Perdrix (Dauban) show a coma around 20" in diameter and a tail about 0'.6 long toward p.a. 290 degrees. CBET 3968 (extract) Gareth Williams reports on M.P.E.C. 2014-R64 orbital elements and ephemeris: T 2014 Oct. 20.40407 TT MPC q 1.6167363 (2000.0) P Q Peri. 28.74034 -0.67428728 -0.72247375 Node 104.11243 +0.64380583 -0.67651824 e 1.0 Incl. 9.06903 +0.36173293 -0.14267010 Ephemeris: C/2014 R1 (Borisov) Date TT R. A. (2000) Decl. Delta r Elong. m1 2014 09 06 08 29 53.8 +18 58 31 2.4021 1.7236 38.0 16.3 2014 09 07 08 33 03.0 +18 51 26 2.3936 1.7191 38.2 16.2 2014 09 08 08 36 12.3 +18 44 10 2.3851 1.7146 38.5 16.2 2014 09 14 08 55 12.5 +17 56 24 2.3362 1.6896 39.7 16.1 2014 09 22 09 20 38.1 +16 42 15 2.2767 1.6616 41.4 16.0 2014 10 07 10 08 01.1 +13 55 33 2.1824 1.6269 44.4 15.8 SUPERNOVA 2014ca (S. PARKER) 2014ca May 10.51 16 53 20.94 -72 30 52.0 17.3r 4 "W 1 "S An image of the variable can be viewed via website URL http://tinyurl.com/p9ym3ly M. Childress: spectrum June 11 type-II two months past maximum Classification shows a good match to SN 2006bp at phase +65 days. Guy M Hurst