------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2114 2005 May 19 09.00UT 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 GMH at AST.STAR.RL.AC.UK WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- COMET P/2005 JQ_5 (CATALINA) An apparently asteroidal object found by the Catalina Survey, and designated 2005 JQ_5 has been found to show cometary features. The discovery details follow: 2005 UT R.A. (2000) Decl. Mag. May 6.27858 15 14 09.92 - 3 10 44.3 16.7 (IAUC 8531) Orbital elements (MPEC 2005-K14): T 2005 July 28.067 TT MPC q 0.82647 (2000.0) P Q n 0.226419 Peri. 222.693 +0.745953 +0.658684 a 2.66601 Node 95.834 -0.581245 +0.716028 e 0.69000 Incl. 5.679 -0.325127 +0.231169 P 4.35 Ephemeris: Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 2005 05 20 14 49.40 +00 14.7 0.313 1.303 155.3 18.9 16.1 2005 05 25 14 36.02 +01 43.8 0.273 1.253 148.2 25.2 15.7 2005 05 30 14 19.43 +03 22.7 0.236 1.204 139.8 32.9 15.2 2005 06 04 13 58.55 +05 14.3 0.203 1.156 130.2 42.1 14.7 2005 06 09 13 31.55 +07 23.1 0.172 1.108 118.9 53.3 14.1 2005 06 14 12 55.21 +09 55.8 0.144 1.063 105.2 67.2 13.6 2005 06 19 12 04.26 +12 55.5 0.122 1.019 88.0 85.1 13.0 2005 06 24 10 52.92 +15 58.4 0.106 0.978 66.2 108.1 12.5 2005 06 29 09 24.56 +17 43.7 0.103 0.941 40.7 135.2 12.3 S/2005 S 1 On IAUC 8524 C. C. Porco, CICLOPS, Space Science Institute, Boulder; and the Cassini Imaging Science Team report the discovery of a new satellite of Saturn, designated S/2005 S 1, orbiting within the Keeler gap in Saturn's outer A ring. The object was discovered in six images taken over 16 min on May 1 from a time-lapse sequence of 0.180-s narrow- angle-camera exposures that were targeted to the illuminated side of the outer edge of the A ring. S/2005 S 1 was subsequently in images of May 2 when its 7-km disk was resolved. The satellite orbits Saturn every 0.594 day at a distance of 136500 km. SUPERNOVA 2005bi IN MCG +07-34-36 This object, found by Tom Boles, was announced in TA E-Circular 2107. A. V. Filippenko et. al., University of California, Berkeley, report on CBET 150 that a spectrum obtained on May 11 UT with the Keck I 10-m shows it to be of type II, perhaps 1.5-2 months after the explosion. SUPERNOVA 2005bz IN UGC 11162 Discovery by LOSS of a possible supernova (IAUC 8527): SN 2005 UT R.A. (2000.0) Decl. Mag. Offset 2005bz Apr. 29.51 18 13 01.73 +29 41 51.5 19.1 1.0"E, 4.4"N SUPERNOVA 2005ca IN ANONYMOUS GALAXY Discovery by SDSS of a possible supernova (IAUC 8530): SN 2005 UT R.A. (2000.0) Decl. Mag. Offset 2005ca May 12.19 13 32 38.59 +11 48 33.2 20.9r At centre Found in spectra of May 12. SUPERNOVA 2005cb IN NGC 6753 Discovery by Brazilian Supernovae Search of a possible supernova (IAUC 8530): SN 2005 UT R.A. (2000.0) Decl. Mag. Offset 2005cb May 13.22 19 11 21.95 -57 02 27.4 15.6 16"W, 19"N Guy M Hurst