THE ASTRONOMER Electronic Circular No 626 1992 Apr 16 19.30UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074 Telex: 9312111261 Answerback: TA G JANET BOXES: GMH at UK.AC.CAM.ASTRONOMY.STARLINK or GUYH at UK.AC.SUSSEX.CLUSTER TELECOM GOLD: 10074:MIK2885 PRESTEL 256471074 ------------------------------------------------------------------- PERIODIC COMET SINGER BREWSTER (1992e) J. V. Scotti, Lunar and Planetary Laboratory, reports his recovery of this comet with the Spacewatch telescope, Kitt Peak. The last image is very slightly diffuse, with an 8" coma visible. The indicated correction to the prediction on MPC 14595 (ephemeris MPC 19703) is Delta T = -0.84 day. 1992 UT R.A. (2000) Decl. m1 Apr. 1.34536 10 11 30.23 + 4 49 29.8 20.4 1.36634 10 11 29.83 + 4 49 39.0 4.27955 10 10 36.87 + 5 09 32.7 4.30044 10 10 36.45 + 5 09 40.9 4.32059 10 10 36.14 + 5 09 50.1 20.6 Improved orbital elements from 41 observations 1986-1992: Epoch = 1992 Oct. 25.0 TT T = 1992 Oct. 27.2349 TT Peri. = 46.6455 e = 0.413766 Node = 192.6170 2000.0 q = 2.026662 AU Incl. = 9.1929 a = 3.457086 AU n = 0.1533341 P = 6.428 years IAUC 5490 Guy M Hurst