Circular No. 3019 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Postal Address: Central Bureau for Astronomical Telegrams Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Cable Address: SATELLITES, NEWYORK Telex: 921428 Telephone: (617) 864-5758 POSSIBLE COMET R. D. Eberst, Royal Observatory, Edinburgh, writes that the trail of a comet has been found by I. Coulson, University of Edinburgh, and himself on a 60-min exposure by S. Tritton with the U.K. 122-cm Schmidt telescope at Siding Spring as follows: 1976 UT R. A. (1950) Decl. m1 Oct. 16.583 23 44.4 -12 30 ~17 Daily motion: dR.A. = -0m.54, dDecl. = -8'; the sense of motion is not completely certain, but the eastern (i.e., beginning) end of the trail is denser than the western. The object is diffuse with condensation and a possible tail extending perhaps 0'.3 just north of east. COMET SCHUSTER (1976c) The following precise positions were obtained by P. M. Kilmartin with the 61-cm reflector at Mount John University Observatory. The images of the comet were very faint. 1976 UT R. A. (1950) Decl. July 28.30049 9 57 03.60 -35 31 51.9 28.34789 9 57 04.44 -35 31 54.8 Extension of the ephemeris on IAUC 2958: 1977/78 ET R. A. (1950) Decl. Delta r m2 Feb. 6 9 15.06 -51 04.4 7.979 8.415 18.3 16 9 04.18 -50 54.4 26 8 53.75 -50 29.4 7.997 8.487 18.3 Mar. 8 8 44.18 -49 51.3 18 8 35.78 -49 02.5 8.094 8.560 18.4 28 8 28.74 -48 06.2 Apr. 7 8 23.13 -47 05.4 8.262 8.634 18.4 17 8 18.93 -46 03.1 27 8 16.09 -45 02.0 8.484 8.709 18.5 May 7 8 14.46 -44 04.3 17 8 13.91 -43 11.9 8.736 8.785 18.6 27 8 14.29 -42 26.1 June 6 8 15.45 -41 48.0 8.992 8.862 18.7 16 8 17.23 -41 18.2 26 8 19.51 -40 57.0 9.230 8.940 18.8 July 6 8 22.14 -40 44.8 16 8 25.01 -40 41.5 9.433 9.018 18.9 26 8 28.00 -40 46.9 Aug. 5 8 30.98 -41 00.9 9.586 9.098 19.0 15 8 33.85 -41 23.1 25 8 36.50 -41 53.0 9.683 9.178 19.1 Sept. 4 8 38.79 -42 30.0 14 8 40.63 -43 13.5 9.723 9.258 19.1 24 8 41.88 -44 02.7 Oct. 4 8 42.42 -44 56.5 9.711 9.340 19.1 14 8 42.12 -45 53.7 24 8 40.87 -46 53.1 9.659 9.422 19.2 Nov. 3 8 38.55 -47 52.8 13 8 35.07 -48 51.2 9.585 9.504 19.2 23 8 30.37 -49 46.1 Dec. 3 8 24.45 -50 35.4 9.509 9.587 19.2 13 8 17.38 -51 16.7 23 8 09.30 -51 48.1 9.455 9.671 19.2 Jan 2 8 00.47 -52 07.8 12 7 51.18 -52 14.7 9.441 9.755 19.3 22 7 41.80 -52 08.0 Feb. 1 7 32.71 -51 48.4 9.483 9.840 19.3 11 7 24.26 -51 16.7 21 7 16.71 -50 34.7 9.585 9.925 19.4 Mar. 3 7 10.26 -49 44.6 13 7 05.02 -48 48.8 9.742 10.011 19.4 23 7 01.02 -47 49.8 Apr. 2 6 58.22 -46 49.9 9.943 10.097 19.5 12 6 56.53 -45 51.1 22 6 55.86 -44 55.3 10.169 10.184 19.6 VV CEPHEI Further photoelectric observations have been reported: 1976 UT B U Observer 1976 UT B U Observer Oct. 27.15 6.99 Skillman Nov. 30.02 7.09 Skillman 29.08 7.03 " 30.07 7.00 8.43 Gradie Nov. 2.10 7.01 " Dec. 1.31 7.00 8.42 " 9.04 7.00 " 2.11 7.03 8.49 " 11.05 7.03 " 4.15 7.00 8.48 " 16.08 7.11 " 5.02 7.09 Skillman 24.01 7.16 " 13.99 7.13 26.07 7.05 8.37 Gradie 17.99 7.14 " 28.17 7.07 8.46 " D. Skillman (College Park, Maryland). Comparison star 20 Cep determined at B = 6.70. Uncertainty +/- 0.02 magnitude. J. Gradie (Lunar and Planetary Laboratory). On Nov. 30.07 V = 5.21. Comparison star 20 Cep. Uncertainty +/- 0.02 magnitude. 1976 December 23 (3019) Brian G. Marsden
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