------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1386 1999 Feb 26 21.11UT 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.demon.co.uk/astronomer ------------------------------------------------------------------- COMET C/1999 D1 (HERMANN) The LONEOS program reports the discovery of an apparent comet. Selected observations: 1999 UT R.A. (2000) Decl. m1 Observer Feb. 20.40541 12 15 00.34 + 3 20 24.3 18.4 Hermann 20.42580 12 14 59.55 + 3 19 50.7 " 20.44621 12 14 58.73 + 3 19 16.0 " 20.94853 12 14 40.52 + 3 05 28.0 Pravec 20.96249 12 14 39.90 + 3 05 04.8 " S. M. Hermann (Lowell Observatory). 0.59-m LONEOS Schmidt telescope + CCD. Measurer B. W. Koehn. IAUC 7111 (extract) Orbital elements: T 1999 Feb 18.0590 TT w 173.49700 ) e 1.00000000 O 350.54900 ) 2000.0 q 1.8133700 A.U. i 25.77200 ) Source: IAUC 7112 Positions are geocentric Ephemeris by G.Hurst using EPH.EXE by Nick James: m = 15.0 + 5.0 log R + 10.0 log r Date R.A. (2000) Dec. R r Elong Mag. Motion h m o ' (AU) (AU) o "/hr P.A. 1999 Feb 27.00 12 10.19 +0 17.6 0.868 1.817 155.7 17.3 77 204 28.00 12 9.34 -0 10.5 0.865 1.818 156.7 17.3 77 205 1999 Mar 1.00 12 8.45 -0 38.6 0.863 1.819 157.8 17.3 78 206 2.00 12 7.54 -1 6.7 0.860 1.820 158.8 17.3 78 206 3.00 12 6.59 -1 34.8 0.858 1.821 159.8 17.3 79 207 4.00 12 5.63 -2 2.9 0.856 1.822 160.8 17.3 79 208 5.00 12 4.64 -2 30.9 0.855 1.823 161.8 17.3 79 208 6.00 12 3.62 -2 58.9 0.853 1.825 162.8 17.3 80 209 7.00 12 2.59 -3 26.8 0.852 1.826 163.8 17.3 80 209 8.00 12 1.53 -3 54.6 0.852 1.828 164.7 17.3 80 210 9.00 12 0.46 -4 22.2 0.851 1.829 165.6 17.3 80 210 10.00 11 59.37 -4 49.8 0.851 1.831 166.4 17.3 80 211 11.00 11 58.27 -5 17.1 0.851 1.833 167.3 17.3 80 211 12.00 11 57.15 -5 44.3 0.851 1.835 168.0 17.3 80 212 13.00 11 56.03 -6 11.2 0.852 1.837 168.7 17.3 79 212 14.00 11 54.90 -6 38.0 0.853 1.839 169.3 17.3 79 212 15.00 11 53.76 -7 4.5 0.854 1.841 169.7 17.3 78 213 GK PERSEI This old nova is in minor outburst: Feb 16.927UT, 13.1 (Gary Poyner, Birmingham); 17.042, 12.9 (John Bortle, USA); 20.788, 12.5 E.Muyllaert, Belgium); 22.073, 12.5 (R.Berg, USA); 22.420, 11.8 (Sakuma). The last outburst started in 1996 Feb 24. U SCORPII This old nova is also in outburst: Feb 25.194UT, 9.5 (Patrick Schmeer, Germany); 25.563, 7.6 (L.Shaw). Guy M Hurst