Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site amdahl.UUCP Path: utzoo!linus!philabs!prls!amdimage!amdcad!amdahl!canopus From: canopus@amdahl.UUCP (Alpha Carinae) Newsgroups: net.astro,net.space Subject: Comet Halley Ephemerides - Oct 85 Message-ID: <2056@amdahl.UUCP> Date: Tue, 24-Sep-85 14:23:06 EDT Article-I.D.: amdahl.2056 Posted: Tue Sep 24 14:23:06 1985 Date-Received: Fri, 27-Sep-85 07:48:43 EDT Distribution: net Organization: RA: 6h 22m 30s; Dec: -52d 36m Lines: 52 Xref: linus net.astro:905 net.space:3048 These ephemerides are produced from a program which I posted to the net earlier this year. The positions are close enough for amateur work. The magnitude estimates appear now to be a bit optimistic: On September 14th the program calculates the magnitude to be 11.6; actual visual observations give estimates closer to 12 - 12.5 on that date. Constructive comments always welcome. COMET HALLEY EPHEMERIDES October 1985 POSITION EST DIST DIST TO DAYS TO DATE R.A. DEC. MAG TO SUN EARTH PERIHELION ---------- --------------- ---- ------- ------ ---- 10/01/1985: 6H 11M, 20D 0M 10.6 2.339AU 2.02AU -132 10/02/1985: 6H 11M, 20D 2M 10.5 2.326AU 1.99AU -131 10/03/1985: 6H 10M, 20D 4M 10.5 2.313AU 1.96AU -130 10/04/1985: 6H 10M, 20D 7M 10.4 2.300AU 1.92AU -129 10/05/1985: 6H 9M, 20D 9M 10.3 2.286AU 1.89AU -128 10/06/1985: 6H 9M, 20D 11M 10.3 2.273AU 1.86AU -127 10/07/1985: 6H 8M, 20D 14M 10.2 2.260AU 1.83AU -126 10/08/1985: 6H 7M, 20D 16M 10.1 2.246AU 1.80AU -125 10/09/1985: 6H 6M, 20D 19M 10.1 2.233AU 1.76AU -124 10/10/1985: 6H 6M, 20D 22M 10.0 2.220AU 1.73AU -123 10/11/1985: 6H 5M, 20D 25M 9.9 2.206AU 1.70AU -122 10/12/1985: 6H 4M, 20D 28M 9.8 2.193AU 1.67AU -121 10/13/1985: 6H 3M, 20D 31M 9.8 2.179AU 1.64AU -120 10/14/1985: 6H 2M, 20D 34M 9.7 2.166AU 1.60AU -119 10/15/1985: 6H 0M, 20D 37M 9.6 2.152AU 1.57AU -118 10/16/1985: 5H 59M, 20D 41M 9.6 2.138AU 1.54AU -117 10/17/1985: 5H 58M, 20D 44M 9.5 2.125AU 1.51AU -116 10/18/1985: 5H 56M, 20D 48M 9.4 2.111AU 1.48AU -115 10/19/1985: 5H 54M, 20D 52M 9.3 2.097AU 1.45AU -114 10/20/1985: 5H 53M, 20D 56M 9.3 2.084AU 1.42AU -113 10/21/1985: 5H 51M, 21D 0M 9.2 2.070AU 1.38AU -112 10/22/1985: 5H 49M, 21D 4M 9.1 2.056AU 1.35AU -111 10/23/1985: 5H 47M, 21D 8M 9.0 2.042AU 1.32AU -110 10/24/1985: 5H 44M, 21D 12M 8.9 2.028AU 1.29AU -109 10/25/1985: 5H 42M, 21D 16M 8.8 2.015AU 1.26AU -108 10/26/1985: 5H 39M, 21D 21M 8.7 2.001AU 1.23AU -107 10/27/1985: 5H 36M, 21D 25M 8.7 1.987AU 1.20AU -106 10/28/1985: 5H 33M, 21D 30M 8.6 1.973AU 1.17AU -105 10/29/1985: 5H 30M, 21D 34M 8.5 1.959AU 1.14AU -104 10/30/1985: 5H 27M, 21D 39M 8.4 1.945AU 1.12AU -103 10/31/1985: 5H 23M, 21D 43M 8.3 1.931AU 1.09AU -102 --------------------------------------------------------------------- -- Alpha Carinae (408-746-6493) ...!{ihnp4,cbosgd,sun}!amdahl!canopus Amdahl Corporation, Sunnyvale CA [This is the obligatory disclaimer..] Brought to you by Super Global Mega Corp .com