From: j.jahn@abbs.hanse.de (Jost Jahn)
Newsgroups: sci.astro
Subject: Comets 1992 Aug. 17 - 24.
Date: 13 Aug 92 15:25:50 GMT
Reply-To: j.jahn@abbs.hanse.de
Distribution: sci
Organization: ABBS AstroMail, D-W 2121 Dahlenburg / Germany
X-Version: ZerUU V6.45c

Daily comet ephemerides for the period: Monday, 1992 Aug. 17 - 24, 0 h UT
(Universal Time). Due to e-mail problems the posting of the five different
ephemerides has to be made on three days. Only every fifth issue of these
different ephemerides detailed explanations are given alternately!

Name of the comet     Rect(1950)Decl Rect(2000)Decl  r    d   Elo Magn MotioPos
[P/] Name [Pro/Fin]    h   m    o  '  h   m    o  ' A.U. A.U.  o  Step  "/h  o
----------------------------- Monday, 1992 Aug. 17 ----------------------------
Shoemaker-Lev (1991d) 20:01.6 +27:34 20:03.7 +27:43 3.38 2.62 132 12.7 63.2/204
Helin-Lawrenc (1991l)  1:40.9 +13:12  1:43.6 +13:27 3.09 2.51 116 13.3 52.0/292
Zanotta-Brew (1991g1) 13:14.6 -34:30 13:17.4 -34:46 3.22 3.43  69 13.7 42.5/ 82
Tanaka-Machho (1992d)  8:55.3 +43:13  8:58.6 +43:01 2.10 2.90  31 10.1 52.1/135
Bradfield (1992i)      8:41.7 +28:44  8:44.7 +28:33 1.70 2.61  21 14.9 21.0/ 43
Machholz (1992k)       7:28.9 + 1:32  7:31.5 + 1:25 1.07 1.71  36 10.5  156/136
P/Grigg-Skjellerup    13:03.5 + 2:15 13:06.0 + 1:59 1.06 1.36  50 14.5  176/ 98
Shoemaker-Le (1991a1) 12:07.7 - 3:48 12:10.3 - 4:05 0.94 1.47  40  9.1  152/179
P/Shoemak (1984XVIII)  4:43.7 + 8:59  4:46.4 + 9:04 1.33 1.20  74 15.3  115/ 64
P/Schuster (1978I)     4:45.0 +16:16  4:47.8 +16:21 1.55 1.53  72 13.8  107/ 67
P/Giclas (1992l)       3:14.0 + 8:29  3:16.7 + 8:40 1.86 1.47  95 14.4 69.0/ 82
P/Ashbrook-Ja (1992j) 15:59.4 -34:47 16:02.6 -34:55 3.16 2.81 101 14.7 17.6/ 71
---------------------------- Tuesday, 1992 Aug. 18 ----------------------------
Shoemaker-Lev (1991d) 20:00.9 +27:11 20:02.9 +27:20 3.39 2.63 132 12.8 63.2/203
Helin-Lawrenc (1991l)  1:39.6 +13:19  1:42.3 +13:34 3.10 2.50 117 13.3 53.4/291
Zanotta-Brew (1991g1) 13:16.0 -34:28 13:18.8 -34:44 3.23 3.46  69 13.7 45.1/ 83
Tanaka-Machho (1992d)  8:56.6 +42:58  8:59.9 +42:47 2.11 2.90  32 10.1 51.4/135
Bradfield (1992i)      8:42.1 +28:50  8:45.1 +28:39 1.72 2.61  22 14.9 20.9/ 42
Machholz (1992k)       7:31.8 + 0:47  7:34.4 + 0:41 1.08 1.72  36 10.5  155/136
P/Grigg-Skjellerup    13:08.1 + 2:06 13:10.7 + 1:50 1.06 1.36  51 14.6  176/ 98
Shoemaker-Le (1991a1) 12:07.9 - 4:45 12:10.4 - 5:02 0.95 1.49  39  9.2  147/179
P/Shoemak (1984XVIII)  4:46.4 + 9:19  4:49.2 + 9:25 1.33 1.20  74 15.3  115/ 64
P/Schuster (1978I)     4:47.7 +16:32  4:50.6 +16:37 1.55 1.53  72 13.8  107/ 67
P/Giclas (1992l)       3:15.8 + 8:33  3:18.5 + 8:43 1.86 1.46  96 14.4 68.5/ 83
P/Ashbrook-Ja (1992j) 15:59.9 -34:45 16:03.2 -34:53 3.16 2.82 100 14.7 18.2/ 72
--------------------------- Wednesday, 1992 Aug. 19 ---------------------------
Shoemaker-Lev (1991d) 20:00.1 +26:48 20:02.2 +26:56 3.40 2.64 132 12.8 63.1/202
Helin-Lawrenc (1991l)  1:38.2 +13:27  1:40.9 +13:42 3.11 2.50 118 13.3 52.7/289
Zanotta-Brew (1991g1) 13:17.4 -34:26 13:20.3 -34:42 3.24 3.48  68 13.7 43.4/ 83
Tanaka-Machho (1992d)  8:57.9 +42:44  9:01.2 +42:32 2.12 2.91  32 10.1 50.9/136
Bradfield (1992i)      8:42.5 +28:56  8:45.5 +28:45 1.73 2.62  23 15.0 20.8/ 41
Machholz (1992k)       7:34.7 + 0:03  7:37.2 - 0:04 1.09 1.73  36 10.6  154/136
P/Grigg-Skjellerup    13:12.7 + 1:56 13:15.3 + 1:40 1.07 1.36  51 14.6  175/ 98
Shoemaker-Le (1991a1) 12:08.2 - 5:37 12:10.7 - 5:54 0.96 1.51  39  9.2  143/179
P/Shoemak (1984XVIII)  4:49.2 + 9:40  4:52.0 + 9:45 1.34 1.19  74 15.3  114/ 64
P/Schuster (1978I)     4:50.5 +16:49  4:53.3 +16:54 1.55 1.52  72 13.8  107/ 68
P/Giclas (1992l)       3:17.6 + 8:36  3:20.3 + 8:47 1.86 1.45  96 14.4 67.9/ 83
P/Ashbrook-Ja (1992j) 16:00.5 -34:43 16:03.8 -34:51 3.15 2.83  99 14.7 18.8/ 73
---------------------------- Thursday, 1992 Aug. 20 ---------------------------
Shoemaker-Lev (1991d) 19:59.4 +26:25 20:01.5 +26:33 3.40 2.64 132 12.8 62.9/202
Helin-Lawrenc (1991l)  1:36.8 +13:34  1:39.5 +13:49 3.12 2.49 119 13.3 54.3/289
Zanotta-Brew (1991g1) 13:18.9 -34:24 13:21.7 -34:39 3.25 3.51  67 13.7 39.5/ 82
Tanaka-Machho (1992d)  8:59.2 +42:30  9:02.5 +42:18 2.13 2.92  32 10.1 50.2/136
Bradfield (1992i)      8:42.9 +29:02  8:46.0 +28:51 1.75 2.63  24 15.0 20.7/ 41
Machholz (1992k)       7:37.5 - 0:41  7:40.1 - 0:48 1.10 1.73  37 10.6  153/136
P/Grigg-Skjellerup    13:17.4 + 1:47 13:19.9 + 1:31 1.07 1.36  51 14.6  175/ 98
Shoemaker-Le (1991a1) 12:08.4 - 6:27 12:11.0 - 6:44 0.97 1.54  38  9.3  138/179
P/Shoemak (1984XVIII)  4:52.0 +10:00  4:54.7 +10:05 1.34 1.19  74 15.3  114/ 64
P/Schuster (1978I)     4:53.2 +17:05  4:56.1 +17:10 1.55 1.51  73 13.8  107/ 68
P/Giclas (1992l)       3:19.4 + 8:40  3:22.1 + 8:50 1.86 1.44  97 14.3 67.4/ 83
P/Ashbrook-Ja (1992j) 16:01.1 -34:41 16:04.4 -34:49 3.15 2.84  98 14.7 19.4/ 74
----------------------------- Friday, 1992 Aug. 21 ----------------------------
Shoemaker-Lev (1991d) 19:58.7 +26:01 20:00.8 +26:10 3.41 2.65 132 12.8 62.8/201
Helin-Lawrenc (1991l)  1:35.4 +13:41  1:38.0 +13:56 3.12 2.49 120 13.3 56.1/289
Zanotta-Brew (1991g1) 13:20.3 -34:22 13:23.1 -34:37 3.27 3.53  67 13.8 43.8/ 84
Tanaka-Machho (1992d)  9:00.5 +42:15  9:03.7 +42:03 2.14 2.92  33 10.1 49.6/136
Bradfield (1992i)      8:43.3 +29:09  8:46.4 +28:58 1.76 2.63  24 15.1 20.6/ 40
Machholz (1992k)       7:40.3 - 1:25  7:42.9 - 1:32 1.11 1.74  37 10.7  151/136
P/Grigg-Skjellerup    13:22.0 + 1:37 13:24.5 + 1:21 1.08 1.36  51 14.7  175/ 98
Shoemaker-Le (1991a1) 12:08.6 - 7:19 12:11.2 - 7:36 0.98 1.56  38  9.3 87.4/156
P/Shoemak (1984XVIII)  4:54.7 +10:21  4:57.5 +10:25 1.34 1.19  74 15.3  113/ 64
P/Schuster (1978I)     4:56.0 +17:22  4:58.9 +17:26 1.55 1.51  73 13.7  107/ 68
P/Giclas (1992l)       3:21.2 + 8:43  3:23.9 + 8:53 1.86 1.44  97 14.3 66.8/ 83
P/Ashbrook-Ja (1992j) 16:01.7 -34:39 16:05.0 -34:47 3.15 2.85  97 14.7 20.0/ 75
---------------------------- Saturday, 1992 Aug. 22 ---------------------------
Shoemaker-Lev (1991d) 19:58.0 +25:38 20:00.1 +25:46 3.42 2.66 132 12.8 62.7/201
Helin-Lawrenc (1991l)  1:33.9 +13:48  1:36.6 +14:03 3.13 2.48 122 13.3 56.8/288
Zanotta-Brew (1991g1) 13:21.7 -34:20 13:24.5 -34:36 3.28 3.55  66 13.8 40.2/ 83
Tanaka-Machho (1992d)  9:01.7 +42:01  9:05.0 +41:49 2.15 2.93  33 10.2 49.0/136
Bradfield (1992i)      8:43.7 +29:15  8:46.8 +29:04 1.78 2.64  25 15.1 20.5/ 39
Machholz (1992k)       7:43.1 - 2:08  7:45.7 - 2:15 1.13 1.75  37 10.7  150/136
P/Grigg-Skjellerup    13:26.6 + 1:27 13:29.2 + 1:12 1.08 1.37  52 14.7  174/ 98
Shoemaker-Le (1991a1) 12:08.8 - 8:07 12:11.4 - 8:23 0.99 1.58  37  9.4  130/180
P/Shoemak (1984XVIII)  4:57.4 +10:41  5:00.2 +10:45 1.34 1.19  75 15.3  112/ 64
P/Schuster (1978I)     4:58.7 +17:38  5:01.6 +17:43 1.55 1.50  73 13.7  107/ 68
P/Giclas (1992l)       3:23.0 + 8:46  3:25.7 + 8:56 1.86 1.43  98 14.3 66.2/ 84
P/Ashbrook-Ja (1992j) 16:02.4 -34:37 16:05.6 -34:45 3.14 2.86  97 14.7 20.7/ 76
----------------------------- Sunday, 1992 Aug. 23 ----------------------------
Shoemaker-Lev (1991d) 19:57.4 +25:14 19:59.5 +25:23 3.43 2.67 132 12.9 62.7/200
Helin-Lawrenc (1991l)  1:32.4 +13:55  1:35.1 +14:10 3.14 2.48 123 13.3 57.1/287
Zanotta-Brew (1991g1) 13:23.1 -34:18 13:25.9 -34:34 3.29 3.58  65 13.8 47.8/ 85
Tanaka-Machho (1992d)  9:02.9 +41:47  9:06.2 +41:35 2.16 2.94  33 10.2 48.4/136
Bradfield (1992i)      8:44.1 +29:21  8:47.2 +29:10 1.79 2.64  26 15.1 20.4/ 38
Machholz (1992k)       7:45.9 - 2:51  7:48.4 - 2:58 1.14 1.75  38 10.8  149/136
P/Grigg-Skjellerup    13:31.2 + 1:18 13:33.8 + 1:02 1.09 1.37  52 14.7  174/ 98
Shoemaker-Le (1991a1) 12:09.1 - 8:53 12:11.7 - 9:10 1.00 1.60  37  9.4  127/180
P/Shoemak (1984XVIII)  5:00.2 +11:01  5:02.9 +11:05 1.34 1.18  75 15.3  112/ 64
P/Schuster (1978I)     5:01.5 +17:55  5:04.4 +17:59 1.55 1.49  74 13.7  107/ 68
P/Giclas (1992l)       3:24.8 + 8:49  3:27.5 + 8:59 1.86 1.42  98 14.3 65.6/ 84
P/Ashbrook-Ja (1992j) 16:03.0 -34:35 16:06.3 -34:43 3.14 2.87  96 14.7 21.3/ 77
----------------------------- Monday, 1992 Aug. 24 ----------------------------
Shoemaker-Lev (1991d) 19:56.8 +24:51 19:58.9 +24:59 3.43 2.68 131 12.9 62.6/199
Helin-Lawrenc (1991l)  1:30.9 +14:02  1:33.6 +14:17 3.15 2.47 124 13.3 57.7/287
Zanotta-Brew (1991g1) 13:24.5 -34:17 13:27.3 -34:32 3.30 3.60  65 13.8 45.1/ 85
Tanaka-Machho (1992d)  9:04.1 +41:34  9:07.4 +41:21 2.17 2.94  34 10.2 47.8/136
Bradfield (1992i)      8:44.5 +29:28  8:47.5 +29:17 1.80 2.65  27 15.2 20.4/ 37
Machholz (1992k)       7:48.7 - 3:34  7:51.2 - 3:41 1.15 1.76  38 10.8  148/136
P/Grigg-Skjellerup    13:35.8 + 1:08 13:38.4 + 0:53 1.09 1.37  52 14.8  174/ 98
Shoemaker-Le (1991a1) 12:09.2 - 9:40 12:11.8 - 9:57 1.01 1.63  36  9.5 81.3/154
P/Shoemak (1984XVIII)  5:02.9 +11:21  5:05.6 +11:25 1.34 1.18  75 15.3  111/ 64
P/Schuster (1978I)     5:04.3 +18:11  5:07.2 +18:15 1.55 1.48  74 13.7  107/ 68
P/Giclas (1992l)       3:26.5 + 8:52  3:29.2 + 9:02 1.86 1.41  99 14.3 65.0/ 84
P/Ashbrook-Ja (1992j) 16:03.7 -34:33 16:07.0 -34:41 3.14 2.88  95 14.7 21.9/ 78


Used orbital elements (2000.0).
Name of comet     Perihel. T   Perih.q Eccentr Perihel   Node   Inclin   H    G
[P/] Name [Pr/Fi] Ye Mo Day      A.U.      e   Degrees Degrees Degrees Magn   -
-------------------------------------------------------------------------------
Shoemaker (1991d) 91 12 31.186 2.26499 0.99349  74.367 145.129  77.288  4.7 4.5
Helin-Law (1991l) 92 01 20.028 1.51771 1.00042 271.160  11.835  95.457 11.3 0.0
Zanotta- (1991g1) 92 01 31.991 0.64397 1.00005 197.872 254.909  50.028  9.1 1.5
Tanaka-Ma (1992d) 92 04 22.688 1.26143 0.99551  65.473 300.508  79.295  6.9 1.1
Bradfield (1992i) 92 05 25.794 0.59230 1.00000 299.717 159.998 158.564 10.5 4.0
Machholz (1992k)  92 07 11.058 0.82016 1.00000 163.117 235.136  57.747  9.0 4.0
P/Grigg-Skjelleru 92 07 22.138 0.99469 0.66433 359.265 213.340  21.099 13.5 6.0
Shoemake (1991a1) 92 07 24.509 0.83631 0.99988 145.237  49.050 113.498  8.4 1.8
P/Sho (1984XVIII) 92 08 06.875 1.32710 0.66464 317.642  55.433  21.552 13.0 6.0
P/Schuste (1978I) 92 09 06.428 1.53924 0.58952 355.734  50.603  20.134 10.0 6.0
P/Giclas (1992l)  92 09 13.092 1.84679 0.49321 276.486 112.526   7.284  9.5 6.0
P/Ashbroo (1992j) 93 07 14.052 2.31628 0.39491 348.690   2.666  12.501  5.0 6.0

These ephemerides should promote the observing of comets.

These ephemerides were computed by a program of Jost Jahn with an Atari ST
computer.
 
--
------------------------------------------------------------------------------
ABBS AstroMail, the first and most popular German astronomical bulletin board
------------------------- for amateur astronomers ----------------------------
    + 49 5851 7896 / V.21, V.22, V.22bis, V.32, V.42, V.42bis and MNP5
    ------------------------------------------------------------------
Newsgroups: sci.astro