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SHON - Visual estimates



TW Cas

Sobeslav, 1993 monocular Sport (refractor) 25 x 70 Prague, Petrin Hill Observatory, 1994-1995 20 cm refractor (focal length 137 cm), magnifying power 55

Finding chart and comparison stars: BRNO K (different comparison stars were used in 1993 and 1994-1995)

Identifications of the variable and the comparison stars: TW Cas = HIP 12906 (V=8.35 mag) Comparison stars used at the Petrin Hill Observatory (different from the stars denoted in the BRNO chart that were used at Sobeslav): a = HIP 12512 (V=8.59 mag) b = HIP 13003 (V=9.10 mag)

1993: 24 estimates 1994: 77 estimates 1995: 16 estimates Total: 117 estimates

Date UT Estimate yyyy hh:mm dd.mm.

1993 01.08. 22:33 d 2 v 1 e 23:02 d 1 v 2 e 23:14 c 3 v 0 d 3 e 23:25 c 3 v 1 d 23:38 c 4 v 2 d 23:53 c 2 v 2 d 02.08. 0:30 c 1 v 3 d 1:09 c 1 v 3 d 1993 21.08. 20:40 c 3 v 2 d 21:04 c 4 v 1 d 21:29 c 4 v 0 d 2 e 22:05 d 3 v 2 e 22:28 d 3 v 1 e 22:56 e 1 v 23:15 d 3 v 1 e 23:35 d 3 v 2 e 23:53 d 2 v 3 e 22.08. 0:31 c 4 v 0 d 3 e 0:49 c 3 v 1 d 1:11 c 3 v 2 d 1:29 c 2 v 3 d 1:42 c 2 v 3 d 2:09 c 1 v 3 d 2:43 c 1 v 3 d

1994 03.08. 22:15 v 3 a 22:33 v 3 a 22:45 v 3 a 23:00 v 2 a 23:15 v 2 a 23:31 v 1 a 23:46 a 0 v 3 c it is possible that instead of "c" 04.08. 0:03 a 1 v 3 c it should be "b" 0:21 a 1 v 3 c 0:40 a 0 v 3 c 0:52 v 1 a 1:10 v 2 a 1:25 v 3 a 1:43 v 3 a 2:04 v 3 a 2:30 v 3 a 1994 02.10. 20:20 v 3 a 20:47 v 3 a 21:09 v 3 a 21:24 v 3 a 21:36 v 2 a 21:47 v 2 a 21:58 v 2 a 22:12 v 1 a 22:32 a 0 v 3 b 22:49 a 1 v 3 b 23:04 v 1 a 23:22 v 1 a 23:43 v 2 a 23:54 a 0 v 3 b 1994 01.11. 21:55 v 3 a 22:13 v 3 a 22:26 v 3 a 22:43 v 2 a 22:53 v 2 a 23:05 v 2 a 23:19 v 1 a 23:31 v 1 a 23:46 a 0 v 3 c 23:59 a 1 v 2 c 02.11. 0:06 a 0 v 3 c 0:08 v 1 a 0:16 v 1 a 0:23 v 2 a 0:29 v 2 a 0:39 v 3 a 0:51 v 3 a 1994 04.11. 18:23 v 3 a 18:41 v 3 a 19:01 v 2 a 19:11 v 2 a 19:33 v 1 a 19:44 v 1 a 19:59 a 0 v 3 b 20:17 a 0 v 3 b 20:35 a 0 v 3 b 20:57 v 2 a 21:12 v 2 a 21:23 v 3 a 21:45 v 3 a 1994 01.12. 21:55 v 1 a 22:10 v 1 a 22:25 a 0 v 3 b 22:40 a 0 v 3 b 22:56 a 1 v 2 b 23:16 a 2 v 2 b 23:36 a 2 v 2 b 23:49 a 2 v 2 b 23:59 a 1 v 2 b 02.12. 0:08 a 1 v 2 b 0:21 a 1 v 2 b 0:42 a 0 v 3 b 0:55 a 0 v 3 b 1:09 v 1 a 1:29 v 2 a 1:48 v 3 a 2:00 v 3 a

1995 01.03. 21:27 v 3 a 21:49 v 3 a 22:06 v 2 a 22:20 v 2 a 22:30 v 1 a 22:40 a 0 v 3 b 22:56 a 1 v 2 b 23:09 a 0 v 3 b 23:25 a 0 v 3 b 23:27 v 1 a 23:38 v 1 a 23:58 v 2 a 02.03. 0:08 v 2 a 0:23 v 2 a 0:34 v 3 a 0:46 v 3 a
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