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V2051 Oph superoutburst? 食のある SU UMa 型矮新星 (HT Cas のような天体) がおそらくスーパーアウト バーストです。非常に観測価値が高いと思われます。観測をされる場合は積分 時間は可能な範囲で短くして(10秒ぐらい)、食の詳細を受けるのを狙うのと、 食外のスーパーハンプもしっかり追うことが重要なポイントと思われます。 天気がちょっと、ですが、季節的にはかなりよい条件なので、可能な方は 観測を試みていただけますと有難いです。 ＃ MEI/NEKO さんは今回どうでしょうか？ The recent outburst of the eclipsing SU UMa-type dwarf nova (cf. Kiyota and Kato 1998, IBVS No. 4644) V2051 Oph seems to have developed into a full superoutburst. Time-resolved CCD observations covering several orbital cycles are very strongly encouraged! YYYYMMDD(UT) mag observer 20030409.650 <150 (Rod Stubbings) 20030413.756 145 (Rod Stubbings) 20030418.619 130 (Rod Stubbings) The eclipsing SU UMa-type dwarf novae can provide crucial information about the location and structure of the superhump light source, through contemporaneous superhump and eclipse observations. Please use short integration times (preferably around 10s) to record eclipse profiles in detail! Excellent examples of eclipsing SU UMa-type dwarf novae can be found at the following URLs: http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/tmzv85.html (IY UMa) http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/dvuma9912.html and links therein. [Further communications on V2051 Oph observations will be relayed through the decicated mailing list vsnet-campaign-v2051oph, not vsnet-alert unless a very dramatic change is observed.] Eclipse predictions (times are UT, geocentric): 20030413 00:00:00 20030413 01:29:54 20030413 02:59:47 20030413 04:29:40 20030413 05:59:34 20030413 07:29:27 20030413 08:59:20 20030413 10:29:14 20030413 11:59:07 20030413 13:29:00 20030413 14:58:54 20030413 16:28:47 20030413 17:58:40 20030413 19:28:34 20030413 20:58:27 20030413 22:28:20 20030413 23:58:14 20030414 01:28:07 20030414 02:58:00 20030414 04:27:54 20030414 05:57:47 20030414 07:27:40 20030414 08:57:34 20030414 10:27:27 20030414 11:57:20 20030414 13:27:14 20030414 14:57:07 20030414 16:27:00 20030414 17:56:54 20030414 19:26:47 20030414 20:56:40 20030414 22:26:34 20030414 23:56:27 20030415 01:26:20 20030415 02:56:14 20030415 04:26:07 20030415 05:56:00 20030415 07:25:54 20030415 08:55:47 20030415 10:25:40 20030415 11:55:34 20030415 13:25:27 20030415 14:55:20 20030415 16:25:14 20030415 17:55:07 20030415 19:25:00 20030415 20:54:54 20030415 22:24:47 20030415 23:54:40 20030416 01:24:34 20030416 02:54:27 20030416 04:24:21 20030416 05:54:14 20030416 07:24:07 20030416 08:54:01 20030416 10:23:54 20030416 11:53:47 20030416 13:23:41 20030416 14:53:34 20030416 16:23:27 20030416 17:53:21 20030416 19:23:14 20030416 20:53:07 20030416 22:23:01 20030416 23:52:54 20030417 01:22:47 20030417 02:52:41 20030417 04:22:34 20030417 05:52:27 20030417 07:22:21 20030417 08:52:14 20030417 10:22:07 20030417 11:52:01 20030417 13:21:54 20030417 14:51:47 20030417 16:21:41 20030417 17:51:34 20030417 19:21:28 20030417 20:51:21 20030417 22:21:14 20030417 23:51:08 20030418 01:21:01 20030418 02:50:54 20030418 04:20:48 20030418 05:50:41 20030418 07:20:34 20030418 08:50:28 20030418 10:20:21 20030418 11:50:14 20030418 13:20:08 20030418 14:50:01 20030418 16:19:54 20030418 17:49:48 20030418 19:19:41 20030418 20:49:35 20030418 22:19:28 20030418 23:49:21 20030419 01:19:15 20030419 02:49:08 20030419 04:19:01 20030419 05:48:55 20030419 07:18:48 20030419 08:48:41 20030419 10:18:35 20030419 11:48:28 20030419 13:18:22 20030419 14:48:15 20030419 16:18:08 20030419 17:48:02 20030419 19:17:55 20030419 20:47:48 20030419 22:17:42 20030419 23:47:35 20030420 01:17:28 20030420 02:47:22 20030420 04:17:15 20030420 05:47:09 20030420 07:17:02 20030420 08:46:55 20030420 10:16:49 20030420 11:46:42 20030420 13:16:35 20030420 14:46:29 20030420 16:16:22 20030420 17:46:15 20030420 19:16:09 20030420 20:46:02 20030420 22:15:56 20030420 23:45:49 20030421 01:15:42 20030421 02:45:36 20030421 04:15:29 20030421 05:45:22 20030421 07:15:16 20030421 08:45:09 20030421 10:15:03 20030421 11:44:56 20030421 13:14:49 20030421 14:44:43 20030421 16:14:36 20030421 17:44:29 20030421 19:14:23 20030421 20:44:16 20030421 22:14:10 20030421 23:44:03 20030422 01:13:56 20030422 02:43:50 20030422 04:13:43 20030422 05:43:36 20030422 07:13:30 20030422 08:43:23 20030422 10:13:17 20030422 11:43:10 20030422 13:13:03 20030422 14:42:57 20030422 16:12:50 20030422 17:42:43 20030422 19:12:37 20030422 20:42:30 20030422 22:12:24 20030422 23:42:17 20030423 01:12:10 20030423 02:42:04 20030423 04:11:57 20030423 05:41:51 20030423 07:11:44 20030423 08:41:37 20030423 10:11:31 20030423 11:41:24 20030423 13:11:17 20030423 14:41:11 20030423 16:11:04 20030423 17:40:58 20030423 19:10:51 20030423 20:40:44 20030423 22:10:38 20030423 23:40:31 20030424 01:10:25 20030424 02:40:18 20030424 04:10:11 20030424 05:40:05 20030424 07:09:58 20030424 08:39:52 20030424 10:09:45 20030424 11:39:38 20030424 13:09:32 20030424 14:39:25 20030424 16:09:18 20030424 17:39:12 20030424 19:09:05 20030424 20:38:59 20030424 22:08:52 20030424 23:38:45 20030425 01:08:39 20030425 02:38:32 20030425 04:08:26 20030425 05:38:19 20030425 07:08:12 20030425 08:38:06 20030425 10:07:59 20030425 11:37:53 20030425 13:07:46 20030425 14:37:39 20030425 16:07:33 20030425 17:37:26 20030425 19:07:20 20030425 20:37:13 20030425 22:07:06 20030425 23:37:00 20030426 01:06:53 20030426 02:36:47 20030426 04:06:40 20030426 05:36:33 20030426 07:06:27 20030426 08:36:20 20030426 10:06:14 20030426 11:36:07 20030426 13:06:00 20030426 14:35:54 20030426 16:05:47 20030426 17:35:41 20030426 19:05:34 20030426 20:35:28 20030426 22:05:21 20030426 23:35:14 20030427 01:05:08 20030427 02:35:01 20030427 04:04:55 20030427 05:34:48 20030427 07:04:41 20030427 08:34:35 20030427 10:04:28 20030427 11:34:22 20030427 13:04:15 20030427 14:34:08 20030427 16:04:02 20030427 17:33:55 20030427 19:03:49 20030427 20:33:42 20030427 22:03:36 20030427 23:33:29 20030428 01:03:22 20030428 02:33:16 20030428 04:03:09 20030428 05:33:03 20030428 07:02:56 20030428 08:32:49 20030428 10:02:43 20030428 11:32:36 20030428 13:02:30 20030428 14:32:23 20030428 16:02:17 20030428 17:32:10 20030428 19:02:03 20030428 20:31:57 20030428 22:01:50 20030428 23:31:44 20030429 01:01:37 20030429 02:31:31 20030429 04:01:24 20030429 05:31:17 20030429 07:01:11 20030429 08:31:04 20030429 10:00:58 20030429 11:30:51 20030429 13:00:44 20030429 14:30:38 20030429 16:00:31 20030429 17:30:25 20030429 19:00:18 20030429 20:30:12 20030429 22:00:05 20030429 23:29:58 20030430 00:59:52 20030430 02:29:45 20030430 03:59:39 20030430 05:29:32 20030430 06:59:26 20030430 08:29:19 20030430 09:59:13 20030430 11:29:06 20030430 12:58:59 20030430 14:28:53 20030430 15:58:46 20030430 17:28:40 20030430 18:58:33 20030430 20:28:27 20030430 21:58:20 20030430 23:28:13 20030501 00:58:07 20030501 02:28:00 20030501 03:57:54 20030501 05:27:47 20030501 06:57:41 20030501 08:27:34 20030501 09:57:27 20030501 11:27:21 20030501 12:57:14 20030501 14:27:08 20030501 15:57:01 20030501 17:26:55 20030501 18:56:48 20030501 20:26:42 20030501 21:56:35 20030501 23:26:28
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