周年升起、中天与落下时间表： IC1990
周年可见性图览
IC1990在 2026-08-18 的可见情况
IC1990升起与落下时间表
| 时间 | 高度角 | |
月出，照明比例 21%  | 09:49 | 30° |
| 天文观测时段开始 | 19:32 | -20° |
| 月落 | 20:26 | -13° |
| IC1990升起 | 21:47 | |
| 天文观测时段结束 | 02:51 | 58° |
| 暮光结束 | 03:26 | 65° |
| 民用暮光结束 | 03:59 | 70° |
| 日出 | 04:28 | 75° |
| IC1990中天 | 05:07 | 77° |
跟踪IC1990整夜的位置变化
← 2026年八月18日 →
| 时间 | |
| 高度角 | |
| 方位角 |
移动星图可更改时间，并观察IC1990在夜空中的位置变化。
周年升起、中天与落下时间
| 日期 | 升起—落下 | 中天 | 暮光 | 坐标 | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2026-08-17 | 21:51 - 12:30 | 05:11 | 17:52 - 04:24 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-08-24 | 21:24 - 12:03 | 04:43 | 17:43 - 04:30 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-08-31 | 20:56 - 11:35 | 04:16 | 17:33 - 04:36 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-09-07 | 20:29 - 11:08 | 03:48 | 17:23 - 04:41 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-09-14 | 20:01 - 10:40 | 03:21 | 17:12 - 04:47 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-09-21 | 19:33 - 10:13 | 02:53 | 17:02 - 04:53 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-09-28 | 19:06 - 09:45 | 02:26 | 16:51 - 04:59 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-10-05 | 18:38 - 09:18 | 01:58 | 16:40 - 05:05 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-10-12 | 18:11 - 08:50 | 01:30 | 16:30 - 05:11 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-10-19 | 17:43 - 08:23 | 01:03 | 16:21 - 05:18 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-10-26 | 17:16 - 07:55 | 00:35 | 16:12 - 05:24 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-11-02 | 16:48 - 07:27 | 00:08 | 16:04 - 05:32 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-11-09 | 16:21 - 07:00 | 23:40 | 15:57 - 05:39 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-11-16 | 15:53 - 06:32 | 23:13 | 15:51 - 05:46 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-11-23 | 15:26 - 06:05 | 22:45 | 15:47 - 05:53 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-11-30 | 14:58 - 05:37 | 22:18 | 15:45 - 06:00 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-12-07 | 14:31 - 05:10 | 21:50 | 15:44 - 06:07 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-12-14 | 14:03 - 04:42 | 21:23 | 15:45 - 06:12 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-12-21 | 13:36 - 04:15 | 20:55 | 15:47 - 06:17 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2026-12-28 | 13:08 - 03:47 | 20:28 | 15:51 - 06:19 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-01-04 | 12:41 - 03:20 | 20:00 | 15:56 - 06:21 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-01-11 | 12:13 - 02:52 | 19:33 | 16:03 - 06:20 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-01-18 | 11:46 - 02:25 | 19:05 | 16:10 - 06:19 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-01-25 | 11:18 - 01:57 | 18:38 | 16:17 - 06:15 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-02-01 | 10:51 - 01:30 | 18:10 | 16:25 - 06:10 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-02-08 | 10:23 - 01:02 | 17:43 | 16:33 - 06:04 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-02-15 | 09:56 - 00:35 | 17:15 | 16:40 - 05:56 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-02-22 | 09:28 - 00:07 | 16:48 | 16:48 - 05:48 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-03-01 | 09:00 - 23:40 | 16:20 | 16:55 - 05:38 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-03-08 | 08:33 - 23:12 | 15:53 | 17:01 - 05:28 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-03-15 | 08:05 - 22:45 | 15:25 | 17:08 - 05:18 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-03-22 | 07:34 - 22:13 | 14:54 | 17:14 - 05:08 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-03-29 | 07:06 - 21:46 | 14:26 | 17:21 - 04:57 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-04-05 | 06:39 - 21:18 | 13:58 | 17:27 - 04:47 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-04-12 | 06:11 - 20:51 | 13:31 | 17:33 - 04:37 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-04-19 | 05:44 - 20:23 | 13:03 | 17:39 - 04:27 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-04-26 | 05:16 - 19:55 | 12:36 | 17:46 - 04:18 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-05-03 | 04:49 - 19:28 | 12:08 | 17:52 - 04:10 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-05-10 | 04:21 - 19:00 | 11:41 | 17:58 - 04:03 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-05-17 | 03:54 - 18:33 | 11:13 | 18:04 - 03:57 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-05-24 | 03:26 - 18:05 | 10:46 | 18:10 - 03:52 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-05-31 | 02:59 - 17:38 | 10:18 | 18:15 - 03:48 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-06-07 | 02:31 - 17:10 | 09:51 | 18:19 - 03:46 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-06-14 | 02:04 - 16:43 | 09:23 | 18:23 - 03:45 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-06-21 | 01:36 - 16:15 | 08:56 | 18:25 - 03:46 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-06-28 | 01:09 - 15:48 | 08:28 | 18:26 - 03:48 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-07-05 | 00:41 - 15:20 | 08:01 | 18:26 - 03:51 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-07-12 | 00:14 - 14:53 | 07:33 | 18:24 - 03:56 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-07-19 | 23:46 - 14:25 | 07:06 | 18:20 - 04:00 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-07-26 | 23:19 - 13:58 | 06:38 | 18:15 - 04:06 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-08-02 | 22:51 - 13:30 | 06:11 | 18:09 - 04:11 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-08-09 | 22:24 - 13:03 | 05:43 | 18:02 - 04:17 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||
| 2027-08-16 | 21:56 - 12:35 | 05:16 | 17:54 - 04:23 | RA: 03h 47m 13s", Dec: 24° 20' 02s @ 金牛座 | |||||