什么时候可以看到Alnilam (NGC1990)？
查看Alnilam (NGC1990)在你所在位置全年的可见性变化。图表显示各季节的观测时段，表格列出所选日期的升起、中天和落下时间。
Alnilam (NGC1990)将持续可见至4月14日，随后因过于接近太阳而暂时从夜空中消失。
观测Alnilam (NGC1990)的最佳月份
根据Alnilam (NGC1990)在黑夜或暮光期间位于地平线以上的时长，未来一年中最适合观测的月份是2026年12月, 2027年1月, 2026年11月。
Alnilam (NGC1990)全年的可见情况
Alnilam (NGC1990)在 2026-10-24 的可见情况
Alnilam (NGC1990)升起与落下时间表
| 时间 | 高度角 | |
月出，照明比例 88%  | 14:51 | -54° |
| 天文观测时段开始 | 17:47 | -33° |
| Alnilam (NGC1990)升起 | 20:37 | |
| Alnilam (NGC1990)中天 | 02:32 | 51° |
| 月落 | 03:47 | 48° |
| 天文观测时段结束 | 03:57 | 47° |
| 暮光结束 (−12°) | 04:27 | 43° |
| 民用暮光结束 | 04:58 | 39° |
| 日出 | 05:25 | 34° |
| Alnilam (NGC1990)落下 | 08:27 |
跟踪Alnilam (NGC1990)整夜的位置变化
← 2026年10月24日 →
| 时间 | |
| 高度角 | |
| 方位角 |
移动星图可更改时间，并观察Alnilam (NGC1990)在夜空中的位置变化。
Alnilam (NGC1990)每日升起、中天与落下时间
| 日期 | 升起—落下 | 中天 | 暮光 | 坐标 | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2026-10-23 | 20:41 - 08:31 | 02:36 | 16:15 - 05:22 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2026-10-30 | 20:13 - 08:04 | 02:08 | 16:07 - 05:28 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2026-11-06 | 19:46 - 07:36 | 01:41 | 16:00 - 05:36 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2026-11-13 | 19:18 - 07:09 | 01:13 | 15:54 - 05:43 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2026-11-20 | 18:50 - 06:41 | 00:46 | 15:49 - 05:50 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2026-11-27 | 18:23 - 06:14 | 00:18 | 15:46 - 05:57 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2026-12-04 | 17:55 - 05:46 | 23:51 | 15:44 - 06:04 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2026-12-11 | 17:28 - 05:19 | 23:23 | 15:44 - 06:10 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2026-12-18 | 17:00 - 04:51 | 22:56 | 15:46 - 06:15 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2026-12-25 | 16:33 - 04:24 | 22:28 | 15:49 - 06:18 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-01-01 | 16:05 - 03:56 | 22:01 | 15:54 - 06:20 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-01-08 | 15:38 - 03:29 | 21:33 | 16:00 - 06:21 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-01-15 | 15:10 - 03:01 | 21:06 | 16:07 - 06:20 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-01-22 | 14:43 - 02:33 | 20:38 | 16:14 - 06:17 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-01-29 | 14:15 - 02:06 | 20:11 | 16:22 - 06:12 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-02-05 | 13:48 - 01:38 | 19:43 | 16:29 - 06:06 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-02-12 | 13:20 - 01:11 | 19:16 | 16:37 - 05:59 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-02-19 | 12:53 - 00:43 | 18:48 | 16:44 - 05:51 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-02-26 | 12:25 - 00:16 | 18:21 | 16:52 - 05:42 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-03-05 | 11:58 - 23:48 | 17:53 | 16:59 - 05:33 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-03-12 | 11:30 - 23:21 | 17:25 | 17:05 - 05:23 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-03-19 | 11:03 - 22:53 | 16:58 | 17:12 - 05:12 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-03-26 | 10:35 - 22:26 | 16:30 | 17:18 - 05:02 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-04-02 | 10:08 - 21:58 | 16:03 | 17:24 - 04:51 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-04-09 | 09:40 - 21:31 | 15:35 | 17:31 - 04:41 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-04-16 | 09:13 - 21:03 | 15:08 | 17:37 - 04:31 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-04-23 | 08:41 - 20:32 | 14:36 | 17:43 - 04:22 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-04-30 | 08:14 - 20:04 | 14:09 | 17:49 - 04:13 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-05-07 | 07:46 - 19:37 | 13:41 | 17:56 - 04:06 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-05-14 | 07:18 - 19:09 | 13:14 | 18:02 - 03:59 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-05-21 | 06:51 - 18:42 | 12:46 | 18:08 - 03:54 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-05-28 | 06:23 - 18:14 | 12:19 | 18:13 - 03:50 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-06-04 | 05:56 - 17:47 | 11:51 | 18:18 - 03:47 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-06-11 | 05:28 - 17:19 | 11:24 | 18:22 - 03:46 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-06-18 | 05:01 - 16:52 | 10:56 | 18:24 - 03:46 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-06-25 | 04:33 - 16:24 | 10:29 | 18:26 - 03:47 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-07-02 | 04:06 - 15:57 | 10:01 | 18:26 - 03:50 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-07-09 | 03:38 - 15:29 | 09:34 | 18:25 - 03:54 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-07-16 | 03:11 - 15:01 | 09:06 | 18:22 - 03:58 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-07-23 | 02:43 - 14:34 | 08:39 | 18:18 - 04:03 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-07-30 | 02:16 - 14:06 | 08:11 | 18:12 - 04:09 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-08-06 | 01:48 - 13:39 | 07:44 | 18:05 - 04:15 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-08-13 | 01:21 - 13:11 | 07:16 | 17:58 - 04:21 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-08-20 | 00:53 - 12:44 | 06:49 | 17:49 - 04:26 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-08-27 | 00:26 - 12:16 | 06:21 | 17:39 - 04:32 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-09-03 | 23:58 - 11:49 | 05:53 | 17:29 - 04:38 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-09-10 | 23:31 - 11:21 | 05:26 | 17:19 - 04:44 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-09-17 | 23:03 - 10:54 | 04:58 | 17:08 - 04:49 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-09-24 | 22:36 - 10:26 | 04:31 | 16:57 - 04:55 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-10-01 | 22:08 - 09:59 | 04:03 | 16:47 - 05:01 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-10-08 | 21:41 - 09:31 | 03:36 | 16:36 - 05:07 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-10-15 | 21:13 - 09:04 | 03:08 | 16:26 - 05:14 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||
| 2027-10-22 | 20:45 - 08:36 | 02:41 | 16:17 - 05:20 | RA: 05h 36m 12s", Dec: -1° 12' 06s @ 猎户座 | |||||