什么时候可以看到NGC3640？
查看NGC3640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。
NGC3640将持续可见至6月24日，随后因过于接近太阳而暂时从夜空中消失。
观测NGC3640的最佳月份
根据NGC3640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2027年2月, 2027年3月, 2027年1月。
NGC3640全年的可见情况
NGC3640在 2026-11-06 的可见情况
NGC3640升起与落下时间表
| 时间 | 高度角 | |
月出，照明比例 18.4%  | 22:13 | 6° |
| NGC3640中天 | 03:53 | 53° |
| NGC3640落下 | 10:03 | |
| 月落 | 10:25 | -4° |
| 天文观测时段开始 | 13:57 | -39° |
| NGC3640升起 | 21:40 | |
| 天文观测时段结束 | 00:34 | 33° |
| 暮光结束 (−12°) | 01:06 | 38° |
| 民用暮光结束 | 01:38 | 43° |
| 日出 | 02:08 | 47° |
跟踪NGC3640整夜的位置变化
← 2026年11月6日 →
| 时间 | |
| 高度角 | |
| 方位角 |
移动星图可更改时间，并观察NGC3640在夜空中的位置变化。
NGC3640每日升起、中天与落下时间
| 日期 | 升起—落下 | 中天 | 暮光 | 坐标 | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2026-11-06 | 21:40 - 09:59 | 03:49 | 12:19 - 02:05 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2026-11-13 | 21:12 - 09:32 | 03:22 | 12:13 - 02:13 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2026-11-20 | 20:45 - 09:04 | 02:54 | 12:07 - 02:21 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2026-11-27 | 20:17 - 08:37 | 02:27 | 12:03 - 02:29 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2026-12-04 | 19:50 - 08:09 | 01:59 | 12:01 - 02:36 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2026-12-11 | 19:22 - 07:42 | 01:32 | 12:01 - 02:42 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2026-12-18 | 18:54 - 07:14 | 01:04 | 12:03 - 02:47 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2026-12-25 | 18:27 - 06:47 | 00:37 | 12:06 - 02:51 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-01-01 | 17:59 - 06:19 | 00:09 | 12:11 - 02:53 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-01-08 | 17:32 - 05:52 | 23:42 | 12:17 - 02:53 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-01-15 | 17:04 - 05:24 | 23:14 | 12:25 - 02:51 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-01-22 | 16:37 - 04:57 | 22:47 | 12:32 - 02:48 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-01-29 | 16:09 - 04:29 | 22:19 | 12:41 - 02:42 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-02-05 | 15:42 - 04:01 | 21:52 | 12:49 - 02:36 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-02-12 | 15:14 - 03:34 | 21:24 | 12:57 - 02:28 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-02-19 | 14:47 - 03:06 | 20:57 | 13:06 - 02:19 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-02-26 | 14:19 - 02:39 | 20:29 | 13:14 - 02:09 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-03-05 | 13:52 - 02:11 | 20:02 | 13:21 - 01:59 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-03-12 | 13:24 - 01:44 | 19:34 | 13:29 - 01:48 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-03-19 | 12:57 - 01:16 | 19:07 | 13:36 - 01:37 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-03-26 | 12:29 - 00:49 | 18:39 | 13:43 - 01:26 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-04-02 | 12:02 - 00:21 | 18:11 | 13:50 - 01:14 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-04-09 | 11:34 - 23:54 | 17:44 | 13:57 - 01:03 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-04-16 | 11:07 - 23:26 | 17:16 | 14:05 - 00:53 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-04-23 | 10:39 - 22:59 | 16:49 | 14:12 - 00:43 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-04-30 | 10:12 - 22:31 | 16:21 | 14:19 - 00:33 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-05-07 | 09:44 - 22:04 | 15:54 | 14:26 - 00:25 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-05-14 | 09:16 - 21:36 | 15:26 | 14:32 - 00:18 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-05-21 | 08:49 - 21:09 | 14:59 | 14:39 - 00:12 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-05-28 | 08:21 - 20:41 | 14:31 | 14:45 - 00:07 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-06-04 | 07:54 - 20:14 | 14:04 | 14:50 - 00:04 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-06-11 | 07:22 - 19:42 | 13:32 | 14:54 - 00:02 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-06-18 | 06:55 - 19:15 | 13:05 | 14:57 - 00:02 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-06-25 | 06:27 - 18:47 | 12:37 | 14:59 - 00:04 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-07-02 | 06:00 - 18:20 | 12:10 | 14:59 - 00:07 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-07-09 | 05:32 - 17:52 | 11:42 | 14:57 - 00:11 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-07-16 | 05:05 - 17:25 | 11:15 | 14:54 - 00:16 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-07-23 | 04:37 - 16:57 | 10:47 | 14:49 - 00:21 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-07-30 | 04:10 - 16:29 | 10:20 | 14:43 - 00:27 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-08-06 | 03:42 - 16:02 | 09:52 | 14:35 - 00:34 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-08-13 | 03:15 - 15:34 | 09:25 | 14:27 - 00:40 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-08-20 | 02:47 - 15:07 | 08:57 | 14:17 - 00:47 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-08-27 | 02:20 - 14:39 | 08:30 | 14:07 - 00:54 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-09-03 | 01:52 - 14:12 | 08:02 | 13:56 - 01:00 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-09-10 | 01:25 - 13:44 | 07:35 | 13:45 - 01:07 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-09-17 | 00:57 - 13:17 | 07:07 | 13:34 - 01:13 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-09-24 | 00:30 - 12:49 | 06:39 | 13:22 - 01:20 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-10-01 | 00:02 - 12:22 | 06:12 | 13:11 - 01:27 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-10-08 | 23:35 - 11:54 | 05:44 | 12:59 - 01:34 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-10-15 | 23:07 - 11:27 | 05:17 | 12:49 - 01:41 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-10-22 | 22:40 - 10:59 | 04:49 | 12:38 - 01:48 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-10-29 | 22:12 - 10:32 | 04:22 | 12:29 - 01:56 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||
| 2027-11-05 | 21:44 - 10:04 | 03:54 | 12:21 - 02:04 | RA: 11h 21m 06s", Dec: 03° 14' 05s @ 狮子座 | |||||