什么时候可以看到NGC4490？
查看NGC4490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。
NGC4490将在10月19日前后远离太阳并再次可见。
观测NGC4490的最佳月份
根据NGC4490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。
NGC4490全年的可见情况
NGC4490在 2026-09-28 的可见情况
NGC4490升起与落下时间表
| 时间 | 高度角 | |
| NGC4490中天 | 11:11 | 86° |
| 日落 | 16:55 | 26° |
月出，照明比例 97.8%  | 17:18 | 23° |
| 民用暮光开始 | 17:22 | 22° |
| 暮光开始 (−12°) | 17:53 | 17° |
| 天文观测时段开始 | 18:23 | 13° |
| NGC4490落下 | 20:01 | |
| NGC4490升起 | 02:18 | |
| 天文观测时段结束 | 03:33 | 9° |
| 暮光结束 (−12°) | 04:04 | 14° |
| 民用暮光结束 | 04:34 | 18° |
| 日出 | 05:02 | 23° |
| 月落 | 07:17 | 46° |
跟踪NGC4490整夜的位置变化
← 2026年9月28日 →
| 时间 | |
| 高度角 | |
| 方位角 |
移动星图可更改时间，并观察NGC4490在夜空中的位置变化。
NGC4490每日升起、中天与落下时间
| 日期 | 升起—落下 | 中天 | 暮光 | 坐标 | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-28 | 02:18 - 19:57 | 11:07 | 16:51 - 04:59 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-10-05 | 01:50 - 19:29 | 10:40 | 16:40 - 05:05 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-10-12 | 01:23 - 19:02 | 10:12 | 16:30 - 05:11 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-10-19 | 00:55 - 18:34 | 09:45 | 16:21 - 05:18 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-10-26 | 00:28 - 18:07 | 09:17 | 16:12 - 05:24 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-11-02 | 00:00 - 17:39 | 08:50 | 16:04 - 05:32 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-11-09 | 23:33 - 17:12 | 08:22 | 15:57 - 05:39 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-11-16 | 23:05 - 16:44 | 07:55 | 15:51 - 05:46 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-11-23 | 22:38 - 16:17 | 07:27 | 15:47 - 05:53 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-11-30 | 22:10 - 15:49 | 07:00 | 15:45 - 06:00 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-12-07 | 21:43 - 15:22 | 06:32 | 15:44 - 06:07 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-12-14 | 21:15 - 14:54 | 06:05 | 15:45 - 06:12 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-12-21 | 20:48 - 14:27 | 05:37 | 15:47 - 06:17 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2026-12-28 | 20:20 - 13:59 | 05:10 | 15:51 - 06:19 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-01-04 | 19:53 - 13:32 | 04:42 | 15:56 - 06:21 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-01-11 | 19:25 - 13:04 | 04:15 | 16:03 - 06:20 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-01-18 | 18:58 - 12:37 | 03:47 | 16:10 - 06:19 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-01-25 | 18:30 - 12:09 | 03:20 | 16:17 - 06:15 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-02-01 | 18:03 - 11:42 | 02:52 | 16:25 - 06:10 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-02-08 | 17:35 - 11:14 | 02:25 | 16:33 - 06:04 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-02-15 | 17:07 - 10:47 | 01:57 | 16:40 - 05:56 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-02-22 | 16:40 - 10:19 | 01:30 | 16:48 - 05:48 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-03-01 | 16:12 - 09:52 | 01:02 | 16:55 - 05:38 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-03-08 | 15:45 - 09:24 | 00:34 | 17:01 - 05:28 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-03-15 | 15:17 - 08:56 | 00:07 | 17:08 - 05:18 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-03-22 | 14:50 - 08:29 | 23:39 | 17:14 - 05:08 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-03-29 | 14:22 - 08:01 | 23:12 | 17:21 - 04:57 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-04-05 | 13:55 - 07:34 | 22:44 | 17:27 - 04:47 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-04-12 | 13:27 - 07:06 | 22:17 | 17:33 - 04:37 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-04-19 | 13:00 - 06:39 | 21:49 | 17:39 - 04:27 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-04-26 | 12:32 - 06:11 | 21:22 | 17:46 - 04:18 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-05-03 | 12:05 - 05:44 | 20:54 | 17:52 - 04:10 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-05-10 | 11:37 - 05:16 | 20:27 | 17:58 - 04:03 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-05-17 | 11:10 - 04:49 | 19:59 | 18:04 - 03:57 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-05-24 | 10:42 - 04:21 | 19:32 | 18:10 - 03:52 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-05-31 | 10:15 - 03:54 | 19:04 | 18:15 - 03:48 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-06-07 | 09:47 - 03:26 | 18:37 | 18:19 - 03:46 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-06-14 | 09:20 - 02:59 | 18:09 | 18:23 - 03:45 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-06-21 | 08:52 - 02:31 | 17:42 | 18:25 - 03:46 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-06-28 | 08:25 - 02:04 | 17:14 | 18:26 - 03:48 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-07-05 | 07:57 - 01:36 | 16:47 | 18:26 - 03:51 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-07-12 | 07:30 - 01:09 | 16:19 | 18:24 - 03:56 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-07-19 | 07:02 - 00:41 | 15:52 | 18:20 - 04:00 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-07-26 | 06:34 - 00:14 | 15:24 | 18:15 - 04:06 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-08-02 | 06:03 - 23:42 | 14:53 | 18:09 - 04:11 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-08-09 | 05:35 - 23:15 | 14:25 | 18:02 - 04:17 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-08-16 | 05:08 - 22:47 | 13:58 | 17:54 - 04:23 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-08-23 | 04:40 - 22:20 | 13:30 | 17:45 - 04:29 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-08-30 | 04:13 - 21:52 | 13:02 | 17:35 - 04:35 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-09-06 | 03:45 - 21:24 | 12:35 | 17:25 - 04:40 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-09-13 | 03:18 - 20:57 | 12:07 | 17:14 - 04:46 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-09-20 | 02:50 - 20:29 | 11:40 | 17:04 - 04:52 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||
| 2027-09-27 | 02:23 - 20:02 | 11:12 | 16:53 - 04:58 | RA: 12h 30m 36s", Dec: 41° 38' 38s @ 猎犬座 | |||||