什么时候可以看到河鼓二 (Altair)？
See how 河鼓二 (Altair) visibility changes through the year from your location. The graph shows its seasonal observing windows, while the table gives rise, transit and set times for selected dates.
河鼓二 (Altair)将持续可见至十二月22日，随后因过于接近太阳而暂时从夜空中消失。
Best Months to See 河鼓二 (Altair)
Based on the amount of time 河鼓二 (Altair) is above the horizon during dark or twilight hours, the strongest observing months in the next year are 八月 2027, 九月 2027, 九月 2026.
河鼓二 (Altair)全年的可见情况
河鼓二 (Altair)在 2026-09-07 的可见情况
河鼓二 (Altair)升起与落下时间表
| 时间 | 高度角 | |
| 河鼓二 (Altair)升起 | 13:27 | |
| 月落 | 14:56 | 18° |
| 日落 | 17:27 | 46° |
| 民用暮光开始 | 17:55 | 51° |
| 暮光开始 | 18:26 | 55° |
| 天文观测时段开始 | 18:58 | 59° |
| 河鼓二 (Altair)中天 | 19:53 | 62° |
月出，照明比例 21%  | 23:21 | 35° |
| 河鼓二 (Altair)落下 | 02:19 | |
| 天文观测时段结束 | 03:13 | -10° |
跟踪河鼓二 (Altair)整夜的位置变化
← 2026年九月7日 →
| 时间 | |
| 高度角 | |
| 方位角 |
移动星图可更改时间，并观察河鼓二 (Altair)在夜空中的位置变化。
河鼓二 (Altair)每日升起、中天与落下时间
| 日期 | 升起—落下 | 中天 | 暮光 | 坐标 | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-06 | 13:31 - 02:23 | 19:57 | 17:24 - 04:41 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-09-13 | 13:03 - 01:56 | 19:29 | 17:14 - 04:46 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-09-20 | 12:36 - 01:28 | 19:02 | 17:03 - 04:52 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-09-27 | 12:08 - 01:01 | 18:34 | 16:52 - 04:58 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-10-04 | 11:41 - 00:33 | 18:07 | 16:42 - 05:04 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-10-11 | 11:13 - 00:06 | 17:39 | 16:32 - 05:10 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-10-18 | 10:45 - 23:38 | 17:12 | 16:22 - 05:17 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-10-25 | 10:18 - 23:11 | 16:44 | 16:13 - 05:24 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-11-01 | 09:50 - 22:43 | 16:17 | 16:05 - 05:31 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-11-08 | 09:23 - 22:15 | 15:49 | 15:58 - 05:38 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-11-15 | 08:55 - 21:48 | 15:22 | 15:52 - 05:45 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-11-22 | 08:24 - 21:17 | 14:50 | 15:48 - 05:52 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-11-29 | 07:56 - 20:49 | 14:23 | 15:45 - 05:59 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-12-06 | 07:29 - 20:21 | 13:55 | 15:44 - 06:06 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-12-13 | 07:01 - 19:54 | 13:28 | 15:44 - 06:12 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-12-20 | 06:34 - 19:26 | 13:00 | 15:47 - 06:16 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2026-12-27 | 06:06 - 18:59 | 12:33 | 15:51 - 06:19 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-01-03 | 05:39 - 18:31 | 12:05 | 15:56 - 06:21 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-01-10 | 05:11 - 18:04 | 11:38 | 16:02 - 06:21 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-01-17 | 04:44 - 17:36 | 11:10 | 16:09 - 06:19 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-01-24 | 04:16 - 17:09 | 10:43 | 16:16 - 06:16 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-01-31 | 03:49 - 16:41 | 10:15 | 16:24 - 06:11 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-02-07 | 03:21 - 16:14 | 09:47 | 16:32 - 06:05 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-02-14 | 02:54 - 15:46 | 09:20 | 16:39 - 05:57 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-02-21 | 02:26 - 15:19 | 08:52 | 16:47 - 05:49 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-02-28 | 01:59 - 14:51 | 08:25 | 16:54 - 05:40 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-03-07 | 01:31 - 14:24 | 07:57 | 17:00 - 05:30 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-03-14 | 01:04 - 13:56 | 07:30 | 17:07 - 05:20 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-03-21 | 00:36 - 13:29 | 07:02 | 17:14 - 05:09 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-03-28 | 00:08 - 13:01 | 06:35 | 17:20 - 04:59 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-04-04 | 23:41 - 12:34 | 06:07 | 17:26 - 04:48 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-04-11 | 23:13 - 12:06 | 05:40 | 17:32 - 04:38 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-04-18 | 22:46 - 11:39 | 05:12 | 17:39 - 04:29 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-04-25 | 22:18 - 11:11 | 04:45 | 17:45 - 04:19 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-05-02 | 21:51 - 10:43 | 04:17 | 17:51 - 04:11 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-05-09 | 21:23 - 10:16 | 03:50 | 17:57 - 04:04 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-05-16 | 20:56 - 09:48 | 03:22 | 18:03 - 03:57 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-05-23 | 20:28 - 09:21 | 02:55 | 18:09 - 03:52 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-05-30 | 20:01 - 08:53 | 02:27 | 18:14 - 03:49 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-06-06 | 19:33 - 08:26 | 02:00 | 18:19 - 03:46 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-06-13 | 19:06 - 07:58 | 01:32 | 18:22 - 03:45 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-06-20 | 18:38 - 07:31 | 01:05 | 18:25 - 03:46 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-06-27 | 18:11 - 07:03 | 00:37 | 18:26 - 03:48 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-07-04 | 17:43 - 06:36 | 00:09 | 18:26 - 03:51 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-07-11 | 17:16 - 06:08 | 23:42 | 18:24 - 03:55 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-07-18 | 16:48 - 05:41 | 23:14 | 18:21 - 04:00 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-07-25 | 16:21 - 05:13 | 22:47 | 18:16 - 04:05 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-08-01 | 15:53 - 04:46 | 22:19 | 18:10 - 04:11 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-08-08 | 15:26 - 04:18 | 21:52 | 18:03 - 04:16 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-08-15 | 14:58 - 03:51 | 21:24 | 17:55 - 04:22 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-08-22 | 14:31 - 03:23 | 20:57 | 17:46 - 04:28 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-08-29 | 14:03 - 02:56 | 20:29 | 17:37 - 04:34 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||
| 2027-09-05 | 13:35 - 02:28 | 20:02 | 17:26 - 04:40 | RA: 19h 50m 46s", Dec: 08° 52' 05s @ 天鹰座 | |||||