When Is Alcor Visible During the Year?
See how Alcor 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.
Alcor will remain visible until October 3, when it moves too close to the Sun and temporarily disappears from the night sky.
Best Months to See Alcor
Based on the amount of time Alcor is above the horizon during dark or twilight hours, the strongest observing months in the next year are December 2026, January 2027, November 2026.
Alcor Visibility Throughout the Year
Alcor visibility on 2026-09-07
Alcor Visible all night
Alcor rise and set timetable
| Time | Elevation | |
| Alcor is always above the horizon | ||
| Alcor transit | 13:28 | 72° |
| Moonset | 14:56 | 67° |
| Sunset | 17:27 | 47° |
| Civil sunset | 17:55 | 43° |
| Twilight start | 18:26 | 38° |
| Astronomical observing session begins | 18:58 | 34° |
| Alcor is always above the horizon | ||
Moonrise, 21% illuminated  | 23:21 | 6° |
| Astronomical observing session ends | 03:13 | 5° |
| Twilight end | 03:45 | 7° |
| Civil sunrise | 04:17 | 9° |
| Sunrise | 04:44 | 12° |
Track Alcor Position Throughout the Night
← 7 September 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Alcor changing position in the night sky.
Alcor Rise, Transit and Set Times by Date
| Date | Rise — Set | Transit | Twilight | Coordinates | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-06 | Alcor is always above the horizon | 13:28 | 17:24 - 04:41 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-09-13 | Alcor is always above the horizon | 13:01 | 17:14 - 04:46 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-09-20 | Alcor is always above the horizon | 12:33 | 17:03 - 04:52 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-09-27 | Alcor is always above the horizon | 12:06 | 16:52 - 04:58 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-10-04 | Alcor is always above the horizon | 11:38 | 16:42 - 05:04 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-10-11 | Alcor is always above the horizon | 11:11 | 16:32 - 05:10 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-10-18 | Alcor is always above the horizon | 10:43 | 16:22 - 05:17 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-10-25 | Alcor is always above the horizon | 10:16 | 16:13 - 05:24 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-11-01 | Alcor is always above the horizon | 09:48 | 16:05 - 05:31 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-11-08 | Alcor is always above the horizon | 09:21 | 15:58 - 05:38 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-11-15 | Alcor is always above the horizon | 08:53 | 15:52 - 05:45 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-11-22 | Alcor is always above the horizon | 08:26 | 15:48 - 05:52 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-11-29 | Alcor is always above the horizon | 07:58 | 15:45 - 05:59 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-12-06 | Alcor is always above the horizon | 07:31 | 15:44 - 06:06 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-12-13 | Alcor is always above the horizon | 07:03 | 15:44 - 06:12 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-12-20 | Alcor is always above the horizon | 06:36 | 15:47 - 06:16 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2026-12-27 | Alcor is always above the horizon | 06:08 | 15:51 - 06:19 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-01-03 | Alcor is always above the horizon | 05:41 | 15:56 - 06:21 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-01-10 | Alcor is always above the horizon | 05:13 | 16:02 - 06:21 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-01-17 | Alcor is always above the horizon | 04:46 | 16:09 - 06:19 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-01-24 | Alcor is always above the horizon | 04:18 | 16:16 - 06:16 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-01-31 | Alcor is always above the horizon | 03:50 | 16:24 - 06:11 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-02-07 | Alcor is always above the horizon | 03:23 | 16:32 - 06:05 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-02-14 | Alcor is always above the horizon | 02:55 | 16:39 - 05:57 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-02-21 | Alcor is always above the horizon | 02:28 | 16:47 - 05:49 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-02-28 | Alcor is always above the horizon | 02:00 | 16:54 - 05:40 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-03-07 | Alcor is always above the horizon | 01:33 | 17:00 - 05:30 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-03-14 | Alcor is always above the horizon | 01:05 | 17:07 - 05:20 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-03-21 | Alcor is always above the horizon | 00:38 | 17:14 - 05:09 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-03-28 | Alcor is always above the horizon | 00:10 | 17:20 - 04:59 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-04-04 | Alcor is always above the horizon | 23:43 | 17:26 - 04:48 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-04-11 | Alcor is always above the horizon | 23:15 | 17:32 - 04:38 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-04-18 | Alcor is always above the horizon | 22:48 | 17:39 - 04:29 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-04-25 | Alcor is always above the horizon | 22:20 | 17:45 - 04:19 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-05-02 | Alcor is always above the horizon | 21:53 | 17:51 - 04:11 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-05-09 | Alcor is always above the horizon | 21:25 | 17:57 - 04:04 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-05-16 | Alcor is always above the horizon | 20:58 | 18:03 - 03:57 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-05-23 | Alcor is always above the horizon | 20:30 | 18:09 - 03:52 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-05-30 | Alcor is always above the horizon | 20:03 | 18:14 - 03:49 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-06-06 | Alcor is always above the horizon | 19:35 | 18:19 - 03:46 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-06-13 | Alcor is always above the horizon | 19:08 | 18:22 - 03:45 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-06-20 | Alcor is always above the horizon | 18:40 | 18:25 - 03:46 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-06-27 | Alcor is always above the horizon | 18:12 | 18:26 - 03:48 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-07-04 | Alcor is always above the horizon | 17:45 | 18:26 - 03:51 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-07-11 | Alcor is always above the horizon | 17:17 | 18:24 - 03:55 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-07-18 | Alcor is always above the horizon | 16:50 | 18:21 - 04:00 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-07-25 | Alcor is always above the horizon | 16:22 | 18:16 - 04:05 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-08-01 | Alcor is always above the horizon | 15:55 | 18:10 - 04:11 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-08-08 | Alcor is always above the horizon | 15:27 | 18:03 - 04:16 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-08-15 | Alcor is always above the horizon | 14:56 | 17:55 - 04:22 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-08-22 | Alcor is always above the horizon | 14:28 | 17:46 - 04:28 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-08-29 | Alcor is always above the horizon | 14:01 | 17:37 - 04:34 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||
| 2027-09-05 | Alcor is always above the horizon | 13:33 | 17:26 - 04:40 | RA: 13h 25m 13s", Dec: 54° 59' 16s @ Ursa Major | |||||