Alioth Observation Details
Alioth Daily Motion
Alioth is circumpolar, never setting below the horizon and always visible in the night sky from your location. However, it will change its position significantly, moving 68 degrees over time. You can find the best times to observe Alioth, when it reaches its highest elevation, in the annual motion section.Alioth will be visible until September, 25, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.
Alioth Visibility Timetable on August 23
Alioth Rise and Set Timetable
| Time | Elevation | |
| Alioth is always above the horizon | ||
| Moon Rise, 0.8% illuminated | 05:57 | 8° |
| Alioth transit | 16:20 | 74° |
| Moon Set | 20:15 | 49° |
| Sunset | 20:16 | 49° |
| Civil sunset | 20:46 | 45° |
| Astrosession begin | 21:56 | 35° |
| Alioth is always above the horizon | ||
| Astrosession end | 05:13 | 7° |
| Civil sunrise | 06:23 | 10° |
| Sunrise | 06:53 | 11° |
Track Alioth Position Throughout the Night
← Sat, 23 August 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Alioth changing position in the night sky.
Where is Alioth right now?
Alioth is located in the constellation Ursa Major, at right ascension 12h 54m 01s" and declination 55° 57' 35s. Although it is currently above the horizon at an altitude of 71 degrees, Alioth is not visible because it is daytime.Finder Chart for Alioth
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| Object name | Alioth |
| Field of view | |
| Limiting magnitude | |
| Alioth coordinates | 12.900472, 55.959821 |
| Center coordinates | 12.900472, 55.959821 |
Alioth Passage Through Night
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Current position of Alioth
| Time | 15:15 |
| Latitude | 39.9625 |
| Longitude | -83.0061 |
| Alioth elevation | 71° |
| Alioth Azimuth | -28° |
Here you can see the current position of the Alioth on the map, as well as its positions for rise and set. This tool allows you to track the Alioth's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of Alioth
| Date | Sat, 23 August 2025 |
| Twighlight start | 21:52 |
| Twighlight end | 05:07 |
| Twighlight duration | 7h 15m |
| Rise | Alioth is always up |
| Set | Alioth is always up |
| Elevation at transit | 74° |
| Transit time | 16:16 |
| Equatorial coordinates | RA: 12h 54m 01s", Dec: 55° 57' 35s |
| Magnitude | 2 |
| Constellation | Ursa Major |
The graph illustrates the annual visibility pattern of a Alioth, providing a comprehensive overview of its daily appearances and transit times throughout the year.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the Alioth is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the Alioth is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
Astrometric & Physical Parameters of Alioth
Coordinates & Visibility
| Right Ascension | 12.900472° |
| Declination | 55.959821° |
| Magnitude | 1.76 |
| Constellation | Ursa Major |
| Elevation | 70.8° |
| Azimuth | -28.4° |