Alnilam Observation Details
Alnilam Daily Motion
Alnilam will rise at 23:37, during twilight, and will ascend to 44° by the time twilight ends at 03:46.Alnilam will be visible until April, 13, 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.
Alnilam Visibility Timetable on September 08
Alnilam Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 99.8% illuminated | 17:33 | -54° |
| Astrosession begin | 18:56 | -49° |
| Alnilam rise | 23:37 | |
| Astrosession end | 03:14 | 40° |
| Civil sunrise | 04:18 | 48° |
| Sunrise | 04:45 | 50° |
| Alnilam transit | 05:32 | 51° |
| Moon Set | 05:46 | 51° |
Track Alnilam Position Throughout the Night
← Mon, 8 September 2025 →
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Shift the map to change the time and observe Alnilam changing position in the night sky.
Where is Alnilam right now?
Alnilam is located in the constellation Orion, at right ascension 05h 36m 12s" and declination -1° 12' 06s. Although it is currently above the horizon at an altitude of 10 degrees, Alnilam is not visible because it is daytime.Alnilam - Blue Supergiant Star
Alnilam is the central star in Orion's Belt and the twenty-seventh-brightest star in the night sky. It is a blue supergiant star located about 2,000 light-years away from Earth.
Alnilam has an apparent magnitude of 1.70 and is one of the most prominent stars in the winter sky in the Northern Hemisphere.
Finder Chart for Alnilam
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| Object name | Alnilam |
| Field of view | |
| Limiting magnitude | |
| Alnilam coordinates | 5.603559, -1.20192 |
| Center coordinates | 5.603559, -1.20192 |
Alnilam Passage Through Night
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Current position of Alnilam
| Time | 10:41 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Alnilam elevation | 10° |
| Alnilam Azimuth | 99° |
Here you can see the current position of the Alnilam on the map, as well as its positions for rise and set. This tool allows you to track the Alnilam's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of Alnilam
| Date | Mon, 8 September 2025 |
| Twighlight start | 18:52 |
| Twighlight end | 03:08 |
| Twighlight duration | 8h 16m |
| Rise | 23:37 |
| Set | 11:27 |
| Elevation at transit | 51° |
| Transit time | 05:32 |
| Equatorial coordinates | RA: 05h 36m 12s", Dec: -1° 12' 06s |
| Magnitude | 2 |
| Constellation | Orion |
The graph illustrates the annual visibility pattern of a Alnilam, 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 Alnilam 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 Alnilam 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 Alnilam
Coordinates & Visibility
| Right Ascension | 5.603559° |
| Declination | -1.20192° |
| Magnitude | 1.69 |
| Constellation | Orion |
| Elevation | 10° |
| Azimuth | 99.3° |