Altair Observation Details
Altair Daily Motion
Altair will rise at 11:55, reaching 61° when twilight begins at 17:49. It will reach transit at 62° by 18:22 and will set before twilight ends at 00:48.Altair will be visible until December, 21, 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.
Altair Visibility Timetable on September 30
Altair Rise and Set Timetable
| Time | Elevation | |
| Altair rise | 11:55 | |
| Moon Rise, 49.2% illuminated | 12:36 | 8° |
| Sunset | 16:52 | 55° |
| Civil sunset | 17:19 | 58° |
| Astrosession begin | 18:20 | 62° |
| Altair transit | 18:22 | 62° |
| Moon Set | 21:43 | 36° |
| Altair set | 00:48 | |
| Astrosession end | 03:36 | -30° |
Track Altair Position Throughout the Night
← Tue, 30 September 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Altair changing position in the night sky.
Where is Altair right now?
Altair is located in the constellation Aquila, at right ascension 19h 50m 46s" and declination 08° 52' 05s. Although it is currently above the horizon at an altitude of 8 degrees, Altair is not visible because it is daytime.Altair - Main Sequence Star
Altair is the brightest star in the constellation Aquila and the twelfth-brightest star in the night sky. It is a main sequence star located about 16.7 light-years away from Earth.
Altair has an apparent magnitude of 0.76 and is known for its rapid rotation, which causes it to have an oblate shape. It is one of the closest stars visible to the naked eye.
Finder Chart for Altair
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| Object name | Altair |
| Field of view | |
| Limiting magnitude | |
| Altair coordinates | 19.846388, 8.868322000000001 |
| Center coordinates | 19.846388, 8.868322000000001 |
Altair Passage Through Night
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Current position of Altair
| Time | 12:36 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Altair elevation | 8° |
| Altair Azimuth | -85° |
Here you can see the current position of the Altair on the map, as well as its positions for rise and set. This tool allows you to track the Altair's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of Altair
| Date | Tue, 30 September 2025 |
| Twighlight start | 18:15 |
| Twighlight end | 03:29 |
| Twighlight duration | 9h 14m |
| Rise | 11:51 |
| Set | 00:44 |
| Elevation at transit | 62° |
| Transit time | 18:18 |
| Equatorial coordinates | RA: 19h 50m 46s", Dec: 08° 52' 05s |
| Magnitude | 1 |
| Constellation | Aquila |
The graph illustrates the annual visibility pattern of a Altair, 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 Altair 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 Altair 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 Altair
Coordinates & Visibility
| Right Ascension | 19.846388° |
| Declination | 8.868322000000001° |
| Magnitude | 0.76 |
| Constellation | Aquila |
| Elevation | 8° |
| Azimuth | -84.9° |