Achernar Position and Visibility Tonight
Where is Achernar right now?
Achernar is located in the constellation Eridanus. At the current time, it is below the horizon and not visible from your location.
Achernar Visibility on April 07
Achernar is Not visible tonight
Achernar Rise and Set Timetable
| Time | Elevation | |
| Achernar is always below the horizon | - | |
| Achernar transit | 11:44 | -5° |
| Astrosession begin | 19:05 | -41° |
Moon Rise, 78.7% illuminated  | 22:36 | -67° |
| Astrosession end | 03:13 | -50° |
| Moon Set | 07:44 | -17° |
Track Achernar Position Throughout the Night
← Tue, 7 April 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Achernar changing position in the night sky.
Achernar - Blue Giant Star
Achernar is the brightest star in the constellation Eridanus and the ninth-brightest star in the night sky. It is a blue giant star located about 139 light-years away from Earth.
With an apparent magnitude of 0.46, Achernar is notable for its rapid rotation, which causes it to have an oblate shape.
Finder Chart for Achernar
Double-click to unlock the map.
| Object name | Achernar |
| Field of view | |
| Limiting magnitude | |
| Achernar coordinates | 1.628556, -57.236757 |
| Center coordinates | 1.628556, -57.236757 |
Achernar Passage Through Night
Double-click to unlock the map.
Current position of Achernar
| Time | 19:31 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Achernar elevation | -45° |
| Achernar Azimuth | 137° |
Here you can see the current position of the Achernar on the map, as well as its positions for rise and set. This tool allows you to track the Achernar's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of Achernar
| Date | Wed, 8 April 2026 |
| Twighlight start | 19:05 |
| Twighlight end | 03:11 |
| Twighlight duration | 8h 5m |
| Rise | Achernar is always down |
| Set | Achernar is always down |
| Elevation at transit | -5° |
| Transit time | 11:41 |
| Equatorial coordinates | RA: 01h 37m 42s", Dec: -57° 14' 12s |
| Magnitude | 0 |
| Constellation | Eridanus |
The graph illustrates the annual visibility pattern of a Achernar, 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 Achernar 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.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
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 Achernar 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.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
Astrometric & Physical Parameters of Achernar
Coordinates & Visibility
| Right Ascension | 1.628556° |
| Declination | -57.236757° |
| Magnitude | 0.45 |
| Constellation | Eridanus |
| Elevation | -44.9° |
| Azimuth | 137.1° |