Achernar Position and Visibility Tonight
Where is Achernar right now?
Achernar is located in the constellation Eridanus. It is currently below the horizon and is not visible from your location.
Achernar tonight
Achernar visibility on 2026-10-23
Achernar is Not visible tonight
Achernar rise and set timetable
| Time | Elevation | |
| Achernar is always below the horizon | - | |
Moonrise, 80.5% illuminated  | 14:26 | -48° |
| Astronomical observing session begins | 17:48 | -22° |
| Achernar transit | 22:38 | -5° |
| Moonset | 02:40 | -17° |
| Astronomical observing session ends | 03:56 | -26° |
Track Achernar position throughout the night
← 23 October 2026 →
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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
Achernar Passage Through Night
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Current position of Achernar
| Time | 16:53 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | -29° |
| Azimuth | 142° |
Here you can see the current position of Achernar on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.
When Is Achernar Visible Throughout the Year?
| Date | Sat, 24 October 2026 |
| Astronomical observing session begins | 17:46 |
| Astronomical observing session ends | 03:54 |
| Astronomical observing duration | 10h 8m |
| Rise | Achernar is always down |
| Set | Achernar is always down |
| Elevation at transit | -5° |
| Transit time | 22:34 |
| Equatorial coordinates | RA: 01h 37m 42s", Dec: -57° 14' 12s |
| Magnitude | 0 |
| Constellation | Eridanus |
The graph illustrates the annual visibility pattern of Achernar, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also see when Achernar is visible throughout the year in a table with exact rise, transit, and set times for each date.
You can also see when Achernar is visible throughout the year in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of Achernar
Coordinates and Visibility
| Right Ascension | 01h 37m 43s |
| Declination | -57° 14′ 12″ |
| Magnitude | 0.45 |
| Constellation | Eridanus |
| Elevation | -29° |
| Azimuth | 141.9° |
| Spectral type | B3Vp |