Achernar (Star)
Color-magnitude diagram
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Cambridge , Achernar is not observable because it lies so far south that it never rises above the horizon.
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|
Name
Achernar
|
Object type
Star
|
Position
| Right ascension: | 01h37m42s [3] |
| Declination: | −57°14'11" [3] |
| Constellation: | Eridanus |
| Magnitude: Variable | 0.54 (V) [3] 0.46 (BT) [2] 0.52 (VT) [2] |
| Distance: | 42.8 parsec 139.4 lightyrs [5] |
| B-V Color (mag): | -0.06 |
| Proper motion (speed): | 95.0 mas/yr[5] |
| Proper motion (pos ang): | 113.7° |
Derived quantities
| Absolute mag (V): | -2.61 |
Visibility from Cambridge
All times shown in Cambridge local time.