Algol (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 , Algol is not observable – it will reach its highest point in the sky during daytime and is no higher than 9° above the horizon at dawn.
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|
Name
Algol
|
Object type
Star
|
Position
| Right ascension: | 03h08m10s [3] |
| Declination: | +40°57'20" [3] |
| Constellation: | Perseus |
| Magnitude: Variable | 2.11 (V) [3] 2.10 (BT) [2] 2.10 (VT) [2] |
| Distance: | 27.6 parsec 89.9 lightyrs [5] |
| B-V Color (mag): | -0.01 |
| Proper motion (speed): | 3.4 mas/yr[5] |
| Proper motion (pos ang): | 119.0° |
Derived quantities
| Absolute mag (V): | -0.09 |
Visibility from Cambridge
All times shown in Cambridge local time.