Alioth (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 , Alioth is visible all night because it is circumpolar. It will be highest in the sky at 01:09, 76° above your northern horizon. At dusk, it will become visible around 19:55 (EDT), 40° above your north-eastern horizon. It will be lost to dawn twilight around 05:41, 45° above your north-western horizon.
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|
Name
Alioth
|
Object type
Star
|
Other names
Position
| Constellation: | Ursa Major |
| Magnitude: Variable | 1.76 (V) [3] 1.81 (BT) [2] 1.76 (VT) [2] |
| B-V Color (mag): | 0.04 |
| Right ascension: | 12h54m01s [3] |
| Declination: | +55°57'35" [3] |
| Distance: | 25.3 parsec 82.5 lightyrs [5] |
| Proper motion (speed): | 112.2 mas/yr [5] |
| Proper motion (pos ang): | 94.2° |
Derived quantities
| Absolute mag (V): | -0.26 |
Visibility from Cambridge
All times shown in Cambridge local time.