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 Columbus , Alioth is visible in both the dusk and dawn skies. In the evening, it will become visible at around 17:59 (EST), 14° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 18:17 when it dips 13° above your north-western horizon. At 00:25, it will return to an altitude of 13° above your north-eastern horizon, and reach an altitude of 58° before fading from view as dawn breaks at around 06:32.
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|
Name
Alioth
|
Object type
Star
|
Other names
Position
| Right ascension: | 12h54m01s [3] |
| Declination: | +55°57'35" [3] |
| Constellation: | Ursa Major |
| Magnitude: Variable | 1.76 (V) [3] 1.81 (BT) [2] 1.76 (VT) [2] |
| Distance: | 25.3 parsec 82.5 lightyrs [5] |
| B-V Color (mag): | 0.04 |
| Proper motion (speed): | 112.2 mas/yr[5] |
| Proper motion (pos ang): | 94.2° |
Derived quantities
| Absolute mag (V): | -0.26 |
Visibility from Columbus
All times shown in Columbus local time.