Alioth (Star)

Color-magnitude diagram
Image of Alioth
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
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From Cambridge , Alioth is visible all night because it is circumpolar. It will be highest in the sky at dusk, becoming accessible at around 21:15 (EDT), 55° above your north-western horizon. It will be lost to dawn twilight at around 04:22, 10° above your northern horizon.

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Name Alioth
Object type Star
Other names
Alioth
ε-UMa
Epsilon Ursae Majoris
77-UMa
77 Ursae Majoris
HR 4905[1]
HD 112185
HIP 62956[5]
TYC 3845-1190-1[4]
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 Cambridge

All times shown in Cambridge local time.

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Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

Color scheme