Alioth
HIP 62956; Epsilon UMa; 77 UMa
Physical Properties
Magnitude
1.77
Range
1.75 - 1.78
Period
5.1 days
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
A1IV
Star Color
Blue-white
(B-V -0.02)
Distance
82 ly
Position & Identifiers
RA
12h 54m 01.7s
Dec
+55° 57' 35.0"
Constellation
Ursa Major
(UMa)
HR
4905
HIP
62956
Bayer
Epsilon
Flamsteed
77 UMa
Variable ID
Eps UMa
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Stellar Notes
Alpha CV 1.76 - 1.79V, 5.0887d. Spectrum variable. Photometric var. due to UV absorption from overabundant metals.
0.95d and 4.15y. SB unresolved by speckle interferometry 1980.47. Binary nature questioned. Rotational period 5.09d.
"Dipper Stars;" Sirius group; UMa stream; UMa moving cluster.
Also classified A0pCrMn.
ALIOTH; Aliath.
4 solar radii.
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