AliothvsArkab Posterior
Alioth has a higher Declination (56 vs -45 °), while Arkab Posterior has a higher Absolute Magnitude (1 vs 0 mag), while Arkab Posterior has a higher Color Index (B-V) (0 vs 0).
Brightness
2
Apparent Magnitude
4
0
Absolute Magnitude
1
110
Luminosity
29
Physical Properties
83
Distance
134
10,408
Surface Temperature
7,158
0
Color Index (B-V)
0
Position
13
Right Ascension
19
56
Declination
-45
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Data sourced from HYG Database (Free for any purpose, including commercial).