AliothvsGacrux
Alioth has a higher Declination (56 vs -57 °), while Gacrux has a higher Color Index (B-V) (2 vs 0), while Alioth has a higher Surface Temperature (10,408 vs 3,649 K).
Brightness
2
Apparent Magnitude
2
0
Absolute Magnitude
-1
110
Luminosity
148
Physical Properties
83
Distance
89
10,408
Surface Temperature
3,649
0
Color Index (B-V)
2
Position
13
Right Ascension
13
56
Declination
-57
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Data sourced from HYG Database (Free for any purpose, including commercial).