CastorvsGacrux
Castor has a higher Absolute Magnitude (1 vs -1 mag), while Castor has a higher Declination (32 vs -57 °), while Gacrux has a higher Color Index (B-V) (2 vs 0).
Brightness
2
Apparent Magnitude
2
1
Absolute Magnitude
-1
49
Luminosity
148
Physical Properties
51
Distance
89
9,720
Surface Temperature
3,649
0
Color Index (B-V)
2
Position
8
Right Ascension
13
32
Declination
-57
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Data sourced from HYG Database (Free for any purpose, including commercial).