AcruxvsCastor
Castor has a higher Declination (32 vs -63 °), while Castor has a higher Absolute Magnitude (1 vs -4 mag), while Castor has a higher Color Index (B-V) (0 vs 0).
Brightness
1
Apparent Magnitude
2
-4
Absolute Magnitude
1
4,176
Luminosity
49
Physical Properties
322
Distance
51
14,719
Surface Temperature
9,720
0
Color Index (B-V)
0
Position
12
Right Ascension
8
-63
Declination
32
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Data sourced from HYG Database (Free for any purpose, including commercial).