CanopusvsCastor
Castor has a higher Declination (32 vs -53 °), while Castor has a higher Apparent Magnitude (2 vs -1 mag), while Castor has a higher Absolute Magnitude (1 vs -5 mag).
Brightness
-1
Apparent Magnitude
2
-5
Absolute Magnitude
1
13,855
Luminosity
49
Physical Properties
309
Distance
51
8,453
Surface Temperature
9,720
0
Color Index (B-V)
0
Position
6
Right Ascension
8
-53
Declination
32
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Data sourced from HYG Database (Free for any purpose, including commercial).