Castor BvsCursa
Castor B has a higher Declination (32 vs -5 °), while Cursa has a higher Luminosity (51 vs 16 × Sun), while Castor B has a higher Absolute Magnitude (2 vs 1 mag).
Brightness
3
Apparent Magnitude
3
2
Absolute Magnitude
1
16
Luminosity
51
Physical Properties
52
Distance
89
N/A
Surface Temperature
8,478
N/A
Color Index (B-V)
0
Position
8
Right Ascension
5
32
Declination
-5
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Data sourced from HYG Database (Free for any purpose, including commercial).