Castor BvsSadr
Castor B has a higher Absolute Magnitude (2 vs -7 mag), while Sadr has a higher Luminosity (35,253 vs 16 × Sun), while Sadr has a higher Distance (1,832 vs 52 light-years).
Brightness
3
Apparent Magnitude
2
2
Absolute Magnitude
-7
16
Luminosity
35,253
Physical Properties
52
Distance
1,832
N/A
Surface Temperature
5,696
N/A
Color Index (B-V)
1
Position
8
Right Ascension
20
32
Declination
40
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Data sourced from HYG Database (Free for any purpose, including commercial).