Castor BvsSegin
Castor B has a higher Absolute Magnitude (2 vs -2 mag), while Segin has a higher Luminosity (634 vs 16 × Sun), while Segin has a higher Distance (412 vs 52 light-years).
Brightness
3
Apparent Magnitude
3
2
Absolute Magnitude
-2
16
Luminosity
634
Physical Properties
52
Distance
412
N/A
Surface Temperature
12,489
N/A
Color Index (B-V)
0
Position
8
Right Ascension
2
32
Declination
64
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Data sourced from HYG Database (Free for any purpose, including commercial).