Castor BvsLa Superba
Castor B has a higher Absolute Magnitude (2 vs -2 mag), while La Superba has a higher Luminosity (608 vs 16 × Sun), while La Superba has a higher Distance (1,045 vs 52 light-years).
Brightness
3
Apparent Magnitude
5
2
Absolute Magnitude
-2
16
Luminosity
608
Physical Properties
52
Distance
1,045
N/A
Surface Temperature
2,396
N/A
Color Index (B-V)
3
Position
8
Right Ascension
13
32
Declination
45
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Data sourced from HYG Database (Free for any purpose, including commercial).