CastorvsTabit
Castor has a higher Luminosity (49 vs 3 × Sun), while Tabit has a higher Color Index (B-V) (0 vs 0), while Tabit has a higher Absolute Magnitude (4 vs 1 mag).
Brightness
2
Apparent Magnitude
3
1
Absolute Magnitude
4
49
Luminosity
3
Physical Properties
51
Distance
26
9,720
Surface Temperature
6,462
0
Color Index (B-V)
0
Position
8
Right Ascension
5
32
Declination
7
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Data sourced from HYG Database (Free for any purpose, including commercial).