CastorvsKalausi
Castor has a higher Declination (32 vs -43 °), while Castor has a higher Luminosity (49 vs 1 × Sun), while Kalausi has a higher Color Index (B-V) (1 vs 0).
Brightness
2
Apparent Magnitude
8
1
Absolute Magnitude
5
49
Luminosity
1
Physical Properties
51
Distance
134
9,720
Surface Temperature
5,248
0
Color Index (B-V)
1
Position
8
Right Ascension
10
32
Declination
-43
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Data sourced from HYG Database (Free for any purpose, including commercial).