CastorvsNosaxa
Castor has a higher Declination (32 vs -49 °), while Nosaxa has a higher Color Index (B-V) (1 vs 0), while Castor has a higher Luminosity (49 vs 4 × Sun).
Brightness
2
Apparent Magnitude
8
1
Absolute Magnitude
3
49
Luminosity
4
Physical Properties
51
Distance
279
9,720
Surface Temperature
5,446
0
Color Index (B-V)
1
Position
8
Right Ascension
7
32
Declination
-49
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Data sourced from HYG Database (Free for any purpose, including commercial).