Castor BvsCastula
Castor B has a higher Right Ascension (8 vs 1 h), while Castula has a higher Distance (200 vs 52 light-years), while Castula has a higher Luminosity (46 vs 16 × Sun).
Brightness
3
Apparent Magnitude
5
2
Absolute Magnitude
1
16
Luminosity
46
Physical Properties
52
Distance
200
N/A
Surface Temperature
4,848
N/A
Color Index (B-V)
1
Position
8
Right Ascension
1
32
Declination
59
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Data sourced from HYG Database (Free for any purpose, including commercial).