AlshainvsCastor B
Castor B has a higher Declination (32 vs 6 °), while Castor B has a higher Luminosity (16 vs 5 × Sun), while Alshain has a higher Right Ascension (20 vs 8 h).
Brightness
4
Apparent Magnitude
3
3
Absolute Magnitude
2
5
Luminosity
16
Physical Properties
45
Distance
52
5,120
Surface Temperature
N/A
1
Color Index (B-V)
N/A
Position
20
Right Ascension
8
6
Declination
32
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Data sourced from HYG Database (Free for any purpose, including commercial).