AltaisvsCastor B
Altais has a higher Luminosity (46 vs 16 × Sun), while Castor B has a higher Absolute Magnitude (2 vs 1 mag), while Altais has a higher Right Ascension (19 vs 8 h).
Brightness
3
Apparent Magnitude
3
1
Absolute Magnitude
2
46
Luminosity
16
Physical Properties
97
Distance
52
4,767
Surface Temperature
N/A
1
Color Index (B-V)
N/A
Position
19
Right Ascension
8
68
Declination
32
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Data sourced from HYG Database (Free for any purpose, including commercial).