AchernarvsCastor B
Castor B has a higher Absolute Magnitude (2 vs -3 mag), while Castor B has a higher Declination (32 vs -57 °), while Achernar has a higher Luminosity (1,052 vs 16 × Sun).
Brightness
0
Apparent Magnitude
3
-3
Absolute Magnitude
2
1,052
Luminosity
16
Physical Properties
139
Distance
52
12,650
Surface Temperature
N/A
0
Color Index (B-V)
N/A
Position
2
Right Ascension
8
-57
Declination
32
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Data sourced from HYG Database (Free for any purpose, including commercial).