Castor BvsMeleph
Castor B has a higher Absolute Magnitude (2 vs 0 mag), while Meleph has a higher Distance (587 vs 52 light-years), while Meleph has a higher Luminosity (86 vs 16 × Sun).
Brightness
3
Apparent Magnitude
6
2
Absolute Magnitude
0
16
Luminosity
86
Physical Properties
52
Distance
587
N/A
Surface Temperature
8,403
N/A
Color Index (B-V)
0
Position
8
Right Ascension
9
32
Declination
20
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Data sourced from HYG Database (Free for any purpose, including commercial).