Castor BvsMatar
Castor B has a higher Absolute Magnitude (2 vs -1 mag), while Matar has a higher Luminosity (253 vs 16 × Sun), while Matar has a higher Distance (214 vs 52 light-years).
Brightness
3
Apparent Magnitude
3
2
Absolute Magnitude
-1
16
Luminosity
253
Physical Properties
52
Distance
214
N/A
Surface Temperature
5,129
N/A
Color Index (B-V)
1
Position
8
Right Ascension
23
32
Declination
30
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Data sourced from HYG Database (Free for any purpose, including commercial).