CastorvsSheliak
Castor has a higher Absolute Magnitude (1 vs -4 mag), while Sheliak has a higher Luminosity (2,962 vs 49 × Sun), while Sheliak has a higher Distance (962 vs 51 light-years).
Brightness
2
Apparent Magnitude
4
1
Absolute Magnitude
-4
49
Luminosity
2,962
Physical Properties
51
Distance
962
9,720
Surface Temperature
10,088
0
Color Index (B-V)
0
Position
8
Right Ascension
19
32
Declination
33
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Data sourced from HYG Database (Free for any purpose, including commercial).