ArnebvsCastor
Castor has a higher Declination (32 vs -18 °), while Castor has a higher Absolute Magnitude (1 vs -7 mag), while Arneb has a higher Luminosity (37,428 vs 49 × Sun).
Brightness
3
Apparent Magnitude
2
-7
Absolute Magnitude
1
37,428
Luminosity
49
Physical Properties
2,219
Distance
51
8,079
Surface Temperature
9,720
0
Color Index (B-V)
0
Position
6
Right Ascension
8
-18
Declination
32
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Data sourced from HYG Database (Free for any purpose, including commercial).