AlhenavsMesarthim
Mesarthim has a higher Absolute Magnitude (0 vs -1 mag), while Alhena has a higher Color Index (B-V) (0 vs 0), while Alhena has a higher Right Ascension (7 vs 2 h).
Brightness
2
Apparent Magnitude
4
-1
Absolute Magnitude
0
165
Luminosity
62
Physical Properties
109
Distance
164
10,113
Surface Temperature
10,752
0
Color Index (B-V)
0
Position
7
Right Ascension
2
16
Declination
19
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Data sourced from HYG Database (Free for any purpose, including commercial).