AlpheratzvsCapella
Capella has a higher Color Index (B-V) (1 vs 0), while Capella has a higher Right Ascension (5 vs 0 h), while Alpheratz has a higher Apparent Magnitude (2 vs 0 mag).
Brightness
2
Apparent Magnitude
0
0
Absolute Magnitude
-1
114
Luminosity
139
Physical Properties
97
Distance
43
10,625
Surface Temperature
5,296
0
Color Index (B-V)
1
Position
0
Right Ascension
5
29
Declination
46
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Data sourced from HYG Database (Free for any purpose, including commercial).