AlpheccavsOgma
Alphecca has a higher Luminosity (60 vs 3 × Sun), while Ogma has a higher Color Index (B-V) (1 vs 0), while Ogma has a higher Absolute Magnitude (4 vs 0 mag).
Brightness
2
Apparent Magnitude
8
0
Absolute Magnitude
4
60
Luminosity
3
Physical Properties
75
Distance
259
9,743
Surface Temperature
5,925
0
Color Index (B-V)
1
Position
16
Right Ascension
17
27
Declination
38
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Data sourced from HYG Database (Free for any purpose, including commercial).