MergavsOgma
Merga has a higher Luminosity (10 vs 3 × Sun), while Ogma has a higher Distance (259 vs 160 light-years), while Ogma has a higher Absolute Magnitude (4 vs 2 mag).
Brightness
6
Apparent Magnitude
8
2
Absolute Magnitude
4
10
Luminosity
3
Physical Properties
160
Distance
259
6,472
Surface Temperature
5,925
0
Color Index (B-V)
1
Position
15
Right Ascension
17
46
Declination
38
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Data sourced from HYG Database (Free for any purpose, including commercial).