Arkab PosteriorvsMerga
Merga has a higher Declination (46 vs -45 °), while Arkab Posterior has a higher Luminosity (29 vs 10 × Sun), while Merga has a higher Absolute Magnitude (2 vs 1 mag).
Brightness
4
Apparent Magnitude
6
1
Absolute Magnitude
2
29
Luminosity
10
Physical Properties
134
Distance
160
7,158
Surface Temperature
6,472
0
Color Index (B-V)
0
Position
19
Right Ascension
15
-45
Declination
46
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Data sourced from HYG Database (Free for any purpose, including commercial).