AlpheccavsTarf
Alphecca has a higher Absolute Magnitude (0 vs -1 mag), while Tarf has a higher Color Index (B-V) (1 vs 0), while Tarf has a higher Luminosity (292 vs 60 × Sun).
Brightness
2
Apparent Magnitude
4
0
Absolute Magnitude
-1
60
Luminosity
292
Physical Properties
75
Distance
303
9,743
Surface Temperature
3,822
0
Color Index (B-V)
1
Position
16
Right Ascension
8
27
Declination
9
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Data sourced from HYG Database (Free for any purpose, including commercial).