AchernarvsTarf
Tarf has a higher Declination (9 vs -57 °), while Tarf has a higher Color Index (B-V) (1 vs 0), while Tarf has a higher Apparent Magnitude (4 vs 0 mag).
Brightness
0
Apparent Magnitude
4
-3
Absolute Magnitude
-1
1,052
Luminosity
292
Physical Properties
139
Distance
303
12,650
Surface Temperature
3,822
0
Color Index (B-V)
1
Position
2
Right Ascension
8
-57
Declination
9
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Data sourced from HYG Database (Free for any purpose, including commercial).