AchernarvsFafnir
Fafnir has a higher Declination (66 vs -57 °), while Fafnir has a higher Color Index (B-V) (1 vs 0), while Fafnir has a higher Absolute Magnitude (0 vs -3 mag).
Brightness
0
Apparent Magnitude
5
-3
Absolute Magnitude
0
1,052
Luminosity
96
Physical Properties
139
Distance
315
12,650
Surface Temperature
4,350
0
Color Index (B-V)
1
Position
2
Right Ascension
18
-57
Declination
66
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Data sourced from HYG Database (Free for any purpose, including commercial).