EltaninvsFafnir
Fafnir has a higher Absolute Magnitude (0 vs -1 mag), while Eltanin has a higher Luminosity (248 vs 96 × Sun), while Fafnir has a higher Apparent Magnitude (5 vs 2 mag).
Brightness
2
Apparent Magnitude
5
-1
Absolute Magnitude
0
248
Luminosity
96
Physical Properties
154
Distance
315
3,762
Surface Temperature
4,350
2
Color Index (B-V)
1
Position
18
Right Ascension
18
51
Declination
66
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Data sourced from HYG Database (Free for any purpose, including commercial).