AlfirkvsAltair
Altair has a higher Color Index (B-V) (0 vs 0), while Altair has a higher Absolute Magnitude (2 vs -3 mag), while Alfirk has a higher Luminosity (1,962 vs 11 × Sun).
Brightness
3
Apparent Magnitude
1
-3
Absolute Magnitude
2
1,962
Luminosity
11
Physical Properties
685
Distance
17
13,609
Surface Temperature
8,004
0
Color Index (B-V)
0
Position
21
Right Ascension
20
71
Declination
9
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Data sourced from HYG Database (Free for any purpose, including commercial).