AltairvsArneb
Altair has a higher Declination (9 vs -18 °), while Altair has a higher Absolute Magnitude (2 vs -7 mag), while Arneb has a higher Luminosity (37,428 vs 11 × Sun).
Brightness
1
Apparent Magnitude
3
2
Absolute Magnitude
-7
11
Luminosity
37,428
Physical Properties
17
Distance
2,219
8,004
Surface Temperature
8,079
0
Color Index (B-V)
0
Position
20
Right Ascension
6
9
Declination
-18
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Data sourced from HYG Database (Free for any purpose, including commercial).