AltairvsMeleph
Altair has a higher Absolute Magnitude (2 vs 0 mag), while Meleph has a higher Distance (587 vs 17 light-years), while Meleph has a higher Apparent Magnitude (6 vs 1 mag).
Brightness
1
Apparent Magnitude
6
2
Absolute Magnitude
0
11
Luminosity
86
Physical Properties
17
Distance
587
8,004
Surface Temperature
8,403
0
Color Index (B-V)
0
Position
20
Right Ascension
9
9
Declination
20
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Data sourced from HYG Database (Free for any purpose, including commercial).