AltairvsArcalís
Arcalís has a higher Distance (359 vs 17 light-years), while Arcalís has a higher Apparent Magnitude (8 vs 1 mag), while Arcalís has a higher Color Index (B-V) (1 vs 0).
Brightness
1
Apparent Magnitude
8
2
Absolute Magnitude
3
11
Luminosity
8
Physical Properties
17
Distance
359
8,004
Surface Temperature
4,651
0
Color Index (B-V)
1
Position
20
Right Ascension
15
9
Declination
18
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Data sourced from HYG Database (Free for any purpose, including commercial).