AchernarvsAlderamin
Alderamin has a higher Declination (63 vs -57 °), while Alderamin has a higher Color Index (B-V) (0 vs 0), while Alderamin has a higher Absolute Magnitude (2 vs -3 mag).
Brightness
0
Apparent Magnitude
2
-3
Absolute Magnitude
2
1,052
Luminosity
21
Physical Properties
139
Distance
49
12,650
Surface Temperature
7,747
0
Color Index (B-V)
0
Position
2
Right Ascension
21
-57
Declination
63
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Data sourced from HYG Database (Free for any purpose, including commercial).