AchernarvsSirius
Sirius has a higher Absolute Magnitude (1 vs -3 mag), while Achernar has a higher Apparent Magnitude (0 vs -1 mag), while Sirius has a higher Color Index (B-V) (0 vs 0).
Brightness
0
Apparent Magnitude
-1
-3
Absolute Magnitude
1
1,052
Luminosity
23
Physical Properties
139
Distance
9
12,650
Surface Temperature
10,014
0
Color Index (B-V)
0
Position
2
Right Ascension
7
-57
Declination
-17
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Data sourced from HYG Database (Free for any purpose, including commercial).