AchernarvsCapella
Capella has a higher Declination (46 vs -57 °), while Capella has a higher Color Index (B-V) (1 vs 0), while Achernar has a higher Luminosity (1,052 vs 139 × Sun).
Brightness
0
Apparent Magnitude
0
-3
Absolute Magnitude
-1
1,052
Luminosity
139
Physical Properties
139
Distance
43
12,650
Surface Temperature
5,296
0
Color Index (B-V)
1
Position
2
Right Ascension
5
-57
Declination
46
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Data sourced from HYG Database (Free for any purpose, including commercial).