AchernarvsGienah
Gienah has a higher Right Ascension (12 vs 2 h), while Achernar has a higher Luminosity (1,052 vs 179 × Sun), while Gienah has a higher Apparent Magnitude (3 vs 0 mag).
Brightness
0
Apparent Magnitude
3
-3
Absolute Magnitude
-1
1,052
Luminosity
179
Physical Properties
139
Distance
154
12,650
Surface Temperature
11,692
0
Color Index (B-V)
0
Position
2
Right Ascension
12
-57
Declination
-18
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Data sourced from HYG Database (Free for any purpose, including commercial).