AlcyonevsAtria
Alcyone has a higher Declination (24 vs -69 °), while Atria has a higher Color Index (B-V) (1 vs 0), while Atria has a higher Right Ascension (17 vs 4 h).
Brightness
3
Apparent Magnitude
2
-3
Absolute Magnitude
-3
964
Luminosity
2,152
Physical Properties
403
Distance
391
11,343
Surface Temperature
3,875
0
Color Index (B-V)
1
Position
4
Right Ascension
17
24
Declination
-69
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Data sourced from HYG Database (Free for any purpose, including commercial).