AlcyonevsAlphard
Alcyone has a higher Declination (24 vs -9 °), while Alphard has a higher Color Index (B-V) (1 vs 0), while Alcyone has a higher Surface Temperature (11,343 vs 3,886 K).
Brightness
3
Apparent Magnitude
2
-3
Absolute Magnitude
-2
964
Luminosity
426
Physical Properties
403
Distance
180
11,343
Surface Temperature
3,886
0
Color Index (B-V)
1
Position
4
Right Ascension
9
24
Declination
-9
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Data sourced from HYG Database (Free for any purpose, including commercial).