AlcyonevsBrachium
Alcyone has a higher Declination (24 vs -25 °), while Brachium has a higher Color Index (B-V) (2 vs 0), while Brachium has a higher Right Ascension (15 vs 4 h).
Brightness
3
Apparent Magnitude
3
-3
Absolute Magnitude
-1
964
Luminosity
341
Physical Properties
403
Distance
288
11,343
Surface Temperature
3,549
0
Color Index (B-V)
2
Position
4
Right Ascension
15
24
Declination
-25
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Data sourced from HYG Database (Free for any purpose, including commercial).