AlpheratzvsDiadem
Diadem has a higher Absolute Magnitude (3 vs 0 mag), while Diadem has a higher Color Index (B-V) (0 vs 0), while Diadem has a higher Right Ascension (13 vs 0 h).
Brightness
2
Apparent Magnitude
4
0
Absolute Magnitude
3
114
Luminosity
5
Physical Properties
97
Distance
58
10,625
Surface Temperature
6,600
0
Color Index (B-V)
0
Position
0
Right Ascension
13
29
Declination
18
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Data sourced from HYG Database (Free for any purpose, including commercial).