AlkesvsDiadem
Diadem has a higher Declination (18 vs -18 °), while Alkes has a higher Luminosity (48 vs 5 × Sun), while Diadem has a higher Absolute Magnitude (3 vs 1 mag).
Brightness
4
Apparent Magnitude
4
1
Absolute Magnitude
3
48
Luminosity
5
Physical Properties
159
Distance
58
4,561
Surface Temperature
6,600
1
Color Index (B-V)
0
Position
11
Right Ascension
13
-18
Declination
18
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Data sourced from HYG Database (Free for any purpose, including commercial).