ArcturusvsDiadem
Diadem has a higher Absolute Magnitude (3 vs 0 mag), while Diadem has a higher Apparent Magnitude (4 vs 0 mag), while Arcturus has a higher Luminosity (116 vs 5 × Sun).
Brightness
0
Apparent Magnitude
4
0
Absolute Magnitude
3
116
Luminosity
5
Physical Properties
37
Distance
58
4,234
Surface Temperature
6,600
1
Color Index (B-V)
0
Position
14
Right Ascension
13
19
Declination
18
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Data sourced from HYG Database (Free for any purpose, including commercial).