AcamarvsDiadem
Diadem has a higher Declination (18 vs -40 °), while Diadem has a higher Absolute Magnitude (3 vs -1 mag), while Acamar has a higher Luminosity (150 vs 5 × Sun).
Brightness
3
Apparent Magnitude
4
-1
Absolute Magnitude
3
150
Luminosity
5
Physical Properties
161
Distance
58
8,766
Surface Temperature
6,600
0
Color Index (B-V)
0
Position
3
Right Ascension
13
-40
Declination
18
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Data sourced from HYG Database (Free for any purpose, including commercial).