GrumiumvsThuban
Grumium has a higher Absolute Magnitude (1 vs -1 mag), while Grumium has a higher Color Index (B-V) (1 vs 0), while Thuban has a higher Luminosity (256 vs 33 × Sun).
Brightness
4
Apparent Magnitude
4
1
Absolute Magnitude
-1
33
Luminosity
256
Physical Properties
113
Distance
303
4,354
Surface Temperature
10,781
1
Color Index (B-V)
0
Position
18
Right Ascension
14
57
Declination
64
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Data sourced from HYG Database (Free for any purpose, including commercial).