NunkivsThuban
Thuban has a higher Declination (64 vs -26 °), while Thuban has a higher Color Index (B-V) (0 vs 0), while Nunki has a higher Luminosity (643 vs 256 × Sun).
Brightness
2
Apparent Magnitude
4
-2
Absolute Magnitude
-1
643
Luminosity
256
Physical Properties
228
Distance
303
12,178
Surface Temperature
10,781
0
Color Index (B-V)
0
Position
19
Right Ascension
14
-26
Declination
64
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Data sourced from HYG Database (Free for any purpose, including commercial).