AlfirkvsPherkad
Pherkad has a higher Color Index (B-V) (0 vs 0), while Alfirk has a higher Luminosity (1,962 vs 1,225 × Sun), while Alfirk has a higher Surface Temperature (13,609 vs 9,455 K).
Brightness
3
Apparent Magnitude
3
-3
Absolute Magnitude
-3
1,962
Luminosity
1,225
Physical Properties
685
Distance
487
13,609
Surface Temperature
9,455
0
Color Index (B-V)
0
Position
21
Right Ascension
15
71
Declination
72
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Data sourced from HYG Database (Free for any purpose, including commercial).