RukbatvsTianyi
Tianyi has a higher Declination (67 vs -41 °), while Rukbat has a higher Absolute Magnitude (0 vs -1 mag), while Tianyi has a higher Color Index (B-V) (2 vs 0).
Brightness
4
Apparent Magnitude
5
0
Absolute Magnitude
-1
71
Luminosity
303
Physical Properties
182
Distance
741
11,658
Surface Temperature
3,695
0
Color Index (B-V)
2
Position
19
Right Ascension
13
-41
Declination
67
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Data sourced from HYG Database (Free for any purpose, including commercial).