CastorvsTiaki
Castor has a higher Declination (32 vs -47 °), while Castor has a higher Absolute Magnitude (1 vs -2 mag), while Tiaki has a higher Color Index (B-V) (2 vs 0).
Brightness
2
Apparent Magnitude
2
1
Absolute Magnitude
-2
49
Luminosity
381
Physical Properties
51
Distance
177
9,720
Surface Temperature
3,635
0
Color Index (B-V)
2
Position
8
Right Ascension
23
32
Declination
-47
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Data sourced from HYG Database (Free for any purpose, including commercial).