CastorvsHeze
Castor has a higher Declination (32 vs -1 °), while Heze has a higher Color Index (B-V) (0 vs 0), while Heze has a higher Absolute Magnitude (2 vs 1 mag).
Brightness
2
Apparent Magnitude
3
1
Absolute Magnitude
2
49
Luminosity
20
Physical Properties
51
Distance
74
9,720
Surface Temperature
8,895
0
Color Index (B-V)
0
Position
8
Right Ascension
14
32
Declination
-1
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Data sourced from HYG Database (Free for any purpose, including commercial).