Castor BvsFormosa
Formosa has a higher Distance (399 vs 52 light-years), while Formosa has a higher Apparent Magnitude (6 vs 3 mag), while Formosa has a higher Luminosity (34 vs 16 × Sun).
Brightness
3
Apparent Magnitude
6
2
Absolute Magnitude
1
16
Luminosity
34
Physical Properties
52
Distance
399
N/A
Surface Temperature
4,719
N/A
Color Index (B-V)
1
Position
8
Right Ascension
12
32
Declination
20
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Data sourced from HYG Database (Free for any purpose, including commercial).