Castor BvsElectra
Castor B has a higher Absolute Magnitude (2 vs -2 mag), while Electra has a higher Luminosity (436 vs 16 × Sun), while Electra has a higher Distance (405 vs 52 light-years).
Brightness
3
Apparent Magnitude
4
2
Absolute Magnitude
-2
16
Luminosity
436
Physical Properties
52
Distance
405
N/A
Surface Temperature
11,658
N/A
Color Index (B-V)
0
Position
8
Right Ascension
4
32
Declination
24
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Data sourced from HYG Database (Free for any purpose, including commercial).