Star · star
Castor B
Also catalogued as 66Alp Gem · HR 2890 · HD 60178 · Gliese Gl 278B
–
temperature
2.85
apparent magnitude
15.76× ☉
luminosity vs Sun
A m
spectral type
Distance & comparison with our Sun
52 years
at light speed from Earth
–
as hot as the Sun
15.76×
the Sun's light output
1.86
absolute magnitude
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VISIBLE TO THE NAKED EYE
Star data from the HYG database v4.2 (Astronexus, CC BY-SA 4.0). Temperature and colour computed by gravityfinder from the B-V colour index; the illustration is generated from that temperature, not a photograph.