B-type star · blue-white star
HR 4705
HR 4705 is a blue-white star in the constellation Coma Berenices 337 ly from Earth. Its surface is about 10,277 K, about 1.8 times the Sun's surface temperature, and it shines at 30.56× the Sun's brightness. At magnitude 6.2 it is within reach of 50 mm binoculars; the light you see left it 337 years ago.
Also catalogued as HD 107655 · HIP 60327
10,277 K
temperature
6.21
apparent magnitude
30.56× ☉
luminosity vs Sun
A0V
spectral type
Distance & comparison with our Sun
337 years
at light speed from Earth
1.78×
as hot as the Sun
30.56×
the Sun's light output
1.14
absolute magnitude
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BINOCULARS NEEDED
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.