B-type star · blue-white star
HR 3946
HR 3946 is a blue-white star in the constellation Hydra 797 ly from Earth. Its surface is about 11,590 K, about 2.0 times the Sun's surface temperature, and it shines at 187× the Sun's brightness. At magnitude 6.1 it is within reach of 50 mm binoculars; the light you see left it 797 years ago.
Also catalogued as HD 86612 · HIP 48943
11,590 K
temperature
6.11
apparent magnitude
187× ☉
luminosity vs Sun
B5V
spectral type
Distance & comparison with our Sun
797 years
at light speed from Earth
2.01×
as hot as the Sun
187×
the Sun's light output
-0.83
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.