B-type star · blue-white star
HR 4072
HR 4072 is a blue-white star in the constellation Ursa Major 339 ly from Earth. Its surface is about 10,824 K, about 1.9 times the Sun's surface temperature, and it shines at 99.63× the Sun's brightness. At magnitude 4.9 it is bright enough to see with the naked eye; the light you see left it 339 years ago.
Also catalogued as HD 89822 · HIP 50933 · Gliese GJ 9327
10,824 K
temperature
4.94
apparent magnitude
99.63× ☉
luminosity vs Sun
A0sp...
spectral type
Distance & comparison with our Sun
339 years
at light speed from Earth
1.88×
as hot as the Sun
99.63×
the Sun's light output
-0.15
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.