B-type star · blue-white star
4 Ari
4 Ari is a blue-white star in the constellation Aries 275 ly from Earth. Its surface is about 10,639 K, about 1.8 times the Sun's surface temperature, and it shines at 28.08× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 275 years ago.
Also catalogued as HR 522 · HD 10982 · HIP 8387
10,639 K
temperature
5.86
apparent magnitude
28.08× ☉
luminosity vs Sun
B9.5V
spectral type
Distance & comparison with our Sun
275 years
at light speed from Earth
1.84×
as hot as the Sun
28.08×
the Sun's light output
1.23
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.