B-type star · blue-white star
HR 7128
HR 7128 is a blue-white star in the constellation Sagittarius 636 ly from Earth. Its surface is about 10,395 K, about 1.8 times the Sun's surface temperature, and it shines at 143× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 636 years ago.
Also catalogued as HD 175360 · HIP 92931
10,395 K
temperature
5.91
apparent magnitude
143× ☉
luminosity vs Sun
B6III
spectral type
Distance & comparison with our Sun
636 years
at light speed from Earth
1.80×
as hot as the Sun
143×
the Sun's light output
-0.54
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.