B-type star · blue-white star
HR 7339
HR 7339 is a blue-white star in the constellation Sagittarius 782 ly from Earth. Its surface is about 11,424 K, about 2.0 times the Sun's surface temperature, and it shines at 158× the Sun's brightness. At magnitude 6.3 it is within reach of 50 mm binoculars; the light you see left it 782 years ago.
Also catalogued as HD 181558 · HIP 95159
11,424 K
temperature
6.25
apparent magnitude
158× ☉
luminosity vs Sun
B5III
spectral type
Distance & comparison with our Sun
782 years
at light speed from Earth
1.98×
as hot as the Sun
158×
the Sun's light output
-0.65
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.