A-type star · white star
HR 7439
HR 7439 is a white star in the constellation Sagittarius 253 ly from Earth. Its surface is about 7,638 K, about 1.3 times the Sun's surface temperature, and it shines at 18.54× the Sun's brightness. At magnitude 6.1 it is within reach of 50 mm binoculars; the light you see left it 253 years ago.
Also catalogued as HD 184705 · HIP 96440
7,638 K
temperature
6.13
apparent magnitude
18.54× ☉
luminosity vs Sun
F0V
spectral type
Distance & comparison with our Sun
253 years
at light speed from Earth
1.32×
as hot as the Sun
18.54×
the Sun's light output
1.68
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.