A-type star · white star
HR 6909
HR 6909 is a white star in the constellation Sagittarius 255 ly from Earth. Its surface is about 7,705 K, about 1.3 times the Sun's surface temperature, and it shines at 15.91× the Sun's brightness. At magnitude 6.3 it is within reach of 50 mm binoculars; the light you see left it 255 years ago.
Also catalogued as HD 169851 · HIP 90478
7,705 K
temperature
6.31
apparent magnitude
15.91× ☉
luminosity vs Sun
A7V
spectral type
Distance & comparison with our Sun
255 years
at light speed from Earth
1.33×
as hot as the Sun
15.91×
the Sun's light output
1.85
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.