K-type star · orange
HR 9009
HR 9009 is an orange in the constellation Aquarius 305 ly from Earth. Its surface is about 4,585 K, about 0.8 times the Sun's surface temperature, and it shines at 38.55× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 305 years ago.
Also catalogued as HD 223170 · HIP 117314
4,585 K
temperature
5.74
apparent magnitude
38.55× ☉
luminosity vs Sun
K0III
spectral type
Distance & comparison with our Sun
305 years
at light speed from Earth
0.79×
as hot as the Sun
38.55×
the Sun's light output
0.89
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.