K-type star · orange dwarf
HR 8721
HR 8721 is an orange dwarf in the constellation Piscis Austrinus 24.8 ly from Earth. Its surface is about 4,528 K, about 0.8 times the Sun's surface temperature, and it shines at 0.13× the Sun's brightness. At magnitude 6.5 it is within reach of 50 mm binoculars; the light you see left it 25 years ago.
Also catalogued as HD 216803 · HIP 113283 · Gliese Gl 879
4,528 K
temperature
6.48
apparent magnitude
0.13× ☉
luminosity vs Sun
K4Vp
spectral type
Distance & comparison with our Sun
25 years
at light speed from Earth
0.78×
as hot as the Sun
0.13×
the Sun's light output
7.07
absolute magnitude
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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.