K-type star · orange dwarf
HR 8778
HR 8778 is an orange dwarf in the constellation Cassiopeia 285 ly from Earth. Its surface is about 5,002 K, about 0.9 times the Sun's surface temperature, and it shines at 17.80× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 285 years ago.
Also catalogued as HD 217944 · HIP 113852
5,002 K
temperature
6.43
apparent magnitude
17.80× ☉
luminosity vs Sun
G8IV
spectral type
Distance & comparison with our Sun
285 years
at light speed from Earth
0.87×
as hot as the Sun
17.80×
the Sun's light output
1.72
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.