K-type star · orange
HR 1681
HR 1681 is an orange in the constellation Orion 325 ly from Earth. Its surface is about 4,519 K, about 0.8 times the Sun's surface temperature, and it shines at 31.13× the Sun's brightness. At magnitude 6.1 it is within reach of 50 mm binoculars; the light you see left it 325 years ago.
Also catalogued as HD 33419 · HIP 24041
4,519 K
temperature
6.11
apparent magnitude
31.13× ☉
luminosity vs Sun
K0III
spectral type
Distance & comparison with our Sun
325 years
at light speed from Earth
0.78×
as hot as the Sun
31.13×
the Sun's light output
1.12
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.