K-type star · orange
18 Sex
18 Sex is an orange in the constellation Sextans 473 ly from Earth. Its surface is about 4,114 K, about 0.7 times the Sun's surface temperature, and it shines at 102× the Sun's brightness. At magnitude 5.6 it is bright enough to see with the naked eye; the light you see left it 473 years ago.
Also catalogued as HR 3996 · HD 88333 · HIP 49865
4,114 K
temperature
5.64
apparent magnitude
102× ☉
luminosity vs Sun
K2III
spectral type
Distance & comparison with our Sun
473 years
at light speed from Earth
0.71×
as hot as the Sun
102×
the Sun's light output
-0.17
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.