M-type star · red
28 Sgr
28 Sgr is a red in the constellation Sagittarius 684 ly from Earth. Its surface is about 3,662 K, about 0.6 times the Sun's surface temperature, and it shines at 272× the Sun's brightness. At magnitude 5.4 it is bright enough to see with the naked eye; the light you see left it 684 years ago.
Also catalogued as HR 7046 · HD 173460 · HIP 92111
3,662 K
temperature
5.37
apparent magnitude
272× ☉
luminosity vs Sun
K5III
spectral type
Distance & comparison with our Sun
684 years
at light speed from Earth
0.63×
as hot as the Sun
272×
the Sun's light output
-1.24
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.