M-type star · red
HR 7023
HR 7023 is a red in the constellation Sagittarius 1,013 ly from Earth. Its surface is about 3,662 K, about 0.6 times the Sun's surface temperature, and it shines at 249× the Sun's brightness. At magnitude 6.3 it is within reach of 50 mm binoculars; the light you see left it 1,013 years ago.
Also catalogued as HD 172816 · HIP 91781
3,662 K
temperature
6.32
apparent magnitude
249× ☉
luminosity vs Sun
M4III
spectral type
Distance & comparison with our Sun
1,013 years
at light speed from Earth
0.63×
as hot as the Sun
249×
the Sun's light output
-1.14
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.