M-type star · red
HR 2804
HR 2804 is a red in the constellation Lynx 1,035 ly from Earth. Its surface is about 3,635 K, about 0.6 times the Sun's surface temperature, and it shines at 420× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 1,035 years ago.
Also catalogued as HD 57646 · HIP 35984
3,635 K
temperature
5.80
apparent magnitude
420× ☉
luminosity vs Sun
K5III
spectral type
Distance & comparison with our Sun
1,035 years
at light speed from Earth
0.63×
as hot as the Sun
420×
the Sun's light output
-1.71
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.