M-type star · red

HR 8306

HR 8306 is a red in the constellation Cygnus 642 ly from Earth. Its surface is about 3,628 K, about 0.6 times the Sun's surface temperature, and it shines at 211× the Sun's brightness. At magnitude 5.5 it is bright enough to see with the naked eye; the light you see left it 642 years ago.

642 lybrightness mag 5.51M2III

Also catalogued as HD 206749 · HIP 107235

3,628 K
temperature
5.51
apparent magnitude
211× ☉
luminosity vs Sun
M2III
spectral type
Distance & comparison with our Sun
642 years
at light speed from Earth
0.63×
as hot as the Sun
211×
the Sun's light output
-0.96
absolute magnitude
Explore from here · roam the neighborhood
HR 8306M-type
Sky regionCygnusthis direction
StarHR 842264 ly
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Nearest stars
Bright stars in Cygnus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.5To see it no equipment neededLook toward Cygnus

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.