M-type star · red

HR 2731

HR 2731 is a red in the constellation Monoceros 1,294 ly from Earth. Its surface is about 3,670 K, about 0.6 times the Sun's surface temperature, and it shines at 656× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 1,294 years ago.

1,294 lybrightness mag 5.80K5III

Also catalogued as HD 55775 · HIP 34975

3,670 K
temperature
5.80
apparent magnitude
656× ☉
luminosity vs Sun
K5III
spectral type
Distance & comparison with our Sun
1,294 years
at light speed from Earth
0.64×
as hot as the Sun
656×
the Sun's light output
-2.19
absolute magnitude
Explore from here · roam the neighborhood
HR 2731M-type
Sky regionMonocerosthis direction
StarHR 265584 ly
Star19 Mon99 ly
StarHR 2833110 ly
StarBeta Monstar
StarAlpha Monstar
Nearest stars
Bright stars in Monoceros
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.8To see it no equipment neededLook toward Monoceros

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.