M-type star · red

HR 2802

HR 2802 is a red in the constellation Canis Major 640 ly from Earth. Its surface is about 3,644 K, about 0.6 times the Sun's surface temperature, and it shines at 150× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 640 years ago.

640 lybrightness mag 5.87M3III

Also catalogued as HD 57615 · HIP 35626

3,644 K
temperature
5.87
apparent magnitude
150× ☉
luminosity vs Sun
M3III
spectral type
Distance & comparison with our Sun
640 years
at light speed from Earth
0.63×
as hot as the Sun
150×
the Sun's light output
-0.59
absolute magnitude
Explore from here · roam the neighborhood
HR 2802M-type
Sky regionCanis Majorthis direction
StarHR 282232 ly
StarHR 294448 ly
StarHR 275656 ly
StarAdharastar
StarWezenstar
Nearest stars
Bright stars in Canis Major
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.9To see it no equipment neededLook toward Canis Major

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.