M-type star · red

HR 4491

HR 4491 is a red in the constellation Crater 688 ly from Earth. Its surface is about 3,678 K, about 0.6 times the Sun's surface temperature, and it shines at 132× the Sun's brightness. At magnitude 6.2 it is within reach of 50 mm binoculars; the light you see left it 688 years ago.

688 lybrightness mag 6.17M3II/III

Also catalogued as HD 101370 · HIP 56899

3,678 K
temperature
6.17
apparent magnitude
132× ☉
luminosity vs Sun
M3II/III
spectral type
Distance & comparison with our Sun
688 years
at light speed from Earth
0.64×
as hot as the Sun
132×
the Sun's light output
-0.45
absolute magnitude
Explore from here · roam the neighborhood
HR 4491M-type
Sky regionCraterthis direction
StarHR 4539120 ly
StarHR 4348120 ly
StarHR 4284120 ly
StarDelta Crtstar
StarGamma Crtstar
Nearest stars
Bright stars in Crater
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.2To see it 50 mm binocularsLook toward Crater

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.