M-type star · red

Mu CrB

Mu CrB is a red in the constellation Corona Borealis 619 ly from Earth. Its surface is about 3,581 K, about 0.6 times the Sun's surface temperature, and it shines at 276× the Sun's brightness. At magnitude 5.1 it is bright enough to see with the naked eye; the light you see left it 619 years ago.

619 lybrightness mag 5.14M2III

Also catalogued as HR 5800 · HD 139153 · HIP 76307

3,581 K
temperature
5.14
apparent magnitude
276× ☉
luminosity vs Sun
M2III
spectral type
Distance & comparison with our Sun
619 years
at light speed from Earth
0.62×
as hot as the Sun
276×
the Sun's light output
-1.25
absolute magnitude
Explore from here · roam the neighborhood
Mu CrBM-type
Sky regionCorona Borealisthis direction
Star2 Her70 ly
StarHR 598376 ly
StarHR 605085 ly
StarAlpheccastar
StarNusakanstar
Nearest stars
Bright stars in Corona Borealis
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.1To see it no equipment neededLook toward Corona Borealis

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.