M-type star · red

HR 5123

HR 5123 is a red in the constellation Boötes 459 ly from Earth. Its surface is about 3,659 K, about 0.6 times the Sun's surface temperature, and it shines at 88.80× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 459 years ago.

459 lybrightness mag 5.72M2III

Also catalogued as HD 118508 · HIP 66417

3,659 K
temperature
5.72
apparent magnitude
88.80× ☉
luminosity vs Sun
M2III
spectral type
Distance & comparison with our Sun
459 years
at light speed from Earth
0.63×
as hot as the Sun
88.80×
the Sun's light output
-0.02
absolute magnitude
Explore from here · roam the neighborhood
HR 5123M-type
Sky regionBoötesthis direction
StarHR 510221 ly
Star10 Boo49 ly
StarHR 498453 ly
StarIzarstar
StarMuphridstar
Nearest stars
Bright stars in Boötes
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.7To see it no equipment neededLook toward Boötes

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.