M-type star · red

73 UMa

73 UMa is a red in the constellation Ursa Major 417 ly from Earth. Its surface is about 3,674 K, about 0.6 times the Sun's surface temperature, and it shines at 76.14× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 417 years ago.

417 lybrightness mag 5.68M2III

Also catalogued as HR 4745 · HD 108502 · HIP 60795

3,674 K
temperature
5.68
apparent magnitude
76.14× ☉
luminosity vs Sun
M2III
spectral type
Distance & comparison with our Sun
417 years
at light speed from Earth
0.64×
as hot as the Sun
76.14×
the Sun's light output
0.15
absolute magnitude
Explore from here · roam the neighborhood
73 UMaM-type
Sky regionUrsa Majorthis direction
Star75 UMa34 ly
StarAniara39 ly
Star5 CVn42 ly
StarAliothstar
StarDubhestar
Nearest stars
Bright stars in Ursa Major
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.7To see it no equipment neededLook toward Ursa 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.