F-type star · yellow-white star

Theta Boo

Theta Boo is a yellow-white star in the constellation Boötes 47.4 ly from Earth. Its surface is about 6,403 K, about 1.1 times the Sun's surface temperature, and it shines at 4.45× the Sun's brightness. At magnitude 4.0 it is bright enough to see with the naked eye; the light you see left it 47 years ago.

47.4 lybrightness mag 4.04F7V

Also catalogued as HR 5404 · HD 126660 · HIP 70497 · Gliese Gl 549A

6,403 K

temperature

4.04

apparent magnitude

4.45× ☉

luminosity vs Sun

F7V

spectral type

Distance & comparison with our Sun

47 years

at light speed from Earth

1.11×

as hot as the Sun

4.45×

the Sun's light output

3.23

absolute magnitude

Explore from here · roam the neighborhood

Theta BooF-type

Sky regionBoötesthis direction

StarGliese Gl 575B8.2 ly

Nearest stars

Bright stars in Boötes

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 4.0To 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.