F-type star · yellow-white star

Arkab Posterior

Arkab Posterior is a yellow-white star in the constellation Sagittarius 134 ly from Earth. Its surface is about 7,158 K, about 1.2 times the Sun's surface temperature, and it shines at 28.87× the Sun's brightness. At magnitude 4.3 it is bright enough to see with the naked eye; the light you see left it 134 years ago.

134 lybrightness mag 4.27F2III

Also catalogued as Beta² Sgr · HR 7343 · HD 181623 · HIP 95294

7,158 K

temperature

4.27

apparent magnitude

28.87× ☉

luminosity vs Sun

F2III

spectral type

Distance & comparison with our Sun

134 years

at light speed from Earth

1.24×

as hot as the Sun

28.87×

the Sun's light output

1.20

absolute magnitude

Explore from here · roam the neighborhood

Arkab PosteriorF-type

Sky regionSagittariusthis direction

StarHD 1835774.1 ly

StarMeridiana19 ly

StarZeta Tel24 ly

StarKaus Australisstar

StarNunkistar

Nearest stars

Bright stars in Sagittarius

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 4.3To see it no equipment neededLook toward Sagittarius

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.