Epsilon Sagittarii

Starbox begin
name=Epsilon Sagittarii Starbox observe
epoch=J2000
ra=18^h 24^m 10.3^s
dec=-34° 23′ 03.5″
appmag_v=1.79
constell=Sagittarius Starbox character
class=B9.5 III
b-v=-0.03
u-b=-0.13
variable=? Starbox astrometry
radial_v=-15
prop_mo_ra=-39.61
prop_mo_dec=-124.05
parallax=22.55
p_error=1.02
absmag_v=-1.45 Starbox detail
mass=5
radius=7
luminosity=375 | temperature=9,200
metal=?
rotation=140 km/s.
age=? Starbox catalog
names=Kaus Australis, 20 Sagittarii, HR 6879, HD 169022, SAO 210091, FK5 689, CCDM 18242-3423, HIP 90185.

Epsilon Sagittarii (ε Sgr / ε Sagittarii) is a binary star that lies 144.64 light-years distant in the constellation Sagittarius. It has a faint, 14th magnitude companion, Epsilon Sagittarii B, 32 arcseconds distant.

The star forms the base of the archer's "bow" in Sagittarius and also marks the base of the spout of the so-called "Teapot" asterism.Its traditional name is Kaus Australis, from Arabic قوس "qaws" 'bow' and Latin "austrālis" 'southern'.

External links

* [http://www.astro.uiuc.edu/~kaler/sow/kausaus.html Kaus australis]