Eta Capricorni

Starbox short
name=η Capricorni
epoch=J2000.0
constell=Capricornus
ra=21^h04^m24.3^s
dec=−19°51′18″
spectral=A5V
appmag_v=+4.82
dist_ly=158 ± 11
dist_pc=48 ± 3
names=Arm, 22 Capricorni, HR 8060, HD 200499, Gl 816.2, BD−20°6115, HIP 104019, SAO 189986, GC 29419, CCDM J21044-1951

Eta Capricorni (η Cap / η Capricorni) is a binary star in the constellation Capricornus. It also has the traditional star name Arm. It is approximately 158 light years from Earth.

The primary component, η Capricorni A, is a white A-type main sequence dwarf with an apparent magnitude of +4.82. Its companion, η Capricorni B, has an apparent magnitude of +6.5 and is located 0.34 arcseconds from the primary.