Zeta Capricorni

Starbox short
name=ζ Capricorni
epoch=J2000.0
constell=Capricornus
ra=21^h26^m40.0^s
dec=−22°24′41″
spectral=G4Ib Ba2
appmag_v=+3.77
dist_ly=398 ± 44
dist_pc=122 ± 13
names=34 Capricorni HR 8204, HD 204075, CD−22°15388, FK5 806, HIP 105881, SAO 190341, GC 30020, ADS 14971, CCDM J21267-2225

Zeta Capricorni, (ζ Cap / ζ Capricorni), is a fourth-magnitude star in the constellation Capricornus, with the traditional but seldom used name Marakk, which is Arabic for "loins" (of the goat).

ζ Capricorni is a binary star, with the primary component ζ Capricorni A being a yellow G-type supergiant with an apparent magnitude of +3.77. It is considered one of the prototypical examples of a Barium star, which makes it having overabundances of carbon molecules (such as C₂) and s-process elements. It is especially notable for having an overabundance of the s-process element praseodymium.

Its companion, ζ Capricorni B is a white dwarf.

The ζ Capricorni binary system is approximately 398 light years from Earth.

References

*
* [http://www.astro.uiuc.edu/~kaler/sow/zetacap.html Jim Kaler: Zeta Capricorni]