Zeta Capricorni
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| Observation data Equinox J2000.0 |
|
|---|---|
| Constellation | Capricornus |
| Right ascension | 21h26m40.0s |
| Declination | −22°24′41″ |
| Apparent magnitude (V) | +3.77 |
| Distance | 398 ± 44 ly (122 ± 13 pc) |
| Spectral type | G4Ibp |
| Other designations | |
Zeta Capricorni, with the traditional but seldomly used name Marakk, (ζ Cap / ζ Capricorni) is a binary star in the constellation Capricornus. It is approximately 398 light years from Earth.
The primary component, ζ Capricorni A, is 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.
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