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HD 179949

HD 179949 is a 6th magnitude star in the constellation of Sagittarius. It is a yellow-white dwarf (spectral class F8 V), a type of star hotter and more luminous than our Sun. The star is located at 88 light years from Earth and might be visible under exceptionally good conditions to an experienced observer without technical aid; usually binoculars are needed.

Planetary system

The only known planet orbiting HD 179949 is HD 179949 b.[1]

The HD 179949 system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity
b >0.916 ± 0.076 MJ 0.0443 ± 0.0026 3.092514 ± 0.000032 0.022 ± 0.015

References

1. ^ Tinney et al. (2001). "First Results from the Anglo-Australian Planet Search: A Brown Dwarf Candidate and a 51 Peglike Planet". The Astrophysical Journal 551 (1): 507–511. doi:10.1086/320097. http://www.iop.org/EJ/article/0004-637X/551/1/507/53098.html.
2. ^ Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. doi:10.1086/504701. http://www.iop.org/EJ/article/0004-637X/646/1/505/64046.html.


External links

* SIMBAD star entry, planet entry

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