HD 178911

Starbox short
name = HD 178911
epoch = J2000.0
constell = Lyra
ra = 19h 09m 04.3838s
dec = +34º 36' 01.6250″
spectral = G1V
appmag_v = 6.74
absmag_v = 3.29
dist_ly = 160
dist_pc = 49.0
names = BD+34 3439, HIP 94076, HR 7272, SAO 67879

HD 178911 is a binary star system in the constellation Lyra. The secondary star (designated as HD 178911 B) has an apparent magnitude of 6.74 and a spectral type of G1V, which is very similar to our Sun at a distance of 160 light years. The age of the star is slightly older and have significantly higher metallicity than our Sun.

As it is typical for few metal-rich Sun-like stars, it has at least one planet in orbit around this secondary star.

HD 178911 Bb

Planetbox begin
name = HD 178911 Bb Planetbox orbit
semimajor = 0.345
eccentricity = 0.139±0.14
period = 71.511±0.011
ang_dist = 7.04
long_peri = 172.3±5
t_peri = 2,451,378.23±83
semi-amp = 346.9±4.2Planetbox character
mass = >7.35 Planetbox discovery
discovery_date = April 4, 2001
discovery_location = Hawaii, United States
discoverers = Zucker et al.
discovery_method = Radial velocity
discovery_status=Published HD 178911 Bb is a planet discovered in 2001 by Zucker who used radial velocity method. The minimum mass of this giant planet is 7.35 times that of Jupiter that orbits close to the star. The period of the planet is 71.5 days and the semi-amplitude is 346.9 m/s.

References

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External links

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*cite web |url=http://www.exoplanets.org/planets.shtml |title=Planet Table |work=Catalog of Nearby Exoplanet |accessdate=December 12 |accessyear=2007