astro.wikisort.org - Meteorite

HD 178911 Bb is a planet discovered in 2001[2] by Zucker who used the 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.

HD 178911 Bb

Discovery
Discovered by	Zucker et al.[1]
Discovery date	April 4, 2001[2]
Detection method	Radial velocity (Echelle)
Orbital characteristics
Apastron	0.393 AU (58,800,000 km)
Periastron	0.297 AU (44,400,000 km)
Semi-major axis	0.345 AU (51,600,000 km)
Eccentricity	0.139 ± 0.14
Orbital period (sidereal)	71.511 ± 0.011 d 0.19578 y
Average orbital speed	52.7
Time of periastron	2,451,378.23 ± 83
Argument of periastron	172.3 ± 5
Semi-amplitude	346.9 ± 4.2
Star	HD 178911 B

References

External links

• "HD 178911". Exoplanets. Archived from the original on 2012-03-04. Retrieved 2008-11-01.

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