HD 33564 b

Discovery
Discovered by	Gallandet al.
Discovery site	Haute-Provence Observatory
Discovery date	September 3, 2005
Detection method	Doppler Spectroscopy
Orbital characteristics
Semi-major axis	1.117 ± 0.027 AU (167,100,000 ± 4,000,000 km)
Eccentricity	0.34 ± 0.02
Orbital period (sidereal)	388 ± 3d
Argument of periastron	205 ± 4
Semi-amplitude	232 ± 5
Star	HD 33564

HD 33564 b is anextrasolar planet located approximately 68light-years away in theconstellation ofCamelopardalis. This planet orbits around F6V starHD 33564. The planet has aneccentric orbit, ranging in distance from 0.737AU atperiastron to 1.497AU atapastron.

HD 33564 b is agas giant in ahabitable zone of its star. Based on a probable 10⁻⁴ fraction of the planet mass as a satellite,^[1] it can have aMars-sized moon with habitable surface.^[2] On the other hand, this mass can be distributed into many small satellites as well.

• HD 81040 b

• "HD 33564".Exoplanets. Archived fromthe original on 2009-11-25. Retrieved2008-08-20.

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