OGLE-2005-BLG-071Lb

OGLE-2005-BLG-071Lb is a planet discovered by the Optical Gravitational Lensing Experiment (OGLE) and others in 2005, using gravitational microlensing.^[1] According to the best fit model, it has about 3.5 times the mass of Jupiter and a projected separation of 3.6 astronomical units from the star. This would result in an effective temperature around 50 K, similar to that of Neptune. However, an alternative model which gives a slightly lower mass of 3.3 times that of Jupiter and a projected separation of 2.1 AU is only slightly less likely. It may be the most massive planet currently known around a red dwarf star (though only lower limits are known for those planets detected by the radial velocity method).^[2]

OGLE-2005-BLG-071Lb

Discovery
Discovered by	Udalski et al.
Discovery date	27 May 2005
Detection method	Gravitational microlensing
Orbital characteristics
Star	OGLE-2005-BLG-071L
Physical characteristics
Mass	3.8 +0.3 −0.4 or 3.4 ± 0.3 MJ

See also

• Optical Gravitational Lensing Experiment or OGLE