OGLE-2018-BLG-0799Lb

OGLE-2018-BLG-0799Lb

Discovery[1]
Discovery site	OGLE
Discovery date	October 2020 (published August 2022)
Detection method	Gravitional Microlensing
Orbital characteristics
Semi-major axis	1.38+0.61 −0.31
Physical characteristics
Mass	0.22 MJ

OGLE-2018-BLG-0799Lb is a sub-Saturn-mass exoplanet discovered by the Optical Gravitational Lensing Experiment (OGLE) collaboration, through a gravitational microlensing event that occurred in May 2018. The discovery was announced in October 2020, and published in August 2022.^[1]

It has a mass of 0.22 Jupiter masses and is 14,400 light years away from earth. It orbits a dwarf star of approximately 0.08 solar masses.^[1][2]

References

1. Zang, Weicheng; Shvartzvald, Yossi; Udalski, Andrzej; Yee, Jennifer C.; Lee, Chung-Uk; Sumi, Takahiro; Zhang, Xiangyu; Yang, Hongjing; Mao, Shude; Novati, Sebastiano Calchi; Gould, Andrew (August 2022). "OGLE-2018-BLG-0799Lb: a q∼2.7×10⁻³ planet with Spitzer parallax". Monthly Notices of the Royal Astronomical Society. 514 (4): 5952–5968. arXiv:2010.08732. Bibcode:2022MNRAS.514.5952Z. doi:10.1093/mnras/stac1631.
2. "New sub-Saturn-mass exoplanet discovered". phys.org. Retrieved 26 November 2020.