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| Discovery [1] | |
|---|---|
| Discovered by | Jennifer C. Yee, et al. |
| Discovery site | OGLE |
| Discovery date | January 2021 |
| Microlensing | |
| Orbital characteristics [1] | |
| 1.45±0.28—1.90±0.43 AU [note 1] | |
| Star | OGLE-2019-BLG-0960L |
| Physical characteristics [1] | |
| Mass | 1.8±0.4—2.5±0.6 M🜨 [note 1] |
OGLE-2019-BLG-0960Lb is an exoplanet that was discovered in January 2021 by gravitational microlensing. It is approximately twice the mass of Earth, making it a super-Earth. At the time of discovery, it was the lowest mass-ratio planet to be detected via microlensing; that is, the least massive planet relative to the mass of its host star. [1] Its host star, OGLE-2019-BLG-0960L, has an mass between 0.3 and 0.6 M☉. [1]
References
- ^ a b c d e Yee, Jennifer C.; Zang, Weicheng; Udalski, Andrzej; Ryu, Yoon-Hyun; Green, Jonathan; Hennerley, Steve; Marmont, Andrew; Sumi, Takahiro; Mao, Shude; Gromadzki, Mariusz; Mróz, Przemek (2021-01-12). "OGLE-2019-BLG-0960 Lb: The Smallest Microlensing Planet". The Astronomical Journal. 162 (5): 180. arXiv: 2101.04696. Bibcode: 2021AJ....162..180Y. doi: 10.3847/1538-3881/ac1582. S2CID 231592669.
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