The KMT-2021-BLG-1689L system contains 1 exoplanet. It is located 23483.23 light years away from the solar system.
| Mass | 0.58 solar masses |
| Radius | 0.32 solar radiae |
| Temperature | 4570 kelvin |
| Stellar Metallicity | - decimal exponent |
| Age | - billion years |
At more than 10 Earth masses, KMT-2021-BLG-1689L b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 46.000 Earth masses |
| Density | 0.552 grams per cubic centimeter |
| Radius | 7.710 Earth radiae |
| Semi-major Axis | 2.5 AU |
| Eccentricity | NaN |
| Orbital Period | NaN days |
| Discovery Method | Microlensing |
| Discovery Facility | KMTNet |
| Discovery Telescope | 1.6 m wide-field telescope |
| Discovery Instrument | 18k Mosaic CCD camera |
| Discovery Date | 2022-07 |
| Reference | Yang et al. 2022 |