About this world
KMT-2022-BLG-1818L b is a gas giant orbiting KMT-2022-BLG-1818L, a star 17.3 thousand light-years from Earth. It is about 1.2 times the size of Jupiter (its size estimated from its mass) and holds 4 Jupiter masses.
At its size it almost certainly keeps a deep envelope of hydrogen and helium.
It was discovered in 2026 by microlensing with KMTNet. A foreground star's gravity magnifies a background star; a planet adds a blip. KMT-2022-BLG-1818L has 2 known planets; the others are KMT-2022-BLG-1818L c.