About this world
KMT-2021-BLG-1077L c is a gas giant orbiting KMT-2021-BLG-1077L, a cool red dwarf (type MV) 26.9 thousand light-years from Earth. It is about 0.95 times the size of Jupiter (its size estimated from its mass) and holds 0.25 Jupiter masses.
At its size it almost certainly keeps a deep envelope of hydrogen and helium.
It was discovered in 2022 by microlensing with KMTNet. A foreground star's gravity magnifies a background star; a planet adds a blip. KMT-2021-BLG-1077L has 2 known planets; the others are KMT-2021-BLG-1077L b.