KMT-2022-BLG-0440L b

KMT-2022-BLG-0440L b is a Neptune-like exoplanet, located 11,415 light years away in the constellation of Sagittarius. It was discovered in 2023.^[2]

KMT-2022 BLG-0440L b

Discovery[1]
Discovery date	2023
Detection method	Microlensing
Orbital characteristics[1]
Semi-major axis	1.9±0.7 AU
Orbital period (sidereal)	3.6 yrs
Star	KMT-2022-BLG-0440
Physical characteristics[1]
Mass	0.0485+0.0302 −0.0223 MJ

Characteristics

Mass and radius

KMT-2002-BLG-0440L b was discovered by the gravitational microlensing method. This exoplanet's mass is 0.0485+0.302
−0.0223 M_J or 15.4 Earth mass. The exoplanet has a planet radius of 0.361 times that of Jupiter and its orbital radius is 1.9 AU.^[2]

Orbit

KMT-2022-BLG-0440L b has a longer orbital period than Earth. The exoplanet has an orbital period of 3.6 years, just like KIC 5951458 b. KMT-2022-BLG-0440L b has a semi-major axis of 1.9±0.7 AU.

Host star

The host star of KMT-2022-BLG-0440L b is KMT-2022-BLG-0440L.

The star type is currently unknown and is not visible with the unaided eye from Earth. The star has a stellar mass of 0.5300 and has 0.53+31
−26 M_☉.

See also

• List of exoplanets
• List of exoplanets discovered in 2023
• Gravitational microlensing