KMT-2022-BLG-1818L b
KMT-2022-BLG-1818L b is a cold gas giant orbiting KMT-2022-BLG-1818L in the constellation Sagittarius. It lies about 17,286 light-years from Earth and was discovered in 2026 using the microlensing method.
Is KMT-2022-BLG-1818L b in the Habitable Zone?
The position of KMT-2022-BLG-1818L b relative to the habitable zone of KMT-2022-BLG-1818L cannot be precisely determined from the available orbital data.
Orbit and Year Length
KMT-2022-BLG-1818L b orbits at an average distance of 2.600 AU.
How Was KMT-2022-BLG-1818L b Discovered?
KMT-2022-BLG-1818L b was discovered in 2026 using the microlensing method, with observations from KMTNet.
Gravitational microlensing detects a planet when its host star passes in front of a more distant background star, and the planet's gravity adds a brief, telltale spike to the magnified starlight. It can find planets thousands of light-years away.
How Far Away Is KMT-2022-BLG-1818L b?
KMT-2022-BLG-1818L b is 17,286.3 light-years (5,300.0 parsecs) from Earth. Light arriving here tonight left the planet about 17,286 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 304,238,880 years to make the journey.
The Host Star: KMT-2022-BLG-1818L
KMT-2022-BLG-1818L
- Mass
- 0.79 M☉
The KMT-2022-BLG-1818L Planetary System
KMT-2022-BLG-1818L b is one of 2 known planets in the KMT-2022-BLG-1818L system. Its siblings:
- KMT-2022-BLG-1818L c (Cold Gas Giant)
KMT-2022-BLG-1818L b — Complete Data
| Mass | 1,271.31 Earth masses (4.000 Jupiter masses) |
|---|---|
| Orbital distance | 2.600 AU |
| Distance from Earth | 17,286.3 light-years (5,300.0 parsecs) |
| Constellation | Sagittarius |
| Discovery method | Microlensing |
| Discovery facility | KMTNet |
| Discovery year | 2026 |
Data: NASA Exoplanet Archive, last updated 2026-01-29. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About KMT-2022-BLG-1818L b
Is KMT-2022-BLG-1818L b habitable?
KMT-2022-BLG-1818L b is not known to orbit within the habitable zone of KMT-2022-BLG-1818L, and as a cold gas giant it is an unlikely candidate for life as we know it.
How far away is KMT-2022-BLG-1818L b?
KMT-2022-BLG-1818L b is about 17,286 light-years from Earth in the constellation Sagittarius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 304,238,880 years to get there.
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