KMT-2021-BLG-1554L b
KMT-2021-BLG-1554L b is a Neptune-like planet orbiting KMT-2021-BLG-1554L in the constellation Scorpius. It lies about 25,049 light-years from Earth and was discovered in 2022 using the microlensing method.
Is KMT-2021-BLG-1554L b in the Habitable Zone?
The position of KMT-2021-BLG-1554L b relative to the habitable zone of KMT-2021-BLG-1554L cannot be precisely determined from the available orbital data.
Orbit and Year Length
KMT-2021-BLG-1554L b orbits at an average distance of 0.720 AU — comparable to the inner Solar System.
How Was KMT-2021-BLG-1554L b Discovered?
KMT-2021-BLG-1554L b was discovered in 2022 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-2021-BLG-1554L b?
KMT-2021-BLG-1554L b is 25,048.8 light-years (7,680.0 parsecs) from Earth. Light arriving here tonight left the planet about 25,049 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 440,858,880 years to make the journey.
The Host Star: KMT-2021-BLG-1554L
KMT-2021-BLG-1554L
- Mass
- 0.08 M☉
Planetary System
KMT-2021-BLG-1554L b is the only planet known to orbit KMT-2021-BLG-1554L so far.
KMT-2021-BLG-1554L b — Complete Data
| Mass | 38.14 Earth masses (0.120 Jupiter masses) |
|---|---|
| Orbital distance | 0.720 AU |
| Distance from Earth | 25,048.8 light-years (7,680.0 parsecs) |
| Constellation | Scorpius |
| Discovery method | Microlensing |
| Discovery facility | KMTNet |
| Discovery year | 2022 |
Data: NASA Exoplanet Archive, last updated 2022-10-31. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About KMT-2021-BLG-1554L b
Is KMT-2021-BLG-1554L b habitable?
KMT-2021-BLG-1554L b is not known to orbit within the habitable zone of KMT-2021-BLG-1554L, and as a Neptune-like planet it is an unlikely candidate for life as we know it.
How far away is KMT-2021-BLG-1554L b?
KMT-2021-BLG-1554L b is about 25,049 light-years from Earth in the constellation Scorpius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 440,858,880 years to get there.
Explore KMT-2021-BLG-1554L b in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
