Exoplanet · Neptune-like planet
KMT-2022-BLG-0440L b
KMT-2022-BLG-0440L b is a Neptune-like planet orbiting the star KMT-2022-BLG-0440L. It was discovered in 2023 by the Microlensing method.
| Host star | KMT-2022-BLG-0440L |
|---|---|
| Distance | 11,400 light-years (3,500 pc) |
| Orbital radius | 1.9 AU |
| Radius | 4.05 R⊕ · 0.361 R♃ |
| Mass | 15.4 M⊕ · 0.0485 M♃ |
| Density | 1.27 g/cm³ |
| Surface gravity | 0.939 × Earth |
| Discovery method | Microlensing |
| Discovery year | 2023 |
| Discovered by | KMTNet |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.10. Visible from the whole Southern Hemisphere and north to latitude 58° N. South of latitude 58° S it never sets. It stands highest at midnight in June, the best time to observe it.
Light's journey
The light you see tonight set out 11 thousand years ago. At that time the first farming villages were being founded; there was no writing yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 203 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.