Exoplanet · Neptune-like planet
KMT-2019-BLG-1216L b
KMT-2019-BLG-1216L b is a Neptune-like planet orbiting the star KMT-2019-BLG-1216L. It was discovered in 2023 by the Microlensing method.
| Host star | KMT-2019-BLG-1216L |
|---|---|
| Distance | 8,937 light-years (2,740 pc) |
| Orbital radius | 2.44 AU |
| Radius | 5.98 R⊕ · 0.533 R♃ |
| Mass | 29.9 M⊕ · 0.094 M♃ |
| Density | 0.768 g/cm³ |
| Surface gravity | 0.835 × Earth |
| Discovery method | Microlensing |
| Discovery year | 2023 |
| Discovered by | KMTNet |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.90. Visible from the whole Southern Hemisphere and north to latitude 55° N. South of latitude 55° 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 8,937 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 159 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.