Exoplanet · gas giant
MOA-2009-BLG-387L b
MOA-2009-BLG-387L b is a gas giant orbiting the star MOA-2009-BLG-387L. Its year lasts 1,980 Earth days. It was discovered in 2010 by the Microlensing method.
| Host star | MOA-2009-BLG-387L |
|---|---|
| Distance | 18,600 light-years (5,690 pc) |
| Orbital period | 5.42 years |
| Orbital radius | 1.8 AU |
| Radius | 13.2 R⊕ · 1.18 R♃ |
| Mass | 830 M⊕ · 2.61 M♃ |
| Density | 1.98 g/cm³ |
| Surface gravity | 4.76 × Earth |
| Discovery method | Microlensing |
| Discovery year | 2010 |
| Discovered by | MOA |
In the sky
A telescope is needed to see it: its apparent magnitude is 31.11. Visible from the whole Southern Hemisphere and north to latitude 56° N. South of latitude 56° 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 19 thousand years ago. At that time Homo sapiens was spreading out of Africa; there was no farming yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 329 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.