Exoplanet · mini-Neptune
EPIC 212737443 b
EPIC 212737443 b is a mini-Neptune orbiting the star EPIC 212737443. Its year lasts 13.6 Earth days. It was discovered in 2019 by the Transit method.
| Host star | EPIC 212737443 |
|---|---|
| Distance | 1,097 light-years (336.3 pc) |
| Orbital period | 13.6 days |
| Orbital radius | 0.098 AU |
| Eccentricity | 0.200 |
| Radius | 2.59 R⊕ · 0.231 R♃ |
| Mass | 7.2 M⊕ · 0.0227 M♃ (estimated from the radius) |
| Density | 2.29 g/cm³ |
| Equilibrium temperature | 536 K (263 °C) |
| Stellar flux received | 18.5 × Earth |
| Discovery method | Transit |
| Discovery year | 2019 |
| Discovered by | K2 |
Habitable zone
Inside the inner edge of the habitable zone: it receives 18.5 times the light the Earth does, too hot to keep liquid water on its surface.
Its star in the sky
In the planet's sky its star is a disc 3.7° across: 6.9 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 14.81. Visible from the whole Southern Hemisphere and north to latitude 83° N. It stands highest at midnight in April, the best time to observe it.
Light's journey
The light you see tonight set out around the year 929. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 19 million years.
Planets in the same system
- EPIC 212737443 c 65.6-day orbit · 2.69 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.