Exoplanet · mini-Neptune
EPIC 249893012 d
EPIC 249893012 d is a mini-Neptune orbiting the star EPIC 249893012. Its year lasts 35.7 Earth days. It was discovered in 2020 by the Transit method.
| Host star | EPIC 249893012 |
|---|---|
| Distance | 1,048 light-years (321.3 pc) |
| Orbital period | 35.7 days |
| Orbital radius | 0.22 AU |
| Eccentricity | 0.150 |
| Radius | 3.94 R⊕ · 0.352 R♃ |
| Mass | 10.2 M⊕ · 0.032 M♃ |
| Density | 0.91 g/cm³ |
| Surface gravity | 0.656 × Earth |
| Equilibrium temperature | 752 K (479 °C) |
| Stellar flux received | 53 × Earth |
| Discovery method | Transit |
| Discovery year | 2020 |
| Discovered by | K2 |
Habitable zone
Inside the inner edge of the habitable zone: it receives 53 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 4.1° across: 7.8 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 11.53. Visible from the whole Southern Hemisphere and north to latitude 73° N. South of latitude 73° S it never sets. It stands highest at midnight in May, the best time to observe it.
Light's journey
The light you see tonight set out around the year 978. 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 249893012 b 3.6-day orbit · 1.95 R⊕
- EPIC 249893012 c 15.6-day orbit · 3.67 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.