Exoplanet · mini-Neptune
EPIC 220674823 c
EPIC 220674823 c is a mini-Neptune orbiting the star EPIC 220674823. Its year lasts 13.3 Earth days. It was discovered in 2016 by the Transit method.
| Host star | EPIC 220674823 |
|---|---|
| Distance | 797.8 light-years (244.6 pc) |
| Orbital period | 13.3 days |
| Orbital radius | 0.108 AU |
| Eccentricity | 0.180 |
| Radius | 2.71 R⊕ · 0.242 R♃ |
| Mass | 7.9 M⊕ · 0.0249 M♃ |
| Density | 2.34 g/cm³ |
| Surface gravity | 1.07 × Earth |
| Equilibrium temperature | 838 K (565 °C) |
| Stellar flux received | 70 × Earth |
| Discovery method | Transit |
| Discovery year | 2016 |
| Discovered by | K2 |
Habitable zone
Inside the inner edge of the habitable zone: it receives 70 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 4.9° across: 9.2 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 12.16. Visible from the whole Northern Hemisphere and south to latitude 79° S. North of latitude 79° N it never sets. It stands highest at midnight in October, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1228. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 14 million years.
Planets in the same system
- EPIC 220674823 b 0.571-day orbit · 1.61 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.