Exoplanet · gas giant
Kepler-424 c
Kepler-424 c is a gas giant orbiting the star Kepler-424. Its year lasts 223 Earth days. It was discovered in 2014 by the Radial Velocity method.
| Host star | Kepler-424 |
|---|---|
| Distance | 2,279 light-years (698.6 pc) |
| Orbital period | 223 days |
| Orbital radius | 0.73 AU |
| Radius | 12.7 R⊕ · 1.13 R♃ |
| Mass (minimum) | 2,220 M⊕ · 6.97 M♃ |
| Density | 5.94 g/cm³ |
| Equilibrium temperature | 299 K (26 °C) |
| Stellar flux received | 1.33 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2014 |
| Discovered by | McDonald Observatory |
Habitable zone
At the edge of the habitable zone (within the optimistic limits): liquid water would be possible only with a favourable atmosphere.
Its star in the sky
In the planet's sky its star is a disc 0.69° across: 1.3 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 14.43. Visible from the whole Northern Hemisphere and south to latitude 41° S. North of latitude 41° N it never sets. It stands highest at midnight in July, the best time to observe it.
Light's journey
The light you see tonight set out around 254 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 40 million years.
Planets in the same system
- Kepler-424 b 3.31-day orbit · 9.98 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.