Exoplanet · mini-Neptune
Kepler-1161 b
Kepler-1161 b is a mini-Neptune orbiting the star Kepler-1161. Its year lasts 10.7 Earth days. It was discovered in 2016 by the Transit method.
| Host star | Kepler-1161 |
|---|---|
| Distance | 1,786 light-years (547.7 pc) |
| Orbital period | 10.7 days |
| Orbital radius | 0.0784 AU |
| Eccentricity | 0.000 |
| Radius | 2.13 R⊕ · 0.19 R♃ |
| Mass | 5.18 M⊕ · 0.0163 M♃ (estimated from the radius) |
| Density | 2.95 g/cm³ |
| Equilibrium temperature | 485 K (212 °C) |
| Stellar flux received | 26.2 × Earth |
| Discovery method | Transit |
| Discovery year | 2016 |
| Discovered by | Kepler |
Habitable zone
Inside the inner edge of the habitable zone: it receives 26.2 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 3.9° across: 7.3 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 16.16. Visible from the whole Northern Hemisphere and south to latitude 45° S. North of latitude 45° 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 the year 240. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 32 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.