Exoplanet · super-Earth
LP 890-9 c
LP 890-9 c is a super-Earth orbiting the star LP 890-9. Its year lasts 8.46 Earth days. It was discovered in 2022 by the Transit method.
| Host star | LP 890-9 |
|---|---|
| Distance | 105.8 light-years (32.4 pc) |
| Orbital period | 8.46 days |
| Orbital radius | 0.0398 AU |
| Radius | 1.37 R⊕ · 0.122 R♃ |
| Mass | 25.3 M⊕ · 0.0796 M♃ |
| Surface gravity | 13.5 × Earth |
| Equilibrium temperature | 272 K (-1 °C) |
| Stellar flux received | 0.906 × Earth |
| Discovery method | Transit |
| Discovery year | 2022 |
| Discovered by | SPECULOOS Southern Observatory |
Habitable zone
Inside its star's habitable zone: it receives enough light for liquid water to exist on its surface under a suitable atmosphere.
Its star in the sky
In the planet's sky its star is a disc 2.1° across: 3.9 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 18.01. Visible from the whole Southern Hemisphere and north to latitude 62° N. South of latitude 62° S it never sets. It stands highest at midnight in November, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1920. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
Planets in the same system
- LP 890-9 b 2.73-day orbit · 1.32 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.