Exoplanet · Earth-sized rocky planet
GJ 1132 b
GJ 1132 b is a Earth-sized rocky planet orbiting the star GJ 1132. Its year lasts 1.63 Earth days. It was discovered in 2015 by the Transit method.
| Host star | GJ 1132 |
|---|---|
| Distance | 41.1 light-years (12.6 pc) |
| Orbital period | 39.1 hours |
| Orbital radius | 0.0157 AU |
| Eccentricity | 0.012 |
| Radius | 1.19 R⊕ · 0.106 R♃ |
| Mass | 1.84 M⊕ · 0.00578 M♃ |
| Density | 5.97 g/cm³ |
| Surface gravity | 1.29 × Earth |
| Equilibrium temperature | 584 K (311 °C) |
| Stellar flux received | 19.3 × Earth |
| Discovery method | Transit |
| Discovery year | 2015 |
| Discovered by | Cerro Tololo Inter-American Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 19.3 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 7.5° across: 14 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 13.50. Visible from the whole Southern Hemisphere and north to latitude 43° N. South of latitude 43° S it never sets. It stands highest at midnight in February, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1985. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 730 thousand years.
Planets in the same system
- GJ 1132 c 8.93-day orbit · 1.52 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.