Exoplanet · gas giant
gam Lib b
gam Lib b is a gas giant orbiting the star Zubenelhakrabi. Its year lasts 415 Earth days. It was discovered in 2018 by the Radial Velocity method.
| Host star | Zubenelhakrabi |
|---|---|
| Distance | 154.6 light-years (47.4 pc) |
| Orbital period | 415 days |
| Orbital radius | 1.32 AU |
| Eccentricity | 0.160 |
| Radius | 13.7 R⊕ · 1.22 R♃ |
| Mass (minimum) | 358 M⊕ · 1.13 M♃ |
| Density | 0.765 g/cm³ |
| Equilibrium temperature | 721 K (448 °C) |
| Stellar flux received | 45.4 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2018 |
| Discovered by | Okayama Astrophysical Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 45.4 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 5° across: 9.4 times the Sun as we see it from Earth.
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.91). Visible from the whole Southern Hemisphere and north to latitude 75° N. South of latitude 75° S it never sets. It stands highest at midnight in May, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1871. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.7 million years.
Planets in the same system
- gam Lib c 966-day orbit · 12.8 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.