Exoplanet · gas giant
Pr0211 b
Pr0211 b is a gas giant orbiting the star Pr0211. Its year lasts 2.15 Earth days. It was discovered in 2012 by the Radial Velocity method.
| Host star | Pr0211 |
|---|---|
| Distance | 595.9 light-years (182.7 pc) |
| Orbital period | 2.15 days |
| Orbital radius | 0.0318 AU |
| Eccentricity | 0.011 |
| Radius | 13.4 R⊕ · 1.2 R♃ |
| Mass (minimum) | 598 M⊕ · 1.88 M♃ |
| Density | 1.36 g/cm³ |
| Equilibrium temperature | 1,304 K (1,031 °C) |
| Stellar flux received | 457 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2012 |
| Discovered by | Fred Lawrence Whipple Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 457 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 14° across: 26 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 12.16. Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° N it never sets. It stands highest at midnight in January, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1430. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
Planets in the same system
- Pr0211 c 4,850-day orbit · 12.6 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.