Exoplanet · gas giant
HD 208527 b
HD 208527 b is a gas giant orbiting the star HD 208527. Its year lasts 876 Earth days. It was discovered in 2012 by the Radial Velocity method.
| Host star | HD 208527 |
|---|---|
| Distance | 1,018 light-years (312.2 pc) |
| Orbital period | 2.4 years |
| Orbital radius | 2.1 AU |
| Eccentricity | 0.080 |
| Radius | 12.5 R⊕ · 1.12 R♃ |
| Mass (minimum) | 3,150 M⊕ · 9.9 M♃ |
| Density | 8.85 g/cm³ |
| Equilibrium temperature | 960 K (687 °C) |
| Stellar flux received | 165 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2012 |
| Discovered by | Bohyunsan Optical Astronomical Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 165 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 13° across: 24 times the Sun as we see it from Earth.
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.39). Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N it never sets. It stands highest at midnight in August, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1008. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 18 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.