Exoplanet · gas giant
HD 216536 b
HD 216536 b is a gas giant orbiting the star HD 216536. Its year lasts 149 Earth days. It was discovered in 2015 by the Radial Velocity method.
| Host star | HD 216536 |
|---|---|
| Distance | 1,227 light-years (376.2 pc) |
| Orbital period | 149 days |
| Orbital radius | 0.61 AU |
| Eccentricity | 0.380 |
| Radius | 13.8 R⊕ · 1.23 R♃ |
| Mass (minimum) | 334 M⊕ · 1.05 M♃ |
| Density | 0.698 g/cm³ |
| Equilibrium temperature | 898 K (625 °C) |
| Stellar flux received | 170 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2015 |
| Discovered by | McDonald Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 170 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 8.6° across: 16 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 9.36. Visible from the whole Northern Hemisphere and south to latitude 46° S. North of latitude 46° N it never sets. It stands highest at midnight in September, the best time to observe it.
Light's journey
The light you see tonight set out around the year 799. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 22 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.