Exoplanet · gas giant
HD 220074 b
HD 220074 b is a gas giant orbiting the star HD 220074. Its year lasts 672 Earth days. It was discovered in 2012 by the Radial Velocity method.
| Host star | HD 220074 |
|---|---|
| Distance | 1,059 light-years (324.5 pc) |
| Orbital period | 672 days |
| Orbital radius | 1.6 AU |
| Eccentricity | 0.140 |
| Radius | 12.2 R⊕ · 1.09 R♃ |
| Mass (minimum) | 5,290 M⊕ · 16.6 M♃ |
| Density | 16 g/cm³ |
| Equilibrium temperature | 1,070 K (797 °C) |
| Stellar flux received | 306 × 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 306 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 18° across: 34 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 28° S. North of latitude 28° 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 967. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 19 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.