Exoplanet · gas giant
HD 112640 b
HD 112640 b is a gas giant orbiting the star HD 112640. Its year lasts 613 Earth days. It was discovered in 2020 by the Radial Velocity method.
| Host star | HD 112640 |
|---|---|
| Distance | 1,055 light-years (323.3 pc) |
| Orbital period | 613 days |
| Orbital radius | 1.7 AU |
| Eccentricity | 0.240 |
| Radius | 12.9 R⊕ · 1.15 R♃ |
| Mass (minimum) | 1,590 M⊕ · 5 M♃ |
| Density | 4.07 g/cm³ |
| Equilibrium temperature | 960 K (687 °C) |
| Stellar flux received | 98.1 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2020 |
| Discovered by | Bohyunsan Optical Astronomical Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 98.1 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 12° across: 23 times the Sun as we see it from Earth.
In the sky
Too faint for the naked eye (magnitude 6.55); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 23° S. North of latitude 23° N it never sets. It stands highest at midnight in April, the best time to observe it.
Light's journey
The light you see tonight set out around the year 971. 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.