Exoplanet · gas giant
HIP 81208 C b
HIP 81208 C b is a gas giant orbiting the star HIP 81208 C. Its year lasts 104,000 Earth days. It was discovered in 2023 by the Imaging method.
| Host star | HIP 81208 C |
|---|---|
| Distance | 481.2 light-years (147.5 pc) |
| Orbital period | 285 years |
| Orbital radius | 23 AU |
| Radius | 12.3 R⊕ · 1.1 R♃ |
| Mass | 4,700 M⊕ · 14.8 M♃ |
| Density | 13.9 g/cm³ |
| Surface gravity | 31.1 × Earth |
| Equilibrium temperature | 2,050 K (1,777 °C) |
| Discovery method | Imaging |
| Discovery year | 2023 |
| Discovered by | Paranal Observatory |
In the sky
Too faint for the naked eye (magnitude 6.63); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 54° N. South of latitude 54° S it never sets. It stands highest at midnight in May, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1545. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 8.5 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.