Exoplanet · gas giant
HIP 86221 b
HIP 86221 b is a gas giant orbiting the star HIP 86221. Its year lasts 2.22 Earth days. It was discovered in 2021 by the Radial Velocity method.
| Host star | HIP 86221 |
|---|---|
| Distance | 96.2 light-years (29.5 pc) |
| Orbital period | 2.22 days |
| Orbital radius | 0.031 AU |
| Eccentricity | 0.086 |
| Radius | 14 R⊕ · 1.25 R♃ |
| Mass (minimum) | 226 M⊕ · 0.71 M♃ |
| Density | 0.452 g/cm³ |
| Discovery method | Radial Velocity |
| Discovery year | 2021 |
| Discovered by | Cerro Tololo Inter-American Observatory |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.25. Visible from the whole Northern Hemisphere and south to latitude 62° S. North of latitude 62° N it never sets. It stands highest at midnight in June, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1930. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.