Exoplanet · gas giant
DENIS-P J082303.1-491201 b
DENIS-P J082303.1-491201 b is a gas giant orbiting the star DENIS-P J0823031-491201. Its year lasts 246 Earth days. It was discovered in 2013 by the Astrometry method.
| Host star | DENIS-P J0823031-491201 |
|---|---|
| Distance | 67.7 light-years (20.8 pc) |
| Orbital period | 246 days |
| Orbital radius | 0.36 AU |
| Eccentricity | 0.345 |
| Radius | 11.9 R⊕ · 1.06 R♃ |
| Mass | 9,060 M⊕ · 28.5 M♃ |
| Density | 29.5 g/cm³ |
| Surface gravity | 64 × Earth |
| Discovery method | Astrometry |
| Discovery year | 2013 |
| Discovered by | Paranal Observatory |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.30. Visible from the whole Southern Hemisphere and north to latitude 41° N. South of latitude 41° S it never sets. It stands highest at midnight in January, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1958. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.