Exoplanet · gas giant
HU Aqr AB c
HU Aqr AB c is a gas giant orbiting the star HU Aqr. Its year lasts 4,370 Earth days. It was discovered in 2011 by the Eclipse Timing Variations method.
| Host star | HU Aqr |
|---|---|
| Distance | 626.9 light-years (192.2 pc) |
| Orbital period | 12 years |
| Orbital radius | 5.4 AU |
| Eccentricity | 0.510 |
| Radius | 12.9 R⊕ · 1.15 R♃ |
| Mass | 1,430 M⊕ · 4.5 M♃ |
| Density | 3.66 g/cm³ |
| Discovery method | Eclipse Timing Variations |
| Discovery year | 2011 |
| Discovered by | Yunnan Astronomical Observatory |
In the sky
A telescope is needed to see it: its apparent magnitude is 16.18. Visible from the whole Southern Hemisphere and north to latitude 85° N. It stands highest at midnight in August, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1399. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
Planets in the same system
- HU Aqr AB b 2,390-day orbit · 12.8 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.