Exoplanets · Puffy hot Jupiter
TrES-4b
1,570 light-years · Light crosses it in 0.83 seconds
- Across
- 250,281 km
- Vs Earth
- 1.79× Jupiter
- Mass
- 156 Earths
In the app, TrES-4b is part of the Beyond pack.
About
TrES-4b is a hot Jupiter so puffed up by its star's heat that its density is lower than cork. It orbits in three and a half days and is probably losing its atmosphere into space.
Almost twice Jupiter's size but lighter — about as dense as cork.
At a glance
| Distance | 1,570 light-years |
|---|---|
| Year | 3.6 days |
| Density | 0.2 g/cm³ |
| Found | 2006 |
Did you know
- It is nearly twice Jupiter's width but only half its mass.
- Its gravity is so weak that its upper atmosphere may be streaming away in a comet-like tail.
- Planets like this are hard to explain: heating alone does not seem to account for how inflated they are.