Exoplanet · gas giant
SWEEPS-11 b
SWEEPS-11 b is a gas giant orbiting the star SWEEPS-11. Its year lasts 1.8 Earth days. It was discovered in 2006 by the Transit method.
| Host star | SWEEPS-11 |
|---|---|
| Distance | 27,700 light-years (8,500 pc) |
| Orbital period | 43.1 hours |
| Orbital radius | 0.03 AU |
| Radius | 12.7 R⊕ · 1.13 R♃ |
| Mass | 3,080 M⊕ · 9.7 M♃ |
| Density | 8.34 g/cm³ |
| Surface gravity | 19.2 × Earth |
| Discovery method | Transit |
| Discovery year | 2006 |
| Discovered by | Hubble Space Telescope |
Its star in the sky
In the planet's sky its star is a disc 25° across: 48 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 19.83. Visible from the whole Southern Hemisphere and north to latitude 61° N. South of latitude 61° S 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 28 thousand years ago. At that time Homo sapiens was spreading out of Africa; there was no farming yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 492 million years.
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.