SWEEPS-11 b
SWEEPS-11 b is a hot Jupiter orbiting SWEEPS-11 in the constellation Sagittarius. It lies about 27,723 light-years from Earth and was discovered in 2006 using the transit method.
How Big Is SWEEPS-11 b?
SWEEPS-11 b has a radius of 12.67 times that of Earth, or 1.13 times the radius of Jupiter. Its mass is 3,083 times that of Earth.
Is SWEEPS-11 b in the Habitable Zone?
The position of SWEEPS-11 b relative to the habitable zone of SWEEPS-11 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on SWEEPS-11 b — one full orbit around SWEEPS-11 — lasts just 43.1 hours, shorter than Mercury's 88-day year. It orbits at an average distance of 0.030 AU — closer to its star than Mercury is to the Sun.
How Was SWEEPS-11 b Discovered?
SWEEPS-11 b was discovered in 2006 using the transit method, with observations from Hubble Space Telescope.
The transit method watches a star for the tiny, regular dip in brightness that occurs when a planet crosses in front of it. The depth and timing of these dips reveal the planet's size and orbital period.
How Far Away Is SWEEPS-11 b?
SWEEPS-11 b is 27,723.3 light-years (8,500.0 parsecs) from Earth. Light arriving here tonight left the planet about 27,723 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 487,930,080 years to make the journey.
The Host Star: SWEEPS-11
SWEEPS-11
- Mass
- 1.10 M☉
- Radius
- 1.45 R☉
Planetary System
SWEEPS-11 b is the only planet known to orbit SWEEPS-11 so far.
SWEEPS-11 b — Complete Data
| Radius | 12.666 Earth radii (1.130 Jupiter radii) |
|---|---|
| Mass | 3,082.82 Earth masses (9.700 Jupiter masses) |
| Orbital period | 1.80 days |
| Orbital distance | 0.030 AU |
| Distance from Earth | 27,723.3 light-years (8,500.0 parsecs) |
| Constellation | Sagittarius |
| Discovery method | Transit |
| Discovery facility | Hubble Space Telescope |
| Discovery year | 2006 |
Data: NASA Exoplanet Archive, last updated 2014-05-14. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About SWEEPS-11 b
Is SWEEPS-11 b habitable?
SWEEPS-11 b is not known to orbit within the habitable zone of SWEEPS-11, and as a hot Jupiter it is an unlikely candidate for life as we know it.
How far away is SWEEPS-11 b?
SWEEPS-11 b is about 27,723 light-years from Earth in the constellation Sagittarius. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 487,930,080 years to get there.
How big is SWEEPS-11 b compared to Earth?
SWEEPS-11 b has 12.67 times the radius of Earth and about 3,083 times its mass.
How long is a year on SWEEPS-11 b?
One orbit around SWEEPS-11 takes 1.8 Earth days — short enough that 203 of its years would fit into one Earth year.
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