SWEEPS-4 b
SWEEPS-4 b is a hot Jupiter orbiting SWEEPS-4 in the constellation Sagittarius. It was discovered in 2006 using the transit method.
How Big Is SWEEPS-4 b?
SWEEPS-4 b has a radius of 9.08 times that of Earth, or 0.81 times the radius of Jupiter. Its mass is 1,208 times that of Earth.
Is SWEEPS-4 b in the Habitable Zone?
The position of SWEEPS-4 b relative to the habitable zone of SWEEPS-4 cannot be precisely determined from the available orbital data.
Orbit and Year Length
A year on SWEEPS-4 b — one full orbit around SWEEPS-4 — lasts 4.20 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.055 AU — closer to its star than Mercury is to the Sun.
How Was SWEEPS-4 b Discovered?
SWEEPS-4 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.
The Host Star: SWEEPS-4
SWEEPS-4
- Mass
- 1.24 M☉
- Radius
- 1.18 R☉
Planetary System
SWEEPS-4 b is the only planet known to orbit SWEEPS-4 so far.
SWEEPS-4 b — Complete Data
| Radius | 9.079 Earth radii (0.810 Jupiter radii) |
|---|---|
| Mass | 1,207.70 Earth masses (3.800 Jupiter masses) |
| Orbital period | 4.20 days |
| Orbital distance | 0.055 AU |
| 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-4 b
Is SWEEPS-4 b habitable?
SWEEPS-4 b is not known to orbit within the habitable zone of SWEEPS-4, and as a hot Jupiter it is an unlikely candidate for life as we know it.
How big is SWEEPS-4 b compared to Earth?
SWEEPS-4 b has 9.08 times the radius of Earth and about 1,208 times its mass.
How long is a year on SWEEPS-4 b?
One orbit around SWEEPS-4 takes 4.2 Earth days — short enough that 87 of its years would fit into one Earth year.
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