SWEEPS-04
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| File:Exoplanet Comparison SWEEPS-04 b.png Size comparison of SWEEPS-04 with Jupiter. | |
| Discovery | |
|---|---|
| Discovered by | Sahu et al.[1] |
| Discovery date | October 4, 2006 |
| Transit | |
| Orbital characteristics | |
| 0.055 AU (8,200,000 km) | |
| 4.2 d | |
| Inclination | >87 |
| Star | SWEEPS J175853.92−291120.6 |
| Physical characteristics | |
| 0.81±0.1 RJ | |
| Mass | <3.8 MJ |
SWEEPS-04 is an extrasolar planet orbiting the star SWEEPS J175853.92−291120.6 in the constellation Sagittarius approximately 27,710 light years away (based on a distance modulus of 14.1) from the Solar System, making it (along with SWEEPS-11) the most distant exoplanet(s) known.[2] This planet was found in 2006 by the Sagittarius Window Eclipsing Extrasolar Planet Search (SWEEPS) program that uses the transit method.
The upper limit on the planet's mass is 3.8 times the mass of Jupiter. The best fit radius is 0.81 times that of Jupiter, but the uncertainty in this value is large, around 12%. It orbits at an average distance of 8,200,000 km (0.055 AU) from the parent star, taking 4.2 days to revolve around it.
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HST SWEEPS-4 2006
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Radial Velocities of SWEEPS-04 (UVES-VLT)
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Artist's impression of a transiting Jupiter-mass exoplanet SWEEPS J175853.92-291120.6 b
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See also
[edit | edit source]- Sagittarius Window Eclipsing Extrasolar Planet Search or SWEEPS
- SWEEPS-10
- SWEEPS-11
- List of extrasolar planets
References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). (web Preprint)
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
[edit | edit source]- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
