SWEEPS-04
| Exoplanet | List of exoplanets | |
|---|---|---|
 |
||
| Parent star | ||
| Star | SWEEPS J175853.92−291120.6 | |
| Constellation | Sagittarius | |
| Right ascension | (α) | 17h 58m 53.92s |
| Declination | (δ) | −29° 11′ 20.6″ |
| Apparent magnitude | (mV) | 18.8 |
| Distance | 22000 ly (6600 pc) |
|
| Orbital elements | ||
| Semi-major axis | (a) | 0.055 AU |
| Orbital period | (P) | 4.2 d |
| Inclination | (i) | >87° |
| Physical characteristics | ||
| Mass | (m) | <3.8 MJ |
| Radius | (r) | 0.81±0.1 RJ |
| Discovery information | ||
| Discovery date | October 4, 2006 | |
| Discoverer(s) | Sahu et al. | |
| Discovery method | Transit | |
| Discovery status | Confirmed | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
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. 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.
HST SWEEPS-4 2006
Radial Velocities of SWEEPS-04 (UVES-VLT)
Artist's impression of a transiting Jupiter-mass exoplanet SWEEPS J175853.92-291120.6 b
Coordinates: 
17h 58m 54s, −29° 11′ 21″
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