SWEEPS-11
Hot Jupiter orbiting SWEEPS J175902.67-291153.5
From Wikipedia, the free encyclopedia
SWEEPS-11 is an extrasolar planet orbiting SWEEPS J175902.67−291153.5 in the constellation Sagittarius, approximately 27,710 light years away from the Solar System (based on a distance modulus of 14.1), making it (along with SWEEPS-04) 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.
Size comparison of SWEEPS-11 with Jupiter. | |
| Discovery | |
|---|---|
| Discovered by | SWEEPS.[1] |
| Discovery date | October 4, 2006 |
| Transit | |
| Orbital characteristics | |
| 0.03 AU (4,500,000 km) | |
| 1.796 d | |
| Inclination | >84 |
| Star | SWEEPS J175902.67−291153.5 |
| Physical characteristics | |
| 1.13±0.21 RJ | |
| Mass | 9.7±5.6 MJ |
This hot Jupiter has a mass 9.7 times that of Jupiter and a radius of 1.13 times that of Jupiter, but the uncertainty in this value is large, around 21%. The planet orbits at about 1.75 times closer to the star than 51 Pegasi b is to 51 Pegasi, taking only 1.8 days or 43 hours to orbit the star. It is also the most distant planet yet discovered.
