SWEEPS-11
SWEEPS-11 is an extrasolar planet orbiting the star 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.[1] 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 | Sahu et al. |
| 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 | |
Mean radius | 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. 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.
References
- "HEC: Top 10 Exoplanets - Planetary Habitability Laboratory @ UPR Arecibo". phl.upr.edu. Retrieved 16 July 2018.
- Sahu; et al. (2006). "Transiting extrasolar planetary candidates in the Galactic bulge". Nature. 443 (7111): 534–540. arXiv:astro-ph/0610098. Bibcode:2006Natur.443..534S. doi:10.1038/nature05158. PMID 17024085. (web Preprint)
External links
- The Extrasolar Planets Encyclopaedia: Notes for planet SWEEPS-11
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