OGLE-2005-BLG-169Lb is an extrasolar planet located approximately 2,700 parsecs (8,800 light-years) away in the constellation of Sagittarius, orbiting the star OGLE-2005-BLG-169L. This planet was discovered by the OGLE project using the gravitational microlensing method. Based on a most likely mass for the host star of 0.49 solar mass (M☉), the planet has a mass of 13 times that of Earth (ME). Its mass and estimated temperature are close to those of Uranus. It is speculated that this planet may either be an ice giant like Uranus, or a "naked super-Earth" with a solid icy or rocky surface.[2]
| Discovery | |
|---|---|
| Discovered by | MicroFUN, PLANET/RoboNet, OGLE |
| Discovery date | 10 March 2006 |
| Gravitational microlensing | |
| Orbital characteristics | |
| Star | OGLE-2005-BLG-169L |
| Physical characteristics | |
| Mass | 13.2±1.3 ME[1] |
| Temperature | ~70 K |
See also
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References
edit- ^ Batista, V.; et al. (July 30, 2015). "CONFIRMATION OF THE OGLE-2005-BLG-169 PLANET SIGNATURE AND ITS CHARACTERISTICS WITH LENS–SOURCE PROPER MOTION DETECTION". The Astrophysical Journal. 808 (2): 170. arXiv:1507.08914. Bibcode:2015ApJ...808..170B. doi:10.1088/0004-637X/808/2/170. S2CID 119212954.
- ^ Gould, A.; Udalski, A.; et al. (May 24, 2006). "Microlens OGLE-2005-BLG-169 Implies That Cool Neptune-like Planets Are Common". The Astrophysical Journal. 644 (1): L37. arXiv:astro-ph/0603276. Bibcode:2006ApJ...644L..37G. doi:10.1086/505421. S2CID 14270439.
- ^ "Identifying Planets". Retrieved 3 August 2015.
External links
edit- "OGLE-05-169L". Exoplanets. Archived from the original on 2010-03-18. Retrieved 2008-08-22.
- "Newfound Ice World Alters Perceptions of Planetary Systems". SPACE.com. 13 March 2006. Retrieved 2008-08-22.
- "MICROLENSING EVENT OGLE-2005-blg-169". PLANET/RoboNet microlensing campaign. Archived from the original on September 30, 2007. Retrieved 2008-08-22.
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