OGLE-2005-BLG-169Lb
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | OGLE-2005-BLG-169L | |
| Constellation | Sagittarius | |
| Right ascension | (α) | 18h 06m 05s |
| Declination | (δ) | –30° 43′ 57″ |
| Distance | 8,800 ly (2,700 pc) | |
| Spectral type | M? | |
| Observed separation | ||
| Projected separation | (d) | 2.7 AU |
| Source-lens closest approach |
(t0) | 2,453,491.88 JD |
| Angle of source motion | (α) | 117.0° |
| Physical characteristics | ||
| Mass | (m) | 13 M⊕ |
| Temperature | (T) | ~70 |
| Discovery information | ||
| Discovery date | 10 March 2006 | |
| Discoverer(s) | MicroFUN, PLANET/RoboNet, OGLE | |
| Discovery method | Gravitational microlensing | |
| Discovery status | Published | |
| Other designations | ||
| EWS 2005-BUL-169Lb, EWS 2005-BLG-169Lb | ||
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
OGLE-2005-BLG-169Lb is an extrasolar planet located approximately 2700 parsecs 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 (M⊕). 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.[1]
See also
How a star can magnify and brighten the light of a background star when it passes in front of the distant star.[2]
References
- ↑ Gould, A.; et al. (2006). "Microlens OGLE-2005-BLG-169 Implies That Cool Neptune-like Planets Are Common". The Astrophysical Journal Letters. 644 (1): L37–L40. Bibcode:2006ApJ...644L..37G. arXiv:astro-ph/0603276
. doi:10.1086/505421. - ↑ "Identifying Planets". Retrieved 3 August 2015.
External links
- "OGLE-05-169L". Exoplanets. Retrieved 2008-08-22.
- "Newfound Ice World Alters Perceptions of Planetary Systems". SPACE.com. 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.
Coordinates: 
18h 06m 05s, −30° 43′ 57″
This article is issued from
Wikipedia.
The text is licensed under Creative Commons - Attribution - Sharealike.
Additional terms may apply for the media files.