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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
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,
Discovery method Gravitational microlensing
Discovery status Published
Other designations
EWS 2005-BUL-169Lb, EWS 2005-BLG-169Lb
Database references
Extrasolar Planets
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[edit]

How a star can magnify and brighten the light of a background star when it passes in front of the distant star.[2]


  1. ^ 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. arXiv:astro-ph/0603276. Bibcode:2006ApJ...644L..37G. doi:10.1086/505421. 
  2. ^ "Identifying Planets". Retrieved 3 August 2015. 

External links[edit]

Coordinates: Sky map 18h 06m 05s, −30° 43′ 57″