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Exoplanetary Scratchpad

[SysBP Img]

Binary star 25,000 ly away with the first exo-Uranuses discovered (these planets are too far and have too long a period for transiting and radial velocity methods, are too dim for direct detection, and often the host star is not detected during microlensing). This planet b is about the same distance from the primary star (2/3 MS) as Uranus is (19 AU) from the Sun, is four times as massive, possibly has a similar composition. The companion star (1/6 MS) located three times as far might be responsible for its far out orbit, similar to Jupiter and Saturn being responsible for Uranus's. All three objects were fortunate to be detected with microlensing events. Other "free floating" planets may actually be Uranus analogs whose stars were not detected.

OGLE-2008-BLG-092L System Web Pages[]

OGLE-2008-BLG-092L System In the News[]

Exo-Uranus Discovered (2014)[]

See also Kepler-421 System

See Also[]