Astronomy:OGLE-2007-BLG-368Lb

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OGLE-2007-BLG-368Lb
Discovery
Discovered bySumi et al.
Discovery siteMount John University
Observatory,
 New Zealand
Discovery dateDecember 8, 2009
Gravitational microlensing
Orbital characteristics
StarOGLE-2007-BLG-368L
Physical characteristics
Mass0.0694 ||J}}}}}}
(22.1 M)


OGLE-2007-BLG-368Lb is an extrasolar planet located approximately 19,230 light-years away in the constellation of Scorpius, orbiting the star OGLE-2007-BLG-368L. This planet was detected on December 8, 2009 by the gravitational microlensing by Sumi. It has mass 6.94% of Jupiter (i.e. 22 times that of Earth) and is located 3.3 AU from the star when observed. Based on those properties it would classify as a Cold Neptune. It is the second Cold Neptune to be observed, the first being OGLE-2005-BLG-169Lb.[1] This planet is most likely be similar to Uranus and Neptune in the Solar System in terms of atmospheric and internal properties.

References

  1. Sumi, T. et al. (2010). "A Cold Neptune-Mass Planet OGLE-2007-BLG-368Lb: Cold Neptunes Are Common". The Astrophysical Journal 710 (2): 1641–1653. doi:10.1088/0004-637X/710/2/1641. Bibcode2010ApJ...710.1641S. 

Coordinates: Sky map 18h 09m 42s, −29° 13′ 27″