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OGLE-2007-BLG-368Lb
Extrasolar planet List of extrasolar planets
300px
Artist's conception of OGLE-2007-BLG-368Lb, as a gas giant.
Parent star

<tr> <td colspan="2">Star</td> <td>OGLE-2007-BLG-368L</td></tr><tr> <td colspan="2">Constellation</td> <td>Scorpius</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>17h 56m 25.96s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–32° 14′ 14.7″</td></tr><tr><td colspan="2">Distance</td><td>19230 ly
(5900 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K5V?</td></tr> <tr style="background-color: #A0B0FF;"><td colspan="3" align=center>Observed separation</td></tr><tr> <td>Projected separation</td> <td style="text-align: center">(d)</td> <td>3.3 ± 1.4 AU</td></tr>

Physical characteristics

<tr><td>Mass</td><td style="text-align: center">(m)</td><td>0.0694 MJ
(22.1 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>December 8, 2009</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Sumi et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Gravitational microlensing</td></tr><tr> <td colspan="2">Discovery site</td> <td>Mount John University
Observatory
,
23x15px New Zealand</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr> <tr style="background-color: #A0B0FF;"><td align=center colspan=3>Database references</td></tr><tr valign=baseline><td colspan=2>Extrasolar Planets
Encyclopaedia
</td><td>data</td></tr><tr><td colspan=2>SIMBAD</td><td>data</td></tr>

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.

ReferencesEdit

  1. (2010). A Cold Neptune-Mass Planet OGLE-2007-BLG-368Lb: Cold Neptunes Are Common. The Astrophysical Journal 710 (2): 1641–1653.

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


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