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HD 102195 b

Coordinates: Sky map 11h 45m 42.2920s, +02° 49′ 17.340″
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HD 102195 b / Lete
Discovery
Discovered byGe et al.[1]
Discovery dateJanuary 12, 2006
Doppler spectroscopy
(Exoplanet Tracker)
Orbital characteristics
Apastron0.052 AU (7,800,000 km)
Periastron0.046 AU (6,900,000 km)
0.049 AU (7,300,000 km)
Eccentricity0.06 (± 0.03)
4.115 (± 0.001) d
0.01127 y
130
2453731.7 (± 0.5)
109.9 (± 10)
Semi-amplitude63.4 (± 2.0)
StarHD 102195

HD 102195 b (also called ET-1, and formally named Lete)is an extrasolar planet orbiting the star HD 102195 in the constellation of Virgo, discovered in January 2006. It is the first planet discovered by the Exoplanet Tracker project, using a dispersed fixed-delay interferometer. It was discovered at the Kitt Peak National Observatory. The planet is an example of a hot Jupiter, and is likely to be a gas giant based on its mass.[1]

The planet HD 102195 b is named Lete. The name was selected in the NameExoWorlds campaign by Italy, during the 100th anniversary of the IAU. Lete is the oblivion river made of fog from Greek Mythology in the Italian narrative poem on the afterlife Divina Commedia.[2][3]

References

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  1. ^ a b Ge, Jian; et al. (2006). "The First Extrasolar Planet Discovered with a New-Generation High-Throughput Doppler Instrument". The Astrophysical Journal. 648 (1): 683–695. arXiv:astro-ph/0605247. Bibcode:2006ApJ...648..683G. doi:10.1086/505699. S2CID 13879217.
  2. ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
  3. ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
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