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HD 40307 e
Extrasolar planet in the constellation Pictor / From Wikipedia, the free encyclopedia
HD 40307 e is an extrasolar planet candidate suspected to be orbiting the star HD 40307. It is located 42 light-years away in the direction of the southern constellation Pictor. The planet was discovered by the radial velocity method, using the European Southern Observatory's HARPS apparatus[1][2][3] by a team of astronomers led by Mikko Tuomi at the University of Hertfordshire and Guillem Anglada-Escude of the University of Göttingen, Germany.[4]
Quick Facts Discovery, Discovered by ...
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Discovery | |
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Discovered by | Mikko Tuomi et al. |
Discovery site | La Silla Observatory, Chile |
Discovery date | October 28, 2012 |
radial velocity, using HARPS | |
Orbital characteristics | |
0.1886 [0.1782, 0.1969] AU | |
Eccentricity | 0.06 [0, 0.18][1] |
34.62 [34.42, 34.83][1] d | |
Semi-amplitude | 0.84 [0.53, 1.16][1] |
Star | HD 40307 |
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The existence of the planet was disputed in 2015, as more Doppler spectroscopy data has become available.[5]