HD 40307 e
| Discovery | |
|---|---|
| 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] |
| 34.62 [34.42, 34.83] d | |
| Semi-amplitude | 0.84 [0.53, 1.16] |
| Star | HD 40307 |
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 by a team of astronomers led by Mikko Tuomi at the University of Hertfordshire and Guillem Anglada-Escude of the University of Göttingen, Germany.
The existence of the planet was disputed in 2015, as more Doppler spectroscopy data has become available.