Tau Ceti f
Tau Ceti f, or 52 Ceti f, is an exoplanet super-Earth orbiting Tau Ceti that was discovered in 2012 by statistical analyses of the star's variations in radial velocity, based on data obtained using HIRES, AAPS, and HARPS.[1][2] It is of interest because its orbit places it in Tau Ceti's extended habitable zone.[3] However, a 2015 study implies that it has been in the temperate zone for less than one billion years, so there may not be a detectable biosignature.[4]
Few properties of the planet are known other than its orbit and mass. It orbits Tau Ceti at a distance of 1.35 AU (near Mars's orbit in the Solar System) with an orbital period of 642 days and has a minimum mass of 3.93 Earth masses.[5]
As of October 2020, Tau Cet f is considered the most potentially habitable exoplanet orbiting a Sun-like star.[6]
- ^ Cite error: The named reference
Tuomi2012was invoked but never defined (see the help page). - ^ "Four Exoplanets Detected around Nearby Star Tau Ceti | Astronomy | Sci-News.com". Breaking Science News | Sci-News.com. Retrieved 2020-10-07.
- ^ "Two Nearby Habitable Worlds? - Planetary Habitability Laboratory @ UPR Arecibo". Phl.upr.edu. Retrieved 2014-01-08.
- ^ Wall, Mike (April 24, 2015). "Nearby Alien Planets Not So Life-Friendly After All". Retrieved 2018-02-05.
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Feng2017was invoked but never defined (see the help page). - ^ "The Habitable Exoplanets Catalog - Planetary Habitability Laboratory @ UPR Arecibo". phl.upr.edu. Retrieved 2020-10-07.