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Kepler-160
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Kepler-160 is a main-sequence star approximately the width of our Galactic arm away in the constellation Lyra, first studied in detail by the Kepler Mission, a NASA-led operation tasked with discovering terrestrial planets. The star, which is very similar to the Sun in mass and radius,[4][3] has three confirmed planets and one unconfirmed planet orbiting it.
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Characteristics
The star Kepler-160 is rather old, having no detectable circumstellar disk.[6] The star's metallicity is unknown, with conflicting values of either 40% or 160% of solar metallicity reported.[7][8]
Despite having at least one potentially Earth-like planet (KOI-456.04), the Breakthrough Listen search for extraterrestrial intelligence found no potential technosignatures.[9]
Planetary system
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The two planetary candidates in the Kepler-160 system were discovered in 2010, published in early 2011[10] and confirmed in 2014.[11] The planets Kepler-160b and Kepler-160c are not in orbital resonance despite their orbital periods ratio being close to 1:3.[12]
An additional rocky transiting planet candidate KOI-456.04, located in the habitable zone, was detected in 2020,[3] and more non-transiting planets are suspected due to residuals in the solution for the transit timing variations. From what researchers can tell, KOI-456.04 looks to be less than twice the size of Earth and is apparently orbiting Kepler-160 at about the same distance from Earth to the sun (one complete orbit is 378 days). Perhaps most important, it receives about 93% as much light as Earth gets from the sun.[13] Nontransiting planet candidate Kepler-160d has a mass between about 1 and 100 Earth masses and an orbital period between about 7 and 50 d.[3]
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References
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