KOI-456.04
Characteristics
The star Kepler-160 is rather old, having no detectable circumstellar disk. The star's metallicity is unknown, with conflicting values of either 40% or 160% of solar metallicity reported.
Despite having at least one potentially Earth-like planet (KOI-456.04), the Breakthrough Listen search for extraterrestrial intelligence found no potential technosignatures.
Planetary system
The two planetary candidates in the Kepler-160 system were discovered in 2010, published in early 2011 and confirmed in 2014. The planets Kepler-160b and Kepler-160c are not in orbital resonance despite their orbital periods ratio being close to 1:3.
An additional rocky transiting planet candidate KOI-456.04, located in the habitable zone, was detected in 2020, 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. 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.
Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | — | 0.05511 −0.0037 |
4.309397 −0.000012 |
0 | — | 1.715 −0.047 R🜨 |
c | — | 0.1192 −0.008 |
13.699429±0.000018 | 0 | — | 3.76 −0.09 R🜨 |
d | 1—100 M🜨 | — | 7—50 | — | — | — |
e (unconfirmed) | — | 1.089 −0.073 |
378.417 −0.025 |
0 | — | 1.91 −0.14 R🜨 |
See also
References
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