# Kepler-296b

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S-type exoplanet in Kepler-296

Not to be confused with [K2-296b](/source/K2-296b).

Kepler-296b Discovery[1] Discovery date 2014 Detection method Transit[2] Orbital characteristics[1] Semi-major axis 0.079±0.013 AU Eccentricity < 0.33[2] Orbital period (sidereal) 10.8644+0.0001 −0.0000 Physical characteristics[1] Mean radius 1.6±0.3 R🜨 (0.14+0.03 −0.02 RJ) Mass 3.22 M🜨[2]

The following plot shows the approximate sizes of the planets in this system compared to planets in the Solar System.[3]

**Kepler-296b** is an [s-type](/source/Habitability_of_binary_star_systems) exoplanet located in the binary star system [Kepler-296](/source/Kepler-296). All 5 planets in this system orbit around the primary star.

It has been classed as a hot [superterran](/source/Superterran).

It was discovered by the [Kepler space telescope](/source/Kepler_space_telescope) in 2014 using the [transit method](/source/Methods_of_detecting_exoplanets) and was originally classed as a planet candidate, but during a study[4] by members of the [NASA Ames Research Center](/source/Ames_Research_Center) on two other planets in the Kepler-296 system, [Kepler-296f](/source/Kepler-296f) and [Kepler-296e](/source/Kepler-296e), they were able to confirm that Kepler-296b is an exoplanet with "more than 99% confidence".

## Data

As with most other exoplanets, not many parameters are known about Kepler-296b. The few that are, are listed in the infobox to the right.

## References

1. ^ [***a***](#cite_ref-auto_1-0) [***b***](#cite_ref-auto_1-1) [***c***](#cite_ref-auto_1-2) ["Open Exoplanet Catalogue - Kepler-296 b"](http://www.openexoplanetcatalogue.com/planet/Kepler-296%20b/). *www.openexoplanetcatalogue.com*. Retrieved 2021-03-17.

1. ^ [***a***](#cite_ref-nasa_catalog_2-0) [***b***](#cite_ref-nasa_catalog_2-1) [***c***](#cite_ref-nasa_catalog_2-2) ["Kepler-296b"](https://exoplanets.nasa.gov/exoplanet-catalog/5661/kepler-296-b/). *EXOPLANET EXPLOARATION NASA*. NASA. Retrieved 12 June 2021.

1. **[^](#cite_ref-3)** ["Open Exoplanet Catalogue - Kepler-296 b"](http://www.openexoplanetcatalogue.com/planet/Kepler-296%20b/). *www.openexoplanetcatalogue.com*. Retrieved 2021-03-17.

1. **[^](#cite_ref-4)** ["Astronomers Catalog Planets That May Be Earthlike"](https://www.jpl.nasa.gov/news/astronomers-catalog-planets-that-may-be-earthlike). *NASA Jet Propulsion Laboratory (JPL)*. Retrieved 2021-03-17.

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