TOI-178c

{{Short description|Exoplanet in the constellation Sculptor}}

{{Infobox planet

|name=TOI-178c

|discovery_method=transit

|discovered=2021

|semimajor=0.037 AU

|mass=0.01501 {{Jupiter mass|link=y}}

|mean_orbit_radius=3.23845 days

|eccentricity=0

|single_temperature=873.0 Kelvin

|alt_names=TYC 6991-475-1 c

|star= TOI-178

}}

TOI-178c is a potentially rocky planet that orbits the K-type star TOI-178, 204.4783 light-years from Earth.{{Cite web|title=TYC 6991-475-1|url=http://www.exoplanetkyoto.org/exohtml/TYC_6991-475-1.html|access-date=2021-12-15|website=www.exoplanetkyoto.org}} TOI-178c's radius is 1.669 x that of Earth, and its mass is 4.77 that of Earth's, making TOI-178c a super earth. TOI-178c mass was discovered by the radial velocity method with the radius detected by the primary transit method.{{Cite web|title=The Extrasolar Planet Encyclopaedia — TOI-178 c|url=https://exoplanet.eu/catalog/toi_178_c--6859/|work=Extrasolar Planets Encyclopaedia|access-date=2021-12-15}} The orbital radius is 0.037 AU, with an eccentricity of 0.0. A year on TOI-178c is 3.2 days long. TOI-178c was discovered by using the transit method in 2021. TOI-178b, TOI-178d, TOI-178e, TOI-178f, TOI-178g are all in the same system as TOI-178c.{{Cite web|title=Exoplanet-catalog|url=https://exoplanets.nasa.gov/exoplanet-catalog/7817/toi-178-c/|access-date=2021-12-15|website=Exoplanet Exploration: Planets Beyond our Solar System}} The temperature on TOI-178c is 873 Kelvin; the hottest point longitude unknown.