TOI-178c is a potentially rocky
exoplanet
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...
that orbits the K-type
star
A star is an astronomical object comprising a luminous spheroid of plasma (physics), plasma held together by its gravity. The List of nearest stars and brown dwarfs, nearest star to Earth is the Sun. Many other stars are visible to the naked ...
TOI 178, 204.4783 light years from Earth. TOI-178c's radius is 1.669 x that of Earth, and its
mass
Mass is an intrinsic property of a body. It was traditionally believed to be related to the quantity of matter in a physical body, until the discovery of the atom and particle physics. It was found that different atoms and different elementar ...
is 4.77 that of Earth's, making TOI-178c a
super earth
A super-Earth is an extrasolar planet with a mass higher than Earth's, but substantially below those of the Solar System's ice giants, Uranus and Neptune, which are 14.5 and 17 times Earth's, respectively.
The term "super-Earth" refers only to t ...
. TOI 178c mass was discovered by the radial velocity method with the radius detected by the
primary transit method.
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
Any planet is an extremely faint light source compared to its parent star. For example, a star like the Sun is about a billion times as bright as the reflected light from any of the planets orbiting it. In addition to the intrinsic difficulty o ...
in 2021.
TOI-178
TOI-178 is a planetary system in the constellation Sculptor,Requête spécifique à TOI-178sur VizieR. which appears to have at least five, and possibly six, planets in a chain of Laplace resonances, which constitute one of the longest c ...
b,
TOI-178
TOI-178 is a planetary system in the constellation Sculptor,Requête spécifique à TOI-178sur VizieR. which appears to have at least five, and possibly six, planets in a chain of Laplace resonances, which constitute one of the longest c ...
d,
TOI-178
TOI-178 is a planetary system in the constellation Sculptor,Requête spécifique à TOI-178sur VizieR. which appears to have at least five, and possibly six, planets in a chain of Laplace resonances, which constitute one of the longest c ...
e,
TOI-178
TOI-178 is a planetary system in the constellation Sculptor,Requête spécifique à TOI-178sur VizieR. which appears to have at least five, and possibly six, planets in a chain of Laplace resonances, which constitute one of the longest c ...
f,
TOI-178
TOI-178 is a planetary system in the constellation Sculptor,Requête spécifique à TOI-178sur VizieR. which appears to have at least five, and possibly six, planets in a chain of Laplace resonances, which constitute one of the longest c ...
g are all in the same system as TOI-178c.
The temperature on TOI 178c is 873
Kelvin
The kelvin, symbol K, is the primary unit of temperature in the International System of Units (SI), used alongside its prefixed forms and the degree Celsius. It is named after the Belfast-born and University of Glasgow-based engineer and phys ...
; the hottest point longitude unknown.
References
Exoplanets discovered in 2021
Exoplanets discovered by TESS
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