G99234

G99234 is a newly discovered exoplanet located approximately 120 light-years away from Earth in the constellation of Cygnus. It orbits a star designated G99234A, which is a G-type main-sequence star similar to our Sun. The planet, designated G99234 b, is a super-Earth with a mass about 5.2 times that of Earth and a radius approximately 2.1 times larger. It completes one orbit around its host star in about 14 Earth days, placing it within the habitable zone where liquid water could potentially exist on the surface.

The discovery of G99234 b was made using the transit method, where the slight dimming of the host star's light as the planet passes in front of it is observed. This method has revealed that G99234 b has a dense atmosphere rich in nitrogen and oxygen, similar to Earth's. However, the planet's high density suggests a composition that may include a significant amount of water, making it a potential candidate for further study in the search for extraterrestrial life.

G99234 b's proximity to Earth and its unique characteristics make it an attractive target for future astronomical observations. Scientists are particularly interested in studying its atmosphere and surface conditions to better understand the potential habitability of super-Earths and the diversity of planetary systems beyond our own.