Jokian

Jokian refers to a theoretical exoplanet orbiting the star GJ 1214. This celestial body is primarily known for its potential to be a "water world," meaning a significant portion of its mass could be composed of water. Jokian is located approximately 48 light-years away from Earth in the constellation Ophiuchus.

The exoplanet was discovered in 2009 by astronomers using the transit method, observing the slight dimming of its host star as Jokian passed in front of it. GJ 1214b orbits very close to its star, completing a full orbit in just 1.6 Earth days. This proximity results in extremely high surface temperatures, making liquid water on its surface unlikely in the way we understand it on Earth.

Initial observations suggested that Jokian might have a thick atmosphere rich in water vapor. However, subsequent studies, particularly those using the James Webb Space Telescope, have indicated that the planet's atmosphere may be composed of heavier molecules, potentially a hydrogen-dominated atmosphere with clouds. The exact composition and nature of Jokian remain subjects of ongoing scientific research and debate. Understanding Jokian is crucial for planetary scientists studying the diversity of exoplanets and the conditions under which different planetary types can form and evolve.