Definition of Hycean. Meaning of Hycean. Synonyms of Hycean

- A hycean planet (/ˈhaɪʃən/ HY-shən) is a hypothetical type of planet with liquid water oceans underneath a hydrogen-rich atmosphere. The term hycean is...
- retrieval to infer the compositions of exoplanets, and with coining the term "hycean planet" to describe a theorised class of planet which hosts a liquid water...
- low instellation rates. K2-18b is probably the best known "hycean planet". Other, non-hycean compositions are possible, both habitable and uninhabitable...
- Constantinou, Savvas (26 August 2021). "Habitability and Biosignatures of Hycean Worlds". The Astrophysical Journal. 918 (1): 1. arXiv:2108.10888. Bibcode:2021ApJ...
- Extraterrestrial liquid water Asteroidal water Planetary oceanography Ocean world Hycean planet List of Candidates Specific Europa Mars Moon Enceladus Physical parameters...
- habitable zones of young stars and M-type stars. Scientists have proposed Hycean planets, ocean planets with a thick atmosphere made mainly of hydrogen....
- relatively common Super-puff – inflated planets with unusually low mean density Hycean planet – a hypothetical transitional type to ocean planets with a thin,...
- molecules and non-detection of ammonia is consistent with predictions for a hycean planet. A second, non-transiting planet, K2-18c, was discovered in 2017...
- studies have shown them to be gaseous sub-Neptunes rather than being the Hycean planets and thus unlikely to be habitable. Kepler-1638b was thought to be...
- Catastrophically evaporating planet Coreless planet Desert planet Dwarf planet Hycean planet Ice planet Iron planet (Super-Mercury) Lava planet Ocean world Mega-Earth...