mini-Neptune
Sign in to savethumb|upright=1.1|Artist's conception of a mini-Neptune or "gas dwarf"
Article
6 sectionsContents
- Properties
- Examples
- See also
- References
- Further reading
- External links
thumb|upright=1.1|Artist's conception of a mini-Neptune or "gas dwarf"
A Mini-Neptune (sometimes known as a gas dwarf or transitional planet) is a planet less massive than Neptune but resembling Neptune in that it has a thick hydrogen-helium atmosphere, probably with deep layers of ice, rock or liquid oceans (made of water, ammonia, a mixture of both, or heavier volatiles).