mini-Neptune
Sign in to saveAlso known as transitional planet
thumb|upright=1.1|Artist's conception of a mini-Neptune or "gas dwarf"
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- purl.obolibrary.org/obo/ENVO_01001128
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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).
Connections
list of planet types
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outer space
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gas giant
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cosmic dust
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hot Jupiter
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planetary habitability
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ocean planet
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hot Neptune
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list of extrasolar planet extremes
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list of extrasolar planets
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water
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planet
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Neptune
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hydrogen
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helium
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dwarf planet
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ammonia
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Kuiper Belt
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asteroid belt
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exoplanet
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