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See also: Cosmic Man
This article was written by User:granpa. It may or may not conform to orthodox dogma.


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Super-puff

From Wikipedia: Super-puff

A super-puff is a type of exoplanet with a mass only a few times larger than Earth’s but a radius larger than Neptune, giving it a very low mean density. They are cooler and less massive than the inflated low-density hot-Jupiters.

The most extreme examples known are the three planets around Kepler-51 which are all Jupiter-sized but with densities below 0.1 g/cm3. Another example is Kepler-87c.

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