Midplanet

Midplanet, also known as hyper-Earth, hypo-Jupiter, or neptunian planet, is a classification of with mass ranging from 10 to 31.8 es or 0.0315 to 0.1 es. Hence it is the fourth most massive mass class of planet, super-Earth is rated M-Class IV and has the symbol N.

Characteristics
Many midplanets have or liquid interiors with thick gaseous envelope  with large rocky core. s with oceans often thousands of miles deep would be a common property of close-orbiting midplanets. Even some lower-mass midplanets have rocky surface with thick blanket of - gas, if they have enough rocky material.

Habitability
The habitability for life on midplanets depend on if this planet is gaseous, oceanous or rocky. If it is a gaseous planet, then it is unlikely to have life unless if aerial life somehow form and evolve. If it is an, then life can easily form and evolve in water or other liquid. If its rocky, its hard to form and evolve since the gravity is so strong.

Abundance
There are an estimated 123 billion midplanets in alone, making it the fourth most abundant mass class of planet after mid-Earth, sub-Earth, and super-Earth. This corresponds that 150‰ of all 820 billion planets in our galaxy are midplanets.

Known midplanets
Over 500 known midplanets have been discovered as of 2015. (Sol h, P7, 14.5 M$⊕$) and (Sol i, P8, 17.1 M$⊕$) are obviously the first midplanets discovered since these planet are located in our. In 2004, the first extrasolar midplanet discovered was (Peucetis), roughly two and a quarter centuries after the first midplanet was discovered (Uranus in 1781). Other notable examples of midplanets are  (Nemea), also among the first, all three planets in the  system (Lachesis, Atropos, and Clotho), and the   (Mors).