 Carbon planet: a terrestrial planet composed primarily of carbon, rather than silicon Chthonian planet: A hot Jupiter whose outer layers have been completely stripped off by its parent star Coreless planet: A terrestrial planet that has no metallic core  Helium planet: a gas giant planet formed around a white dwarf star that is composed mainly of helium instead of hydrogen Iron planet, a planet like Mercury that consists mainly of an iron core with little mantle Ocean planet: A planet whose surface is covered entirely by deep oceans Ploonet: A planet that was originally a moon but has become gravitationally detached. Similarly, Pluto was once thought to be an escaped satellite of Neptune.  Trojan planet: A planet that orbits with a star instead of around it
Blanet: A planet in orbit around a black hole. Carbon planet: a terrestrial planet composed primarily of carbon, rather than silicon Chthonian planet: A hot Jupiter whose outer layers have been completely stripped off by its parent star Coreless planet: A terrestrial planet that has no metallic core Desert planet: A terrestrial planet with little to no water Eyeball planet: A terrestrial planet covered in ice save for a small, eye-like central region Helium planet: a gas giant planet formed around a white dwarf star that is composed mainly of helium instead of hydrogen Iron planet, a planet like Mercury that consists mainly of an iron core with little mantle Ocean planet: A planet whose surface is covered entirely by deep oceans Ploonet: A planet that was originally a moon but has become gravitationally detached. Similarly, Pluto was once thought to be an escaped satellite of Neptune. Superhabitable planet: a terrestrial planet more habitable than Earth Trojan planet: A planet that orbits with a star instead of around it
A
Blanet: A planet in orbit around a black hole.
A
Desert planet: A terrestrial planet with little to no water Eyeball planet: A terrestrial planet covered in ice save for a small, eye-like central region
A
Superhabitable planet: a terrestrial planet more habitable than Earth