Circumbinary	An exoplanet that orbits two stars.
Double Planet (Binary Planet)	Two planetary-mass objects orbiting each other.
Dwarf Planet	A planetary-mass object that orbits its star, which does not represent an overwhelming proportion of the mass in its orbital zone and does not control the orbital parameters of those objects (antonym: major planet).
Eccentric Jupiter	A gas giant that orbits its star in an eccentric orbit.
Exoplanet	A planet that does not orbit the Sun, but a different star, a stellar remnant, or a brown dwarf.
Extragalatic Planet	An exoplanet outside the Milky Way.
Goldilocks Planet	A Goldilocks planet is a planet that falls within a star's habitable zone. The name comes from the children's fairy tale of Goldilocks and the Three Bears, in which a little girl chooses from sets of three items, ignoring the ones that are too extreme (large or small, hot or cold, etc.), and settling on the one in the middle, which is "just right".
Hot Jupiter	Hot Jupiters are a class of extrasolar planets whose characteristics are similar to Jupiter, but that have high surface temperatures because they orbit very close-between approximately 0.015 and 0.5 astronomical units (2.2x106 and 74.8x106 km)-to their parent stars, whereas Jupiter orbits its parent star (the Sun) at 5.2 astronomical units (780x106 km), causing low surface temperatures.
Hot Neptune	A hot Neptune is an extrasolar planet in an orbit close to its star (normally less than one astronomical unit away), with a mass similar to that of Uranus or Neptune.
Inferior Planet	The planets whose orbits lie within the orbit of Earth.
Inner Planet	The inner planets are those planets in the Solar System that have orbits smaller than the asteroid belt.
Major Planet	Planetary-mass objects which orbit stars that dominate their orbital zone and comprise the vast majority of the mass in that zone (antonym: dwarf planet).
Outer Planet	The outer planets are those planets in the Solar System beyond the asteroid belt, and hence refers to the gas giants.
Pulsar Planet	Pulsar planets are planets that are found orbiting pulsars, or rapidly rotating neutron stars.
Rouge Planet (Interstellar planet)	A rogue planet is a planetary-mass object that orbits the galaxy directly.
Superior Planet	The planets whose orbits lie outside the orbit of Earth.
Trojan Planet	The discovery of a pair of co-orbital exoplanets has been reported but later retracted.One possibility for the habitable zone is a trojan planet of a gas giant close to its star.