Super-Earth

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  Gas giant

  A gas giant (sometimes also known as a jovian planet after the planet Jupiter, or giant planet) is a large planet that is not primarily composed of rock or other solid matter. There are four gas giants in the Solar System: Jupiter, Saturn, Uranus, and Neptune. Many extrasolar gas giants have been...
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  Terrestrial planet

  A terrestrial planet, telluric planet or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun. The terms are derived from Latin words for Earth (Terra and Tellus), so these planets...
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  Desert planet

  A desert planet is a single-biome planet on which the climate is mostly desert, with little or no natural precipitation. Desert planets are known to exist; Mars is often considered a prime example. Indeed, many terrestrial planets would be considered desert planets by this definition. However, the...
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  Pulsar planet

  Pulsar planets are planets that are found orbiting pulsars, or rapidly rotating neutron stars. The first such planet to be discovered was around a millisecond pulsar and was the first extrasolar planet to be confirmed as discovered. Pulsar planets are discovered through pulsar timing measurements,...
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  Hot Jupiter

  Hot Jupiters (also called roaster planets, epistellar jovians, pegasids or pegasean planets) are a class of extrasolar planet whose mass is close to or exceeds that of Jupiter (1.9×10 kg). While Jupiter orbits its parent star (the Sun) at 5.2 astronomical units (780×10^ km), the planets referred to...
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  Eccentric Jupiter

  An eccentric Jupiter is a Jovian planet that orbits its star in an eccentric orbit. Eccentric Jupiters may disqualify a planetary system from having Earth-like planets in it because a massive gas giant with an eccentric orbit may remove all Earth mass planets from the habitable zone. To date, it...
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  Ocean planet

  An ocean planet (also termed a waterworld) is a type of planet whose surface is completely covered with an ocean of water. Planetary objects that form in the outer solar system begin as a comet-like mixture of roughly half water and half rock by mass. Simulations of solar system formation have...