Scioly Astro Types of Exoplanets

Composed primarily of volatile substances heavier than helium, such as oxygen, carbon, nitrogen, and sulfur. Have significantly less helium and hydrogen than gas giants and they are also smaller

Interstellar planet, nomad planet, free-floating planet, orphan planet, wandering planet, or starless planet. A planet without a host star that orbits the galaxy directly.

A planet that orbits a pulsar, a rapidly rotating neutron star. Discovered through anomalies in pulsar timing measurements. Bodies orbiting the pulsar will cause regular changes in its pulsation, which can be detected with precise timing measurements.

A planet with a large radius but very low density. Expand because they are being warmed from the inside out. May be from the star's heat and reaches the planet's core, or from stellar winds carrying ions and heat that reach deeper into the planet. The ions are attracted to the planet's magnetic field. Friction is generated by winds blowing ppast ions being held by the magnetic field, creating heat that will warm the planet from the inside and causing it to expand.

The rocky core left behind when a hot Jupiter orbits too close to their star. The star's heat and gravity can rip away the planet's water or atmosphere

Planets composed mainly of hydrogen and helium. They may possibly have rocky or icy cores. They have masses greater than 10 Earth masses

Planet that falls within a star's habitable zone, which bassically means it has liquid water.

Gas Giants that orbit very close to their host star. They are extremely hot, with temperatures as high as 2400 K. Initially the most common type of exoplanet found because they are easiest to detect.

Also known as a gas dwarf or transitional planet. Planets with a mass up to 10 Earth masses. Have thick hydrogen/helium atmospheres

Composed primarily of silicate minerals or metals

Defined exclusively by mass with upper and lower limits. Super Earths are 'potentially' rocky planets with up to 10 times the mass of Earth. These may be gas dwarfs. Larger than Earth-like but smaller than mini-Neptunes