Lists of planets explained

These are lists of planets. A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a protoplanetary disk. There are eight planets within the Solar System; planets outside of the solar system are also known as exoplanets.

Most of these were discovered by the Kepler space telescope. There are an additional 1,982 potential exoplanets from Kepler's first mission yet to be confirmed, as well as 976 from its "Second Light" mission and 4,646 from the Transiting Exoplanet Survey Satellite (TESS) mission.

In the Solar System

For a list of geophysical planets in the Solar System, see: List of gravitationally rounded objects of the Solar System This also includes a list of the eight planets according to the IAU definition.
For a list of objects in the Solar System once but no longer generally considered planets, see: List of former planets
For a list of objects in the Solar System, including planets, that have been or are believed to exist, but either have not been proven or have been disproven, see: List of hypothetical Solar System objects

Outside the Solar System

Lists of exoplanets* List of directly imaged exoplanets

Lists of exoplanets by year of discovery

Extrasolar systems

List of multiplanetary systems
List of exoplanets discovered using the Kepler space telescope
List of stars with proplyds
List of rogue planets

Exoplanets by method of detection:

Records in exoplanet detection:

Potential terrestrial exoplanets:

Fictional or non-scientific planets

For a list of planets as used in astrology, see: Planets in astrology
For a list of supposed planets not based on scientific evidence, see: Planetary objects proposed in religion, astrology, ufology and pseudoscience
For lists of planets in fiction, see: Fictional planets of the Solar System,, and List of Star Wars planets and moons

Mixed

List of planet types (etymologically accepting of multiple categories)

External links

The NASA Exoplanet Archive
The Extrasolar Planet Encyclopaedia — Catalog Listing accessed in 2015-09-28
Exoplanet Data Explorer accessed in 2015-09-28
Web site: Open Exoplanets Catalogue . 2017-02-27 .
The Exoplanet Orbit Database. Publications of the Astronomical Society of the Pacific. 2011-04-01. 0004-6280. 412–422. 123. 10.1086/659427. J. T.. Wright. O.. Fakhouri. G. W.. Marcy. E.. Han. Y.. Feng. John Asher. Johnson. A. W.. Howard. D. A.. Fischer. J. A.. Valenti. 902. 2011PASP..123..412W. 1012.5676 . 51769219.