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Animation showing exoplanets by year from 1991 until 2022 (March) with a total of 5005 discoveries [1] An exoplanet (extrasolar planet) is a planet located outside the Solar System. The first evidence of an exoplanet was noted as early as 1917, but was not recognized as such until 2016; no planet discovery has yet come from that evidence. [2]
There are eight planets within the Solar System; planets outside of the solar system are also known as exoplanets. Artist's concept of the potentially habitable exoplanet Kepler-186f As of 27 February 2025, there are 5,839 confirmed exoplanets in 4,359 planetary systems , with 979 systems having more than one planet . [ 1 ]
The largest exoplanet known is HAT-P-32b which is 2.037 R J. The smallest exoplanet known is also Kepler-42d which is 0.051 R J or 0.57 R 🜨. The densest transiting exoplanet known is CoRoT-3b, which has density of 26.4 g/cm 3; the diffusest transiting planet known is Kepler-12b, which has density of only 0.111 g/cm 3.
This is the list of years when at least one confirmed exoplanets were discovered. This is a container category . Due to its scope, it should contain only subcategories .
List of largest exoplanets; List of exoplanets and planetary debris around white dwarfs; List of exoplanets observed during Kepler's K2 mission; List of extrasolar planetary collisions; List of smallest exoplanets
The number of known exoplanets officially passed 5,000 on Monday, with NASA confirming the discovery of 65 new worlds. ... the above video is a soundscape created using NASA data of each time an ...
0–9. List of exoplanets discovered before 2000; List of exoplanets discovered between 2000–2009; List of exoplanets discovered in 2010; List of exoplanets discovered in 2011
From the total of 5,086 stars known to have exoplanets (as of January 26, 2024), there are a total of 1,033 known multiplanetary systems, [1] or stars with at least two confirmed planets, beyond the Solar System. This list includes systems with at least three confirmed planets or two confirmed planets where additional candidates have been proposed.