Exoplanet - Wikipedia
网页An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not then recognized as such. The first confirmation of the detection occurred in 1992. A different planet, first detected in 1988, was confirmed in 2003.
Exoplanets - ESO
网页The search for planets outside our Solar System constitutes a key element of what is possibly the most profound question for humanity: is there life elsewhere in the Universe? ESO's observatories are equipped with a unique arsenal of instruments for finding, studying and monitoring these exoplanets.
Encyclopaedia of exoplanetary systems
网页This encyclopaedia provides the latest detections and data announced by professional astronomers on exoplanetary systems. It contains objects lighter than 60 masses of Jupiter, which orbit stars or are free-floating.
ESA - What are exoplanets? - European Space Agency
网页An exoplanet is a planet outside our own Solar System, sometimes referred to as an extrasolar planet. More than 5000 exoplanets have been confirmed. Some are massive, like Jupiter, but orbit much closer to their host star than Mercury does to our Sun.
Extrasolar Planets News -- ScienceDaily
网页2024年7月22日 · Researchers Discover a Space Oddity -- An Exoplanet Moving in Mysterious Ways. Sep. 5, 2024 — A research team has discovered a small planet that displays peculiar orbital motion. The shimmying ...
Extrasolar Planets Encyclopaedia - Wikipedia
网页The Extrasolar Planets Encyclopaedia[ 2][ 3][ 4][ 5][ 6] (also known as Encyclopaedia of exoplanetary systems and Catalogue of Exoplanets) is an astronomy website, founded in Paris, France at the Meudon Observatory by Jean Schneider in February 1995, [ 7][ 8] which maintains a database of all the currently known and candidate extrasolar planets,...
extrasolar planet summary | Britannica
网页extrasolar planet, also called exoplanet, Planet that orbits a star other than the Sun. The existence of extrasolar planets, many light-years from Earth, was confirmed in 1992 with the detection of three bodies circling a pulsar. The first planet revolving around a more sunlike star, 51 Pegasi, was reported in 1995.
EXOPLANETS - Extrasolar Planets Encyclopedia - NASA
网页6 天之前 · The Extrasolar Planets Encyclopedia is a working tool, providing all the latest detections and data that have been announced by professional astronomers, Which is intended to be used to facilitate progress in exoplanetology. Ultimately, researchers willing to make a quantitative, scientific use of the catalog can make their own judgement on the ...
Observed Properties of Extrasolar Planets | Science - AAAS
网页2013年5月3日 · Observational surveys for extrasolar planets probe the diverse outcomes of planet formation and evolution. These surveys measure the frequency of planets with different masses, sizes, orbital characteristics, and host star properties. Small planets between the sizes of Earth and Neptune substantially outnumber Jupiter-sized planets.
Extrasolar planets - Nature
网页2008年1月2日 · Extrasolar planets. Dimitar D. Sasselov. Nature 451, 29–31 (2008) Cite this article. 762 Accesses. 17 Citations. 11 Altmetric. Metrics. Hundreds of planets are known to orbit...