Exoplanetology

alt=Timelapse of exoplanets orbit motion|thumb|upright=1.5|Four exoplanets of the HR 8799 system imaged by the [[W. M. Keck Observatory over the course of seven years. Motion is interpolated from annual observations.]] thumb|295x295px|Comparison of the size of exoplanets orbiting Kepler-37 to Mercury, Mars and Earth An exoplanet or extrasolar planet is a planet outside of the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star was in 1995. A different planet, first detected in 1988, was confirmed in 2003.

thumb|right|Artist's impression of candidate exomoon Kepler-1625b I orbiting its planet.

astronomical object in interstellar space or on an interstellar trajectory, such as a comet

degree to which a planet is suitable for life, or study of planets which may be so suited

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planet that is outside the Milky Way Galaxy

thumb|Artist's concept of exomoon Kepler-1625b I orbiting exoplanet [[Kepler-1625b. Kepler-1625b I could theoretically have a subsatellite itself.|alt=]] A subsatellite, also known as a submoon or informally a moonmoon, is a "moon of a moon" or a hypothetical natural satellite that orbits the moon of a planet.

overview about the methods of detecting exoplanets

Proposed scale on how similar a Planetary-mass object or natural satellite is to earth

thumb |Artist's impression of the view of the sky from a planet orbiting inside the dust disk around the supermassive black hole in the center of the galaxy NGC 4261.

lowest possible mass of the celestial object

integrated field of astronomical science

method for detecting exoplanets

Institute for the search of habitable worlds

detecting planets located outside the Solar System

Italian astrobiologist (born 1972)

concept study for a Far-Infrared Surveyor space telescope mission

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