|Look up extrasolar in Wiktionary, the free dictionary.|
An extrasolar object (from Latin extra, meaning 'outside or beyond', and solaris, meaning 'of the Sun') is an astronomical object that exists outside the Solar System. It is not applied to stars, or any other celestial object that is larger than a star or the Solar System, such as a galaxy. The terms for extrasolar examples of Solar System bodies are:
- Extrasolar planet, also called an "exoplanet"
- Extrasolar moon, also called an "exomoon"
- Exocomet, an extrasolar comet
- Extrasolar asteroid, with one identified as of 2013, orbiting GD 61
- Extraterrestrial, referring to objects or phenomena existing within the Solar System, but not on Earth
- Extragalactic astronomy, the study of objects outside the Milky Way Galaxy
- Interstellar object, an object that has traveled thru interstellar space, such as A/2017 U1
- Planetary system, a set of gravitationally bound non-stellar objects in orbit around a star or star system