What is another word for exoplanet?
Pronunciation: [ɛɡzˈɒplɐnˌɛt] (IPA) 
Exoplanet is a term used to describe a planet that orbits a star other than our own sun. However, there are a variety of other synonyms that can be used interchangeably with this term. These synonyms include extrasolar planet, alien planet, and planetary system. The term extrasolar planet emphasizes the unique nature of these planets which are located outside our own solar system. Alien planet is often used to evoke the sense of other-worldly beings that may exist on these exoplanets. Finally, planetary system emphasizes the fact that these planets are often found in groups around their host star, much like our own solar system. Regardless of the specific synonym used, the discovery of exoplanets has been a major breakthrough in our understanding of the universe.
