A planet outside our solar system is called an extrasolar planet, or an exoplanet. Extrasolar planets are planets that orbit stars other than our Sun. As of 2021, there have been over 4,000 confirmed exoplanets discovered.
A planet outside our solar system is called an extrasolar planet. It is also called an exoplanet, which means a planet orbiting a star other than the Sun. The term "uncelestic" and "subcosmic" are not commonly used in astronomy to refer to planets outside our solar system.
