Definition of extrasolar in English:



  • Found in or taking place outside the solar system.

    ‘at just 30 light years from Earth, it's one of the closest known extrasolar planets’
    ‘many sci-fi authors have assumed that faster-than-light travel and/or extrasolar exploration would become possible in the future’
    • ‘By the early twenty-first century, extrasolar planets have been found orbiting almost seventy solar-mass stars in the nearby region of the galaxy.’
    • ‘The creation interpretation affects our understanding of the origin of our solar system and of extrasolar planets.’
    • ‘Nevertheless, this unique observing technique opens a new phase in the exploration of exoplanets, or extrasolar planets, say astronomers.’
    • ‘Based on extrasolar planet discoveries in our own stellar neighborhood, astronomers predicted that seventeen planets should have been discovered.’
    • ‘The first definitive extrasolar planet around a main sequence star was announced on 6 October 1995 by Michel Mayor and Didier Queloz; the star was 51 Pegasi.’


1950s: from extra- + solar.