太陽周回軌道




太陽周回軌道（たいようしゅうかいきどう、英語: heliocentric orbit）とは太陽を中心として周回する軌道（公転軌道）である。太陽系のすべての惑星、彗星、小惑星や多くの宇宙探査機や多くの人工的なスペースデブリが該当する。月の公転軌道は太陽周回軌道ではなく地球周回軌道であるが、地球の公転速度も含めて考えると太陽の影響の方が強い。


接頭語であるヘリオ（helio）とは古代ギリシャの太陽を表すヘリオに由来し、同時にギリシャ神話における太陽を擬人化したヘーリオスをも意味する[1]。



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  1. ^ dictionary.com, definition and derivation of 'helio-'




関連項目



  • 地動説

  • 極軌道

  • 人工惑星

  • 人工惑星一覧

  • 人工衛星の軌道








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