apastronとは 意味・読み方・使い方

語源

From English ap- (prefix meaning ‘away from, separate’) + Ancient Greek ᾰ̓́στρον (ắstron, “fixed star”), modelled after aphelion. Ἄ̆στρον (Á̆stron) is derived from ᾰ̓στήρ (ăstḗr, “celestial body (including a star, planet, meteor, etc.)”) (ultimately from Proto-Indo-European *h₂eHs- (“to burn; to glow”)) + -ον (-on, suffix forming nominative, accusative and vocative singular nouns).

発音

• (Received Pronunciation) IPA: /æˈpæstɹ(ə)n/
• (General American) IPA: /æˈpæstɹən/, [ə-]
• ハイフネーション: ap‧as‧tron

名詞

apastron (plural apastrons or apastra)

1. (astronomy) The point of greatest separation between a celestial object and the star which it orbits.

   Antonym: periastron

別の表記

• apoastron

上位語

• apoapsis

等位語

参照

Further reading

• apsis on Wikipedia.Wikipedia

アナグラム

• Pastrano