apastron

A diagram illustrating the apastron between a star (the inner object) and a celestial object orbiting it.

From English apo- (prefix meaning ‘away from, separate’) + Ancient Greek ᾰ̓́στρον (ástron, “fixed star”), modelled after aphelion.[1] Ἄ̆στρον (Ástron) is derived from ᾰ̓στήρ (astḗr, “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).

• (Received Pronunciation) IPA^(key): /æˈpæstɹ(ə)n/

• Audio (Southern England)

  (file)

• (General American) IPA^(key): /æˈpæstɹən/, [ə-]
• Hyphenation: ap‧as‧tron

apastron (plural apastrons or apastra)

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

   Antonym: periastron

• apoastron

• apoapsis

• apsis on Wikipedia.Wikipedia

• Pastrano

From Ancient Greek ἀπό- (apó-) + Ancient Greek ᾰ̓́στρον (ástron).

• IPA^(key): /aˈpas.trɔn/

• Audio

  (file)

• Rhymes: -astrɔn
• Syllabification: a‧pas‧tron

apastron m inan

1. (astronomy) apastron

   Antonyms: periastron, peryastron

• apastron in Polish dictionaries at PWN