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单词 apastron
释义

Definition of apastron in English:

apastron

noun aˈpastr(ə)n
Astronomy
  • The point in the path of a celestial object orbiting a star at which it is farthest from the star.

Origin

Mid 19th century; earliest use found in William H. Smyth (1788–1865), naval officer and surveyor. From apo- + ancient Greek ἄστρον star, after aphelion.

 
 

Definition of apastron in US English:

apastron

nounaˈpastr(ə)n
Astronomy
  • The point in the path of a celestial object orbiting a star at which it is farthest from the star.

Origin

Mid 19th century; earliest use found in William H. Smyth (1788–1865), naval officer and surveyor. From apo- + ancient Greek ἄστρον star, after aphelion.

 
 
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更新时间:2025/2/26 2:05:42