Definition of periastron in English:

periastron

noun ˌpɛrɪˈastrənˌpɛriˈæstrən

Astronomy

The point nearest to a star in the path of a body orbiting that star.
〔天文〕近星点
Example sentencesExamples
- Also, relativistic advance of periastron has been studied and confirmed in certain binary stars with elliptical orbits.

Mid 19th century: from peri- 'around' + Greek astron 'star', on the pattern of perigee and perihelion.

nounˌpɛriˈæstrənˌperēˈastrən

Astronomy

The point nearest to a star in the path of a body orbiting that star.
〔天文〕近星点
Example sentencesExamples
- Also, relativistic advance of periastron has been studied and confirmed in certain binary stars with elliptical orbits.

Mid 19th century: from peri- ‘around’ + Greek astron ‘star’, on the pattern of perigee and perihelion.

词汇	periastron
释义	Definition of periastron in English: periastron noun ˌpɛrɪˈastrənˌpɛriˈæstrən Astronomy The point nearest to a star in the path of a body orbiting that star. 〔天文〕近星点 Example sentencesExamples Also, relativistic advance of periastron has been studied and confirmed in certain binary stars with elliptical orbits. Origin Mid 19th century: from peri- 'around' + Greek astron 'star', on the pattern of perigee and perihelion. Definition of periastron in US English: periastron nounˌpɛriˈæstrənˌperēˈastrən Astronomy The point nearest to a star in the path of a body orbiting that star. 〔天文〕近星点 Example sentencesExamples Also, relativistic advance of periastron has been studied and confirmed in certain binary stars with elliptical orbits. Origin Mid 19th century: from peri- ‘around’ + Greek astron ‘star’, on the pattern of perigee and perihelion.
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