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What is another word for Periastron?

Pronunciation: [pˈi͡əɹɪˌastɹɒn] (IPA)

Periastron is a term commonly used in astronomy to describe the point in an orbit of a celestial body where it is closest to its central star. However, there are several alternate terms that can be used interchangeably to refer to this phenomenon. One such synonym is the word "pericenter", which carries the same meaning and is frequently employed in scientific literature. Additionally, the term "closest approach" can also be utilized to convey the concept of periastron. This phrase is often used to describe the point at which two celestial bodies come closest to each other during their respective orbits. In conclusion, "periastron", "pericenter", and "closest approach" are all valid synonyms that refer to the same celestial phenomenon.
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What are the opposite words for Periastron?

Periastron is a term used in astronomy to describe the point in the orbit of two stars where they are closest to each other. The antonyms for periastron would be aphelion, apocenter, or furthest point, which is the opposite of periastron, where two stars are farthest apart in their orbit. These antonyms have different meanings, but they all represent the opposite of periastron. Aphelion is the farthest point in the orbit of a planet around the Sun. Apocenter is the farthest point in the orbit of a satellite around a planet or moon. Periastron and its antonyms are important astronomical terms that help scientists understand the movement of celestial objects.

What are the antonyms for Periastron?

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Usage examples for Periastron

The eccentricity of their orbit approaches in form that of Faye's comet, which travels round the Sun; consequently the stars, when at apastron, are twice their Periastron distance.
"The Astronomy of Milton's 'Paradise Lost'"
Thomas Orchard
These orbs complete a revolution in 180 years, and when in apastron are seventeen times more remote from each other than when at Periastron.
"The Astronomy of Milton's 'Paradise Lost'"
Thomas Orchard
The last Periastron was ninety years ago, and we've only been here for sixty-odd; all we have is verbal accounts from memory from the natives, probably garbled and exaggerated.
"Oomphel in the Sky"
Henry Beam Piper

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