Century Dictionary and Cyclopedia
- n. In astronomy, that part in the orbit of a double star where it is furthest from its primary.
- n. astronomy The point of greatest separation between two stars, especially in a binary star situation.
GNU Webster's 1913
- n. (Astron.) That point in the orbit of a double star where the smaller star is farthest from its primary.
- apo- + astron (Wiktionary)
“They had already passed apastron and were downward bound.”
“The station was outward bound for the apastron of its shortened and cometary path.”
“In this region, nearing apastron, no unusual velocity change was needed to alter orbit radically.”
“Nevertheless the ship took days, terrible days to reach apastron.”
“Now, at apastron, with Vixen's atmosphere to filter its radiation, the sun might almost have been Sol: smaller, brighter, but gentle in a blue sky where tall white clouds walked.”
“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 pair travel in an orbit from fourteen to forty-two times the radius of the Earth's orbit; so that when at apastron they are three times as distant from each other as when at periastron.”
“These orbs complete a revolution in 180 years, and when in apastron are seventeen times more remote from each other than when at periastron.”
“Any approach to, or recession from this point, must occur simultaneously with each; they must always occupy corresponding parts of their orbits, and be in apastron and at periastron in the same period of time.”
“Consequently, neither star can approach or recede from this point without the other affecting a similar motion, they must be at periastron and apastron together, and any acceleration or retardation of speed must occur simultaneously with each.”
These user-created lists contain the word ‘apastron’.
A list of words that are odd or words that I have looked up.
to the point
Words used in Astronomy
These are just some random words that I might find a list for someday.
being words related to astronomy, stellar cartography, and the music of the spheres, including names of planets, stars and constellations
Astro words in preparation for the future.
Looking for tweets for apastron.