Periastral

Periastral
Periastral Per`i*as"tral, a. Among or around the stars. ``Comets in periastral passage.'' --R. A. Proctor. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • periastron — periastral, adj. /per ee as treuhn, tron/, n., pl. periastra / treuh/. Astron. the point at which the stars of a binary system are closest (opposed to apastron). [1850 55; < PERI + Gk ástron star; modeled on perihelion] * * * …   Universalium

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