Of 60 degrees

• In astrology, when two celestial bodies' are 60° apart

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1550s (adj.), "at a distance of 60 degrees;" 1590s (n.); from Latin sextilis (adj.) "the sixth," from sextus "sixth" (ordinal number; see Sextus ).

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Sextile \Sex"tile\, n. [Cf. F. aspect sextil.] (Astrol.) The aspect or position of two planets when distant from each other sixty degrees, or two signs. This position is marked thus: ********. --Hutton.

Wiktionary Word definitions in Wiktionary
a. (context astronomy English) Of or noting the aspect or position of any two celestial bodies separated by 60°. n. 1 (context statistics English) The specific term used for a quantile of six equal proportions. 2 ''statistics'' Any of the subsets thus obtained. ...

Wikipedia Word definitions in Wikipedia
In astrology , a sextile is an astrological aspect that is made when two planets or other celestial bodies are 60 degrees apart. Historically, Sextile was the ancient name for the month of August, before it was changed in honor of Emperor Augustus . Category:Astrological ...