Certain astronomical conjunctions determined the selection of the fast-days, which in their total number amounted to nearly a quarter of the year.
The commoner conjunctions are a, ac, " and "; ond, eithr," but "; o, os, " if "; pan, " when "; tra, " while."
So again in determining the " import " of propositions, it is no accident that in all save existential propositions it is to the familiar rubrics of associationism - co-existence, sequence, causation and resemblance - that he refers for classification, while his general formula as to the conjunctions of connotations is associationist through and through.
In the case of the planets it is the period between successive conjunctions of the same kind, inferior or superior, with the sun.
The successive entries of the moon and planets into the nakshatras (the ascertainment of which was of great astrological importance) were fixed by means of their conjunctions with the yogataras.