periastral

== English == === Etymology === From peri- +‎ astral. === Adjective === periastral (not comparable) (archaic, astronomy) Moving among or around the stars. Of or pertaining to the periastron === References === “periastral”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.