subsolar

[ suhb-soh-ler ]
/ sʌbˈsoʊ lər /

adjective

situated beneath the sun or between the earth and the sun.
between the tropics.

Origin of subsolar

First recorded in 1650–60; sub- + solar1

British Dictionary definitions for subsolar

subsolar
/ (sʌbˈsəʊlə) /

adjective

(of a point on the earth) directly below the sun
situated between the tropics; equatorial