A position circle is a circle that can be measured both from a chart and from the surface of the earth for the purpose of position fixing. The circles can be measured by sextant. Two overlapping position circles can be used to give a position fix.
Famous quotes containing the words position and/or circle:
“Einstein is loved because he is gentle, respected because he is wise. Relativity being not for most of us, we elevate its author to a position somewhere between Edison, who gave us a tangible gleam, and God, who gave us the difficult dark and the hope of penetrating it.”
—E.B. (Elwyn Brooks)
“Sense is a line, the mind is a circle. Sense is like a line which is the flux of a point running out from itself, but intellect like a circle that keeps within itself.”
—Ralph J. Cudworth (1617–1688)