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:
“Explore, and explore. Be neither chided nor flattered out of your position of perpetual inquiry. Neither dogmatize, or accept another’s dogmatism.”
—Ralph Waldo Emerson (1803–1882)
“And year by year our memory fades
From all the circle of the hills.”
—Alfred Tennyson (1809–1892)