The Celestial Equator is marked here E Q W and like all other points and lines previously mentioned, it is the projection of the Equator until it intersects the celestial sphere.
"Lectures in Navigation"
Ernest Gallaudet Draper
He could see it as an intenser and colder projection of the darkness.
"Command"
William McFee
On this "Egypt," barring a small scale Mercator's projection of the world on which the ship's position is marked daily, there is no means of getting the information that can make a sea voyage so infinitely interesting.
"From Edinburgh to India & Burmah"
William G. Burn Murdoch