The Heavenly Bodies

“Before the theory of sight can be understood, there are facts about the Earth you must grasp and terms you must learn.
We navigate by means of the Sun, the Moon, the planets and stars. Forget how the Earth spins round the Sun with the motionless stars inconceivable distances away; imagine instead that the Earth is the center of the universe and that all the heavenly bodies circle slowly round us, the stars keeping their relative positions while the Sun, Moon and Planets change their positions in relation to each other and to the stars.” [1]
No spinning ball Earth and expanding universe concepts, they just don’t work in Celestial Navigation.
Don’t figure. 


[1] Celestial Navigation for Yachtsmen Revised Edition by Mary Blewitt ISBN 0-07-005928-4