In a Newtonian reflector, light from the stars bounces off a curved mirror at the bottom of a tube and is reflected through the eyepiece by a secondary mirror positioned in the center of the tube.
(light from the stars; bounces off; L:In a Newtonian reflector) (light from the stars; is reflected; L:In a Newtonian reflector) (a secondary mirror; positioned; in the center of the tube)
light from the stars light from the stars a secondary mirror
bounces off is reflected positioned
L:In a Newtonian reflector
L:In a Newtonian reflector
in the center of the tube