A PHP Error was encountered

Severity: Notice

Message: Only variable references should be returned by reference

Filename: core/Common.php

Line Number: 257

Space - Newtonian-reflector

Newtonian reflector

A type of reflecting telescope that uses mirrors. Light entering the telescope reflects off a primary mirror, located at the base of the telescope, onto a secondary mirror, located near the top of the telescope. The secondary mirror reflects the light at a right angle to the eyepiece located on the side of the telescope.