Mount Palomar, Mount Wilson, and Lowell Observatory By: Meagan Partridge and Jeffrey Oravic

Mount Palomar Observatory N San Diego County, CA California Institute of Technology 200-in Hale Telescope 48-in Samuel Oschin Telescope 60-in Telescope 18-in Schmidt Telescope 24-in Telescope

Mount Wilson Observatory 1904 by George Hale 60-inch telescope 100-inch Hooker telescope 3 solar telescopes or solar towers Interferometry

Lowell Observatory 1894 by Percival Lowell Research 72-inch Perkins Telescope 42-inch Hall Telescope Titan Monitor Telescope Discovery Channel Telescope 24-inch Alvan Clark Telescope