a telescope at lowell observatory with a view of orion's belt and other stars visible in the sky out the window

1930 2018 and arizona astrology astronomer astronomy awe awesome belt black bright brown building center clyde dark dec demo demonstration discovered dwarf education equipment flagstaff gray historic kings landmark lowell museum national night observation observatory orions other out peaceful physics planet pluto research sisters sky starry stars telescope three tombaugh tranquil view visible was window wood telescopes astronomers beautiful star constellation galaxy milky way dome structure astrophysics