Related by context. Frequent words. (Click for all words.) 58 orb 57 magnifying lens 56 eyepiece 56 sunbeams 55 camera viewfinder 54 constellation Orion 53 ultraviolet wavelengths 53 unaided eye 53 oblique angle 52 comet tail 52 Andromeda galaxy 51 solar corona 51 Crab Nebula 51 eyepieces 51 celestial object 50 glowy 50 SIRTF 50 visible wavelengths 50 viewfinder 50 faint glow 50 Amateur astronomers 50 Betelgeuse 50 spacecraft orbiting 50 Olympus Mons 50 infrared beam 50 Earthlike 49 beam splitter 49 Mimas 49 photometer 49 blobs 49 Andromeda Galaxy 49 reflective surfaces 49 Earth magnetosphere 49 Saturn rings 49 distant galaxy 49 HiRISE camera 49 Orion Nebula 48 planet orbits 48 meteoroids 48 starbursts 48 infrared wavelengths 48 rays 48 planet Uranus 48 sky 48 gravitationally 48 galaxy NGC 48 NASA Spirit rover 48 magnifications 48 distant galaxies 48 fluffy clouds 48 astronomical objects 48 sunbeam 47 nebulae 47 ellipse 47 innermost planet 47 telescope 47 highly elliptical orbit 47 XMM Newton 47 infrared telescope 47 Oort Cloud 47 Cosmic rays 47 NASA Cassini spacecraft 47 Valles Marineris 47 orbiting planets 47 camera lens 47 comet nucleus 47 polar vortex 47 accretion disk 47 sunlight 47 viewport 47 Galileo spacecraft 47 Keck telescope 47 magnification 47 martian surface 47 infrared imagery 47 optical wavelengths 47 reticule 47 icy crust 47 nebulas 47 blindingly bright 47 nebula 46 loupe 46 blob 46 comet 46 squinting 46 spyglass 46 aurorae 46 Carina Nebula 46 magnetars 46 WASP #b 46 X ray emission 46 shiny metallic 46 shorter wavelengths 46 interstellar dust 46 infrared rays 46 interplanetary spacecraft 46 habitable planets 46 moonlets 46 spiral galaxy 46 Saturn moons 46 flyby spacecraft