Related by context. Frequent words. (Click for all words.) 45 Big Dipper 43 Little Dipper 43 Deneb 43 Arcturus 42 Pleiades 38 Pollux 38 Nebula 38 Cassiopeia 38 constellation Leo 38 Scorpius 38 bicolor 37 nebula 37 Ursa Major 37 Albireo 37 Milky Way 37 conical 37 planetary nebula 36 Mizar 36 cluster 36 Aldebaran 35 Multiple Vulnerabilities 35 Procyon 35 spiral galaxy 35 Suzaku 35 Spica 35 supernova remnant 35 boomerang shaped 35 constellation Orion 35 planetary nebulae 34 Andromeda galaxy 34 Cepheids 34 ecliptic 34 hexagon 34 Betelgeuse 34 constellation Gemini 34 By ANDREA JOHNSON 34 ESO Very Large Telescope 34 constellations 34 Crab Nebula 34 torus 34 constellation 33 Cluster 33 planet orbiting 33 Cygnus 33 Supernovae 33 Milky Way Galaxy 33 Automatic FI 33 Carina Nebula 33 pentagonal 33 Kuiper Belt objects 33 nebulae 32 Milky Way galaxy 32 globular clusters 32 Algol 32 vertically stacked 32 Amarga 32 compute nodes 32 Orion Nebula 32 spiral galaxies 31 5U 31 Jupiter Saturn 31 Olympus Mons 31 Boreas 31 NS# [002] 31 globular cluster 31 planets orbiting 31 canter/#.# 31 active galactic nuclei 31 Mimas 31 planet orbits 31 Alpha Centauri 31 constellation Perseus 31 galaxy 31 dwarf galaxy 31 quasar 30 formerly codenamed 30 clusters 30 crescent 30 Sunspot 30 ionized gas 30 Aurora Borealis 30 Mauna Kea Hawaii 30 cigar shaped 30 Oort Cloud 30 Kuiper belt 30 aurora 30 dot 30 Rackmount 30 Bootes 30 unaided eye 30 distant galaxy 30 ellipse 29 Charon 29 Andromeda 29 Antares 29 elliptical galaxies 29 X ray emission 29 supernova remnants 29 globular 29 Andromeda Galaxy 29 Ophiuchus