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16 Cygni 3 Juno 47 Ursae Majoris
47 Ursae Majoris b 4 Vesta 55 Cancri
55 Cancri c 55 Cancri e 90377 Sedna
Age of the universe Algol Andromeda Galaxy
Archaeoastronomy Aristarchus (crater) Asteroid
Astronomy Big Bang Binary star
Black hole Caloris Basin Cat's Eye Nebula
Ceres (dwarf planet) Chromatic aberration Comet
Comet Hale–Bopp Comet Hyakutake Comet Shoemaker–Levy 9
Comet White–Ortiz–Bolelli Cosmic microwave background radiation Cosmology
Crab Nebula Diffuse interstellar band Edmond Halley
Eris (dwarf planet) Extrasolar planet Extraterrestrial life
Fermi paradox Full moon Galaxy
Gas giant General relativity Gliese 876
Globular cluster Great Comet Great Comet of 1882
Great Red Spot HD 28185 H II region
Halley's Comet Hawking radiation Heliocentrism
Herbig–Haro object Hubble's law Hubble Deep Field
Inflation (cosmology) Introduction to M-theory Kuiper belt
Luminiferous aether Lunar eclipse M-theory
Makemake (dwarf planet) Meteor shower Meteoroid
Milky Way Moon Mu Arae
New moon Observable universe Open cluster
Optical telescope Orion Nebula Physical cosmology
Planetary nebula Pleiades Pluto
Portal:Astronomy Proxima Centauri Radio telescope
Red dwarf Red giant Redshift
Roche limit Scattered disc Shackleton (crater)
Sirius Solar System Solar eclipse
Standard Model Star Sun
Timeline of discovery of Solar System planets and their moons Transit of Venus Ultimate fate of the universe
Universe Upsilon Andromedae
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