Infrared Space Observatory
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Observational astronomy
STS-35
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Measurement and signature intelligence
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Frederick de Houtman
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Selection bias
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Italians
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Astrophysics
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Pierre-Simon Laplace
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Brahmana
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The Book of Fixed Stars
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Mauna Kea
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Optical telescope
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Outline of academic disciplines
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Mount Wilson Observatory
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Twinkling
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Culmination
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Active galactic nucleus
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Astrophotography
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Axial tilt
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List of astronomers
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Double star
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Astronomy
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Hubble sequence
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Accelerating expansion of the universe
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Vilnius
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Outline of space science
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Physics
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Observation
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Italy
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History of astronomy
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History of physics
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General relativity
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List of South Africans
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Ecliptic
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Carl Friedrich Gauss
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STS-51-F
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Physical cosmology
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Apparent magnitude
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Astrometry
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Amateur astronomy
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Astronomer
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Celestial observation
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