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User:Hftf/Books/Astro/D

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D

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Dark energy
Dark galaxy
Dark matter halo
Dark matter
Dark nebulae
De Vaucouleurs' law
Deep sky object
Density wave theory
Disc (galaxy)
Disc galaxy
Discovery of cosmic microwave background radiation
Distance measures (cosmology)
Distance modulus
Doppler effect
Dwarf elliptical galaxy
Dwarf galaxy