Schemes/en/Astronomy

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A comet

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Comet parts

An artificial satellite

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Parts of Ulysses

The Solar System

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Moons

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Moons of Solar System

The Sun

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Sun layers

The Earth

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See: Geology

Earth lighting equinox

Neptune

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Neptune

Others

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a Hertzsprung-Russell diagram; a plot of luminosity versus spectral class for a group of stars