Dec 1, 2018 - 00:00
Dec 1, 2018 - 00:00
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ASTRON'OMY, n. [Gr. a star, and a law or rule.]

The science which teaches the knowledge of the celestial bodies, their magnitudes, motions, distances, periods of revolution, aspects, eclipses, order, _c. This science depends on observations, made chiefly with instruments, and upon mathematical calculations.

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