Astronomy

Definition of Astronomy

As`tron´o`my
n.1.Astrology.
Not from the stars do I my judgment pluck;
And yet methinks I have astronomy.
- Shak.
2.The science which treats of the celestial bodies, of their magnitudes, motions, distances, periods of revolution, eclipses, constitution, physical condition, and of the causes of their various phenomena.
3.A treatise on, or text-book of, the science.
Physical astronomy
See under Physical.

Related Words

astrogeology, astrognosy, astrography, astrolithology, astrophotography, astrophysics, celestial mechanics, gravitational astronomy, meteoritics, radar astronomy, radio astronomy, solar physics, spectrography, spectroscopy, stargazing, stellar photometry, uranography, uranology, uranometry
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