As`tro*nom"ic*al (#), a. [L. astronomicus, Gr. : cf. F. astronomique.]
Of or pertaining to astronomy; in accordance with the methods or principles of astronomy.
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As`tro*nom"ic*al*ly, adv.
Astronomical clock. See under Clock. -- Astronomical day. See under Day. -- Astronomical fractions, Astronomical numbers. See under Sexagesimal.
© Webster 1913.