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astronomical
01
incredibly large in quantity or vast in scope, often to the point of being beyond comprehension or imagination
02
concerning or involving the scientific field of astronomy
Example
The price of that rare painting is astronomical.
Astronomical observations help scientists understand the origins and evolution of stars and galaxies.
The mysterious lights in the sky were unexplained by weather or astronomical events.
The elliptical orbit of the comet was represented by an ellipsoidal trajectory on the astronomical chart.
In his astronomical work the Almagest, Ptolemy used a system of deferents and epicycles to explain the observed motions of planets across the night sky.
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