Example Sentences

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The art has also been applied to the observation of comets at distances from their perihelia so great as to prevent their visual observation.

From History of Astronomy by Forbes, George

Those—and they are many—who vaguely think that science is something different from common-sense, and that any book is scientific which talks about perihelia and asymptotes and cetacea, will find their vague notions here well corroborated.

From The Unseen World and Other Essays by Fiske, John

Aphelion aphelia Criterion criteria Perihelion perihelia Ephemeron ephemera Automaton automata Ph�nomenon ph�nomena.

From A Handbook of the English Language by Latham, R. G. (Robert Gordon)

This comet, therefore, which, according to Goldschmidt, passes beyond the orbit of Jupiter, is one of the few whose perihelia are beyond Mars.

From COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 by Humboldt, Alexander von

Moreover, a large majority of comets would then have their aphelia in the direction of the sun’s motion, and therefore their perihelia in the opposite direction.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 7 "Columbus" to "Condottiere" by Various