evection

This he called the evection, and introduced another epicycle to represent it.

Kepler Bryant, Walter W 1920

In quadrature, however, where the half-moon formed a right angle at the earth with the sun, the distance moon-earth had to be reduced to conform with this “evection,” as it was called later.

Dictionary of the History of Ideas EDWARD ROSEN 1968

His chief discovery was an irregularity of the lunar motion, called the '_evection_.'

The Astronomy of Milton's 'Paradise Lost' Thomas Nathaniel Orchard

He was a working astronomer, and he made at least one original discovery of some significance -- namely, the observation of a hitherto unrecorded irregularity of the moon's motion, which came to be spoken of as the moon's evection.

A History of Science: in Five Volumes. Volume I: The Beginnings of Science 1904

Moreover, such observations as the precession of the equinoxes and the moon's evection are as yet unexplained, and measurements of the earth's size, and of the sun's size and distance, are so crude and imperfect as to be in one case only an approximation, and in the other an absurdly inadequate suggestion.

A History of Science: in Five Volumes. Volume I: The Beginnings of Science 1904

(The equation of the centre, discovered by Hipparchus.) (_a_) The evection, discovered by Hipparchus and Ptolemy.

Pioneers of Science Oliver Lodge 1895

It then gives Ptolemy's own great discovery -- that which has made his name immortal -- the discovery of the moon's evection or second inequality, reducing it to the epicyclic theory.

History of the Conflict between Religion and Science 1881

Praefect the superintendence of the Cursus Publicus, that excellent institution by which facilities for intercourse were provided between the capital and the most distant Provinces, relays of post-horses being kept at every town, available for use by those who bore properly signed 'letters of evection.'

The Letters of Cassiodorus Being A Condensed Translation Of The Variae Epistolae Of Magnus Aurelius Cassiodorus Senator Senator Cassiodorus 1872

Praefect remained responsible for the supply of their food; and the charge of the _Cursus Publicus_ was accordingly retransferred -- at any rate in the Eastern Empire -- to the office of the Praefect, though the letters of evection still required the counter-signature of the

The Letters of Cassiodorus Being A Condensed Translation Of The Variae Epistolae Of Magnus Aurelius Cassiodorus Senator Senator Cassiodorus 1872

It then gives Ptolemy's own great discovery -- that which has made his name immortal -- the discovery of the moon's evection or second inequality, reducing it to the epicyclic theory.

History of the Conflict Between Religion and Science John William Draper 1846