This was the **apogee** of his reign.

In astronomy, the term is used in connexion with the Ptolemaic theory to denote the angular distance on the epicycle of a planet from the true **apogee** of the epicycle; and the "equation to the argument" is the angle subtended at the earth by the distance of a planet from the centre of the epicycle.

The **apogee** of palace poetry dates from 1275 to 1280, when young King Diniz displayed his exceptional talents in a circle formed by the best troubadours of his father Alphonso III.

The eccentricity of the ellipse is in the general average about 0.055, whence the moon is commonly more than i' further from the earth at **apogee** than at perigee.

Hipparchus fixed the chief data of astronomy - the lengths of the tropical and sidereal years, of the various months, and of the synodic periods of the five planets; determined the obliquity of the ecliptic and of the moon's path, the place of the sun's **apogee**, the eccentricity of his orbit, and the moon's horizontal parallax; all with approximate accuracy.

Damascus, Kuf a and Basra will attract the flower of all the Moslem provinces, and thus that great intellectual, literary and scientific movement, which reached its **apogee** under the first Abbasid Caliphs at Bagdad, steadily becomes more marked.

One of the most critical spirits of the age, his chronicle of King Manoel, the Fortunate Monarch, which he introduced by one of Prince John, afterwards King John II., is worthy of the subject and the reign in which Portugal attained the **apogee** of its greatness.

**Apogee**, Apocentre, Aposaturnium, &c. are terms applied to those points of the orbit of a body moving around a.