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Aries

Overview page. Subjects: Astronomy and Astrophysics — Literary Studies (Early and Medieval).

(Ari) (Arietis) A constellation of the zodiac, representing a ram. The Sun lies in Aries for the last 10 days of April until mid-May. Its brightest star is Alpha Arietis (Hamal). Gamma...

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aspect

Overview page. Subjects: Astronomy and Astrophysics — Literary Studies (Early and Medieval).

The position of a body in the Solar System relative to the Sun, as seen from Earth. The main aspects are conjunction, greatest elongation, opposition, and quadrature.

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bird

Overview page. Subjects: Literary Studies (Early and Medieval) — Biological Sciences.

A class (Aves) of endothermic (see endotherm) vertebrates that are adapted for flight, bipedal walking or running, and, in some species, swimming on or below the surface of water;...

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celestial sphere

Overview page. Subjects: Astronomy and Astrophysics — Literary Studies (Early and Medieval).

The imaginary sphere, centred on the observer, on which all celestial bodies such as the Sun, Moon, and stars appear to be located. The positions of certain atmospheric optical phenomena...

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equant

Overview page. Subjects: Astronomy and Astrophysics — Literary Studies (Early and Medieval).

In the Ptolemaic system of planetary motion, a point to one side of the Earth with respect to which an epicycle would have uniform angular motion.

equant

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