Of+the+equinoctial
61To cross the line — Line Line, n. [OE. line, AS. l[=i]ne cable, hawser, prob. from L. linea a linen thread, string, line, fr. linum flax, thread, linen, cable; but the English word was influenced by F. ligne line, from the same L. word linea. See {Linen}.] 1. A… …
62EQUINOXES — the two annually recurring times at which the sun arrives at the EQUINOCTIAL POINTS (q.v.), viz., 21st March and 22nd September, called respectively the vernal and the autumnal equinoxes in the northern hemisphere, but vice versa in the… …
63sidereal day — The period between two successive transits of a particular meridian on the earth by the first point of Aries or successive transits of the vernal equinox. Because the first point of Aries is not fixed in space and it precesses along the… …
64Aries, first point of — The point of the equinoctial where the sun moving along the ecliptic passes from south to north direction. Also known as the vernal equinox …
65Armillary sphere — An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of the celestial sphere. Description and use of the armillary sphere The exterior parts of this machine are a compages of brass rings, which represent …
66Colure — Orange = equinoctial colure Blue = solstitial colure G = e …
67Sundial — A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style (a thin rod or a sharp, straight edge) onto a flat surface marked with lines indicating… …
68Colure — Co*lure (k[ o]*l[=u]r ), n.; pl. {Colures} (k[ o]*l[=u]rz ). [F. colure, L. coluri, pl., fr. Gr. ko loyros dock tailed, a i ko loyroi (sc. grammai lines) the colures; fr. ko los docked, stunted + o yra tail. So named because a part is always… …
69Colures — Colure Co*lure (k[ o]*l[=u]r ), n.; pl. {Colures} (k[ o]*l[=u]rz ). [F. colure, L. coluri, pl., fr. Gr. ko loyros dock tailed, a i ko loyroi (sc. grammai lines) the colures; fr. ko los docked, stunted + o yra tail. So named because a part is… …
70e|qui|noc|tial — «EE kwuh NOK shuhl», adjective, noun. –adj. 1. having to do with an equinox, or with a state when day and night are of equal length in all parts of the earth. 2. occurring at the time of an equinox: equinoctial storms. »The equinoctial seasons… …
