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Georges St. Clair noted that Neith is represented at times as a cow goddess with a line of stars across her back [32] (as opposed to representations of Nut with stars across the belly) [See el-Sayed, II, Doc. 644], and maintained this indicated that Neith represents the full ecliptic circle around the sky (above and below), and is seen ...
In the Hipparchian, Ptolemaic, and Copernican systems of astronomy, the epicycle (from Ancient Greek ἐπίκυκλος (epíkuklos) 'upon the circle', meaning "circle moving on another circle") [1] was a geometric model used to explain the variations in speed and direction of the apparent motion of the Moon, Sun, and planets.
There are grooves which encircle the surface of the globe that create 12 sections of 30° which pass through the ecliptic poles. While they are no longer used in astronomy today, they are called "ecliptic latitude circles" and help astronomers of the Arabic and Greek worlds find the co-ordinates of a particular star. [22]
The use of astronomical symbols for the Sun and Moon dates to antiquity. The forms of the symbols that appear in the original papyrus texts of Greek horoscopes are a circle with one ray for the Sun and a crescent for the Moon. [3] The modern Sun symbol, a circle with a dot (☉), first appeared in Europe in the Renaissance. [3]
The ecliptic or ecliptic plane is the orbital plane of Earth around the Sun. [ 1 ] [ 2 ] [ a ] From the perspective of an observer on Earth, the Sun's movement around the celestial sphere over the course of a year traces out a path along the ecliptic against the background of stars . [ 3 ]
The path of the North Pole projected on the sky is a circle which takes 25,772 years to complete. The data in red show the polar point in past epochs and the constellation the vernal equinox was in at that time. The plane of the ecliptic is the plane described by the apparent motion of the Sun against the starry background. It is the Earth's ...
The imaginary great circle of a body's celestial sphere that is coplanar with the body's terrestrial equator. On Earth, the plane of the celestial equator is the basis of the equatorial coordinate system. Due to Earth's axial tilt, this plane is currently inclined at an angle of 23.44 degrees with respect to the ecliptic.
The heliocentric ecliptic system describes the planets' orbital movement around the Sun, and centers on the barycenter of the Solar System (i.e. very close to the center of the Sun). The system is primarily used for computing the positions of planets and other Solar System bodies, as well as defining their orbital elements .