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Niel Hancock (January 8, 1941 [1] – May 7, 2011) was an American fantasy writer most famous for authoring the Circle of Light series and creating the fictional universe of Atlanton Earth. After being out of print for several years, his novels were reprinted by Tor Books. Hancock's fantasy books are grouped into three sets of four books each.
The Tropic of Cancer's position is not fixed, but constantly changes because of a slight wobble in the Earth's longitudinal alignment relative to the ecliptic, the plane in which the Earth orbits around the Sun. Earth's axial tilt varies over a 41,000-year period from about 22.1 to 24.5 degrees, and as of 2000 is about 23.4 degrees, which will ...
Posidonius calculated the Earth's circumference by reference to the position of the star Canopus.As explained by Cleomedes, Posidonius observed Canopus on but never above the horizon at Rhodes, while at Alexandria he saw it ascend as far as 7 + 1 ⁄ 2 degrees above the horizon (the meridian arc between the latitude of the two locales is actually 5 degrees 14 minutes).
Beyond the firmament is the upper waters, above which further still is the divine abode. [11] The gap between heaven and Earth was bridged by ziggurats and these supported stairways that allowed gods to descend into the Earth from the heavenly realm. A Babylonian clay tablet from the 6th century BC illustrates a world map.
The equator is the circle that is equidistant from the North Pole and South Pole. It divides the Earth into the Northern Hemisphere and the Southern Hemisphere. Of the parallels or circles of latitude, it is the longest, and the only 'great circle' (a circle on the surface of the Earth, centered on Earth's center). All the other parallels are ...
The Book of the Earth (Arabic: كتاب الارض, romanized: Kitab al-Arid) is an Ancient Egyptian funerary text that has been called many names such as The Creation of the Sun Disk and the Book of Aker. [1] The Book primarily appears on the tombs of Merneptah, Twosret, Ramesses III, Ramesses VI, and Ramesses VII and serves as a counterpart ...
The book also contains rules for computing the longitudes of planets using eccentrics and epicycles. In the final section, the "Gola" or "The Sphere," Aryabhata goes into great detail describing the celestial relationship between the Earth and the cosmos. This section is noted for describing the rotation of the Earth on its axis.
The tilt of the Earth's polar axis remains constant but describes a circular path in space during a period known as The Great Year. The term Great Year has more than one major meaning. It is defined by scientific astronomy as "The period of one complete cycle of the equinoxes around the ecliptic , or about 25,800 years".