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The ecliptic or ecliptic plane is the orbital plane of Earth around the Sun. [ 1 ] [ 2 ] [ a ] It was a central concept in a number of ancient sciences, providing the framework for key measurements in astronomy, astrology and calendar-making.
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]
Since the chart combines secular history with biblical genealogy, it worked back from the time of Christ to peg their start at 4,004 B.C. Above the image of Adam and Eve are the words, "In the beginning God created the Heaven and the Earth" (Genesis 1:1) — beside which the author acknowledges that — "Moses assigns no date to this Creation.
The Golden Gate of the Ecliptic is an asterism in the constellation Taurus that has been known for several thousand years. The asterism is formed of the two eye-catching open star clusters , the Pleiades and the Hyades that form the posts of a virtual gate on either side of the ecliptic line.
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]
Armillary sphere diagram. The exterior parts of this machine are a compages [or framework] of brass rings, which represent the principal circles of the heavens: . The equinoctial A, which is divided into 360 degrees (beginning at its intersection with the ecliptic in Aries) for showing the sun's right ascension in degrees; and also into 24 hours, for showing its right ascension in time.
Enjoy a classic game of Hearts and watch out for the Queen of Spades!
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 ...