Leo Constellation, Zodiac, 1822
by U.S. Naval Observatory Library
Title
Leo Constellation, Zodiac, 1822
Artist
U.S. Naval Observatory Library
Medium
Photograph - Photograph
Description
Leo is one of the constellations of the zodiac. Its name is Latin for lion. One of the 48 constellations described by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations defined by the International Astronomical Union. Leo was one of the earliest recognized constellations, with archaeological evidence that the Mesopotamians had a similar constellation as early as 4000 BC. Leo is the fifth astrological sign of the zodiac, originating from the constellation of Leo. It spans the 120-150th degree of the Tropical zodiac, between 125.25 and 152.75 degree of celestial longitude, which the Sun transits this area on average between July 23 to August 22 each year. A Celestial Atlas (1822) by Alexander Jamieson, inspired by the star atlas of Johann Elert Bode, but restricted itself to stars that could be seen with the naked eye. Comprising a systematic display of the heavens in a series of thirty maps illustrated by scientific description of their contents and accompanied by catalogues of the stars and astronomical exercises, plate 17, 1822.
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August 14th, 2014
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