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Astronomy Other Worlds:     more books (94)

Out of This World: The Amazing Search for an Alien Earth by Jacob Berkowitz, 2009-09-01 Worlds Without End by R. L. Hennessey, 1999-10 Smaller Satellites: Bigger Business?: Concepts, Applications and Markets for Micro/Nanosatellites in a New Information World Pluto and Other Dwarf Planets (Space Neighbors) by L. L. Owens, 2011-01 ASTROBIOLOGYPB (Smithsonian's Natural World Series) by Grady M, 2001-03-17 Aliens (World of Science Fiction) by John Hamilton, 2006-09 The Extraterrestrial Life Debate 1750-1900: The Idea of a Plurality of Worlds from Kant to Lowell by Michael J. Crowe, 1986-04-30 Earth Is Like a Giant Magnet: and Other Freaky Facts About Planets, Oceans, and Volcanoes by Barbara Seuling, 2008-02-15 The Day the Universe Changed: How Galileo's Telescope Changed The Truth and Other Events in History That Dramatically Altered Our Understanding of the World (Back Bay Books) by James Burke, 1995-09-01 The Nazi Rocketeers: Dreams of Space and Crimes of War by Dennis Piszkiewicz, 1995-09-30 Kepler: A space mission to detect earth-class exoplanets (Proceedings / SPIE--the International Society for Optical Engineering) by David G Koch, 1998 Study Guide, Volume I by Mark Kishlansky, Patrick Geary, 2005-05-23 Space Science The Politics Of Space: A History Of U.S.-Soviet/Russian Competition and Cooperation In Space by Matthew Von Bencke, 1996-10-17

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101. Civilization.ca - Mystery Of The Maya - Astronomy
     astronomy. Of all the world s ancient calendar systems, the Maya and otherMesoamerican systems are the most complex, intricate and accurate.  
     http://www.civilization.ca/civil/maya/mmc07eng.html
     
     Extractions: QUICK LINKS Home page Archaeology Arts and Crafts Civilizations Cultures First Peoples History Treasures Military history Artifact catalogue Library catalogue Other Web sites Boutique Of all the world's ancient calendar systems, the Maya and other Mesoamerican systems are the most complex, intricate and accurate. Calculations of the congruence of the 260-day and the 365-day Maya cycles is almost exactly equal to the actual solar year in the tropics, with only a 19-minute margin of error. Maya astronomer-priests looked to the heavens for guidance. They used observatories, shadow-casting devices, and observations of the horizon to trace the complex motions of the sun , the stars and planets in order to observe, calculate and record this information in their chronicles, or "codices" . From these observations, the Maya developed calendars to keep track of celestial movements and the passage of time. The Maya also kept detailed records of the moon , although these do not seem to constitute a formal lunar calendar.

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