HISTORY OF ASTRONOMY
Arabian astronomy archeoastronomy Argo Navis armillary sphere astrolabe Astronomer Royal astronomy Babylonian astronomy Bayer constellations calendar Chinese astronomy Copernican Revolution Copernican System Egyptian astronomy epicycle fixed star Greek astronomy Gregorian calendar Indian astronomy Julian calendar orrery Ptolemaic System quadrant speculum sundial Vulcan Related category ASTRONOMERS AND ASTROPHYSICISTSAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |