abu simbel angkor wat angular resolution aperture arecibo observatory arkaim astronomical seeing astronomy australia beijing ancient observatory cambodia chankillo cheomseongdae chichen itza chile china climatology continuum international publishing group dome egypt electromagnetic interference electromagnetic spectrum encyclopedia of the history of arabic science fundamental station geology germany goseck circle great britain hawaii hubble space telescope india infrared iran iraq istanbul observatory of taqi al-din jungfraujoch kokino large millimeter telescope light pollution list of astronomical observatories list of observatory codes maragheh maragheh observatory mauna kea observatory meteorology mexico new mexico new south wales observation post oceanography optical telescope orbit outer space paranal observatory parkes observatory peru peter barrett prentice hall puebla puerto rico radar radio radio astronomy radio frequency radio telescope republic of macedonia research institute roque de los muchachos observatory routledge russia sierra negra south korea southwestern united states space shuttle space observatory spain sphinx observatory star stjerneborg stonehenge sweden swiss alps the observatory turkey ujjain ultraviolet ulugh beg united kingdom uraniborg uzbekistan valley very large array very large telescope visible-light astronomy volcano volcano observatory volcanology wikimedia commons wiktionary woods hole oceanographic institution yantra mandir