Distance from the Earth to the Sun
What is the second nearest star to the Earth? Amount of sunlight reaching Earth Distance to Polaris, The North Star  Earth escape velocity; Earth surface area; Earth's revolution	Many Biographies of Famous Astronomers Aristarchus of Samos Galileo Halley' s Comet; Edmund Halley Getting Started With Constellations
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Spreadsheets for Download These require Microsoft Excel to read. General Information Telescope.xls  Traksat.xls  Obsrvtry.xls  Ocular.xls  Planets.xls  Stars.xls  Observing Lists BrightStars.xls  Next100.xls  Messier.xls  Mesr-mas.xls  Messier_plus.xls  Best-NGC.xls  Nebula.xls  Hersch.xls	Programs / Databases These require Microsoft Windows 95 or later to run. Aclock.zip  Galsat51.zip Galaxy.zip  Moonphas.zip  Newt25.zip  TUMOL  Utilities Pkzip204g.exe	Images Moon (Detailed Lunar Map) Planets (Images and Physical Properties) Deep Sky Messier Objects
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11/2011