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Date: 2010-10-21 12:25:41Standard candles Regiomontanus American Astronomical Society Almagest Fritz Zwicky European Southern Observatory Supernova Amateur astronomy Arthur Eddington Astronomy Science Space | HxAxD NEWS The Newsletter of the Historical Astronomy Division of the American Astronomical Society Number 60 HAD ElectionsAdd to Reading ListSource URL: had.aas.orgDownload Document from Source WebsiteFile Size: 1,32 MBShare Document on Facebook |