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![]() Date: 2010-09-27 11:24:45Astrometry Physical cosmology Space Cepheid variable W Virginis variable Type II Cepheid Cosmic distance ladder RR Lyrae variable Large Magellanic Cloud Astronomy Variable stars Standard candles | Source URL: www.aavso.orgDownload Document from Source WebsiteFile Size: 199,44 KBShare Document on Facebook |