national academy of sciences Harlow Shapley 1885—1972

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Date: 2012-10-12 14:06:01 Standard candles Harlow Shapley Variable stars Star types Local Group Globular cluster Frederick Hanley Seares Henrietta Swan Leavitt RR Lyrae variable Astronomy Astrometry Space		national academy of sciences Harlow Shapley 1885—1972 Add to Reading List Source URL: www.nasonline.org Download Document from Source Website File Size: 2,66 MB Share Document on Facebook

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