John Frederick William Herschel eBooks
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A New General Catalogue of Nebulae and Clusters of Stars, Being the Catalogue of the Late Sir John F. W. Herschel. E-book. Formato PDF
John Frederick William Herschel
edizioni Forgotten Books collana , 2017
In the case of form, the scale was supposed arranged in the order: round, very little extended, elliptic or oval, considerably extended, pretty much extended, much extended, very much extended, extremely extended.