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  • Jupiter
  • Jupiter


    Let us bow respectfully before Jupiter, the giant of the worlds. This glorious planet is indeed King of the Solar System. While Mercury measures only 4,750 kilometers (2,946 miles) in diameter, and Mars 6,728 kilometers (4,172), Jupiter is no less than 140,920 kilometers (87,400 miles) in breadth; that is to say, eleven times larger than…

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  • Star Clusters in Hurcules


    Smaller than either star-clouds or star-swarms, and differing from both in their organization, are star-clusters. These, unlike the others, are found outside as well as inside the Milky Way, although they are more numerous inside its boundaries than elsewhere. The term star-cluster is sometimes applied, though improperly, to assemblages which are rather groups, such, for…

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  • Star Clusters in Hurcules