Wilkins, John, A discovery of a new world : or a discourse tending to prove, that 'tis probable there may be another Habitable World in the Moon ; with a discourse concerning the Probability of a Passage thither; unto which is added, a discourse concerning a New Planet, tending to prove, that 'tis probable our earth is one of the Planets

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That the Earth may be a Planet.
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            <s xml:space="preserve">
              <pb o="91" file="0271" n="271" rhead="That the Earth may be a Planet."/>
            ſine accidente augere, (ſaith Kepler.) </s>
            <s xml:space="preserve">His
              <lb/>
            meaning is, that ’tis leſs abſurd to imagine
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            the eighth Sphere of ſo vaſt a bigneſs, as
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            long as ’tis without motion, or at leaſt,
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            has but a very ſlow one; </s>
            <s xml:space="preserve">than to attribute
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            unto it ſuch an incredible celerity, as is
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            altogether diſproportionable to its big-
              <lb/>
            neſs.</s>
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          </p>
          <p>
            <s xml:space="preserve">2. </s>
            <s xml:space="preserve">’Tis the acknowledgment of Clavius,
              <lb/>
              <anchor type="note" xlink:label="note-0271-01a" xlink:href="note-0271-01"/>
            and might eaſily be demonſtrated, That if
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            the Centre were faſtned upon the Pole of
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            the World, the Orb wherein he ſuppoſes
              <lb/>
            the Sun to move, would not be able to reach
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            ſo far in the eighth Sphere, (being conſi-
              <lb/>
            dered according to Ptolomy's Hypotheſis) as
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            to touch the Pole-ſtar: </s>
            <s xml:space="preserve">which notwith-
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            ſtanding (ſaith he) is ſo near the Pole it
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            ſelf, that we can ſcarce diſcern it to move:
              <lb/>
            </s>
            <s xml:space="preserve">Nay, that Circle which the Pole-ſtar makes
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            about the Pole, is above four times bigger
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            than the Orb of the Sun. </s>
            <s xml:space="preserve">So that according
              <lb/>
            to the opinion of our Adverſaries, though
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            our Earth were at that diſtance from the
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            Centre, as they ſuppoſe the Sun to be, yet
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            would not this Excentricity make it nearer to
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            any one part of the Firmament, than the
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            Pole-ſtar is to the Pole, which according to
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            his confeſſion, is ſcarce ſenſible. </s>
            <s xml:space="preserve">And there-
              <lb/>
            fore according to their opinion, it would
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            cauſe very little difference in the appearance
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            of thoſe Stars, the biggeſt of which does
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            not ſeem to be of above five Seconds in its
              <lb/>
            Diameter.</s>
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            <note position="right" xlink:label="note-0271-01" xlink:href="note-0271-01a" xml:space="preserve">Comment.
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            in sphær.
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            cap. 1.</note>
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