Newton, Isaac, Philosophia naturalis principia mathematica, 1713

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                  <s>In hunc finem computandæ ſunt igitur Cometarum plurium
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                  Traiectoriæ, ex hypotheſi quod ſint Parabolicæ. </s>
                  <s>Nam hujuſ­
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                  modi Trajectoriæ cum Phænomenis ſemper congruent quam­
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                  proxime. </s>
                  <s>Id liquet, non tantum ex Trajectoria Parabolica Co­
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                  metæ anni 1680, quam cum obſervationibus ſupra contuli, ſed
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                  etiam ex ea Cometæ illius inſignis, qui annis 1664 & 1665 appa­
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                  ruit, & ab
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                  Hevelio
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                  obſervatus fuit. </s>
                  <s>Is ex obſervationibus ſuis
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                  longitudines & latitudines hujus Cometæ computavit, ſed minus
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                  accurate. </s>
                  <s>Ex iiſdem obſervationibus,
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                  Halleius
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                  noſter loca Co­
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                  metæ hujus denuo computavit, & tum demum ex locis ſic inven­
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                  tis Trajectoriam Cometæ determinavit. </s>
                  <s>Invenit autem ejus No­
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                  dum aſcendentem in II 21
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                  gr.
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                  13′. </s>
                  <s>55″, Inclinationem Orbitæ ad
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                  planum Eclipticæ 21
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                  gr.
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                  18′. </s>
                  <s>40″, diſtantiam Perihelii a Nodo in
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                  Orbita 49
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                  gr.
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                  27′. </s>
                  <s>30″. </s>
                  <s>Perihelium in 8
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                  gr.
                    <emph.end type="sup"/>
                  40′. </s>
                  <s>30′ cum Lati­
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                  tudine auſtrina heliocentrica 16
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                  gr.
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                  1′. </s>
                  <s>45″. </s>
                  <s>Cometam in Perihelio
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                    <emph type="italics"/>
                  Novemb.
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                  24
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                  d
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                  . </s>
                  <s>11
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                  h
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                  . </s>
                  <s>52′. </s>
                  <s>P. M. tempore æquato
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                  Londini,
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                  vel 13
                    <emph type="sup"/>
                  h
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                  . </s>
                  <s>8′
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                    <emph type="italics"/>
                  Gedani,
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                  ſtylo veteri, & Latus rectum Parabolæ 410286, exiſtente
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                  mediocri Terræ a Sole diſtantia 100000. Quam probe loca
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                  Cometæ in hoc Orbe computata, congruunt cum obſervationibus,
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                  patebit ex Tabula ſequente ab
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                  Halleio
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                  ſupputata.
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                  </s>
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