Newton, Isaac, Philosophia naturalis principia mathematica, 1713

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                  <s>
                    <pb xlink:href="039/01/490.jpg" pagenum="462"/>
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                  tem gradibus declinaſſe dicit. </s>
                  <s>Et cognita curſus poſitione, lon­
                    <lb/>
                  gitudines Cometæ ex obſervationibus collectæ, ad incudem jam
                    <lb/>
                  revocari poſſunt & melius nonnunquam determinari, ut ſit in ſe­
                    <lb/>
                  quentibus.
                    <emph type="italics"/>
                  Cellius
                    <emph.end type="italics"/>
                  Novemb. </s>
                  <s>17. obſervavit diſtantiam Cometæ a
                    <lb/>
                  Spica , æqualem eſſe diſtantiæ ejus a ſtella lucida in dextra ala
                    <lb/>
                  Corvi: & hinc locandus eſt Cometa in interſectione hujus circuli
                    <lb/>
                  quem Cometa motu apparente deſcripſit, cum circulo maximo
                    <lb/>
                  qui a fixis illis duabus æqualiter diſtat, atque adeo in 7
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  54′,
                    <lb/>
                  cum latitudine auſtrali 43′. </s>
                  <s>Præterea
                    <emph type="italics"/>
                  Montenarus, Novemb.
                    <emph.end type="italics"/>
                  20.
                    <lb/>
                  hora ſexta matutina
                    <emph type="italics"/>
                  Venetiis,
                    <emph.end type="italics"/>
                  Cometam vidit non totis quatuor
                    <lb/>
                  gradibus diſtantiam a Spica; dicitque hanc diſtantiam, vix æquaſſe
                    <lb/>
                  diſtantiam ſtellarum duarum lucidarum in alis Corvi, vel duarum
                    <lb/>
                  in juba Leonis, hoc eſt 3
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  & 30′ vel 32′. </s>
                  <s>Sit igitur diſtantia
                    <lb/>
                  Cometæ a Spica 3
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  30′, & Cometa locabitur in 22
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  48′, cum
                    <lb/>
                  latitudine auſtrali 1
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  30′. </s>
                  <s>Adhæc
                    <emph type="italics"/>
                  Montenarus, Novemb.
                    <emph.end type="italics"/>
                  21, 22,
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                  24 & 25 ante ortum Solis, Sextante æneo quintupedali ad mi­
                    <lb/>
                  nuta prima & ſemiminuta diviſo & vitris Teleſcopicis armato,
                    <lb/>
                  diſtantias menſuravit Cometæ a Spica 8
                    <emph type="sup"/>
                  gr
                    <emph.end type="sup"/>
                  28′, 13
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  10′, 23
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                    <lb/>
                  30′, & 28
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  13′: & has diſtantias, per refractionem nondum cor­
                    <lb/>
                  rectas, addendo longitudini Spicæ, collegit Cometam his tempo­
                    <lb/>
                  ribus fuiſſe in 27
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  51′, 2
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  33′, 12
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  52′ & 17
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  45′. </s>
                  <s>
                    <lb/>
                  Si diſtantiæ illæ per refractiones corrigantur, & ex diſtantiis cor­
                    <lb/>
                  rectis differentiæ longitudinum inter Spicam & Cometam probe
                    <lb/>
                  deriventur, locabitur Cometa his temporibus in 27
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  52′,
                    <lb/>
                  2
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  36′, 12
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  58′ & 17
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  53′ circiter. </s>
                  <s>Latitudines au­
                    <lb/>
                  tem ad has longitudines in via Cometæ captas, prodeunt 1
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  45′,
                    <lb/>
                  1
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  58′, 2
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  22′ & 2
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  31′. </s>
                  <s>Harum quatuor obſervationum ho­
                    <lb/>
                  ras matutinas
                    <emph type="italics"/>
                  Montenarus
                    <emph.end type="italics"/>
                  non poſuit. </s>
                  <s>Priores duæ ante ho­
                    <lb/>
                  ram ſextam, poſteriores (ob viciniam Solis) poſt ſextam factæ
                    <lb/>
                  videntur. </s>
                  <s>Die 22, ubi Cometa ex obſervatione
                    <emph type="italics"/>
                  Montenari
                    <emph.end type="italics"/>
                  loca­
                    <lb/>
                  tur in 2
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  36′,
                    <emph type="italics"/>
                  Hookius
                    <emph.end type="italics"/>
                  noſter eundem locavit in 3
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  30′
                    <lb/>
                  ut ſupra.
                    <emph type="italics"/>
                  Montenarus
                    <emph.end type="italics"/>
                  in defectu,
                    <emph type="italics"/>
                  Hookius
                    <emph.end type="italics"/>
                  in exceſſu erraſſe viden­
                    <lb/>
                  tur. </s>
                  <s>Nam Cometa, ex ſerie obſervationum, jam fuit in 3
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  56′
                    <lb/>
                  vel 3
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  circiter. </s>
                </p>
                <p type="margin">
                  <s>
                    <margin.target id="note491"/>
                  DE MUNDI
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                  SYSTEMATE</s>
                </p>
                <p type="main">
                  <s>Obſervationum ſuarum ultimam inter vapores & diluculum
                    <lb/>
                  captam,
                    <emph type="italics"/>
                  Montenarus
                    <emph.end type="italics"/>
                  ſuſpectam habebat. </s>
                  <s>Et
                    <emph type="italics"/>
                  Cellius
                    <emph.end type="italics"/>
                  eodem tem­
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                  pore (id eſt,
                    <emph type="italics"/>
                  Novem.
                    <emph.end type="italics"/>
                  25) Cometam per ejus Altitudinem & Azi­
                    <lb/>
                  muthum locavit in 15
                    <emph type="sup"/>
                  gr.
                    <emph.end type="sup"/>
                  47′, cum latitudine auſtrali quaſi gra­
                    <lb/>
                  dus unius Sed
                    <emph type="italics"/>
                  Cellius
                    <emph.end type="italics"/>
                  obſervavit etiam eodem tempore, quod
                    <lb/>
                  Cometa erat in linea recta cum ſtella lucida in dextro ſemore</s>
                </p>
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