Benedetti, Giovanni Battista de, Io. Baptistae Benedicti ... Diversarvm specvlationvm mathematicarum, et physicarum liber : quarum seriem sequens pagina indicabit ; [annotated and critiqued by Guidobaldo Del Monte]

Page concordance

< >
Scan Original
221 209
222 210
223 211
224 212
225 213
226 214
227 215
228 216
229 217
230 218
231 219
232 220
233 221
234 222
235 223
236 224
237 225
238 226
239 227
240 228
241 229
242 230
243 231
244 232
245 233
246 234
247 235
248 236
249 237
250 238
< >
page |< < (221) of 445 > >|
    <echo version="1.0">
      <text type="book" xml:lang="la">
        <div xml:id="echoid-div7" type="body" level="1" n="1">
          <div xml:id="echoid-div477" type="chapter" level="2" n="6">
            <div xml:id="echoid-div483" type="section" level="3" n="3">
              <div xml:id="echoid-div488" type="letter" level="4" n="3">
                <pb o="221" rhead="EPISTOLAE." n="233" file="0233" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/163127KK/pageimg/0233"/>
              </div>
              <div xml:id="echoid-div489" type="letter" level="4" n="4">
                <head xml:id="echoid-head368" style="it" xml:space="preserve">Inctrumentum adortum, & occaſum Lunacognoſcendum
                  <lb/>
                qualibet anni die.</head>
                <head xml:id="echoid-head369" xml:space="preserve">AD EVNDEM.</head>
                <p>
                  <s xml:id="echoid-s2757" xml:space="preserve">ECce tibi vir Illuſtriſs.
                    <reg norm="modum" type="context">modũ</reg>
                    <reg norm="conficiendi" type="context">conficiẽdi</reg>
                  inſtrumenti nuper à me
                    <reg norm="inuenti" type="context">inuẽti</reg>
                  , vt tibi ſi
                    <lb/>
                  gnificaui, quo ſcire poſſis fermè in dies, qua hora (de aſtronomicis loquor) ad
                    <lb/>
                  determinatum parallelum & abſque multa ſupputatione, etiam abſque Aſtrolabio
                    <lb/>
                  Luna oriatur
                    <reg norm="occidatque" type="simple">occidatq́;</reg>
                  . </s>
                  <s xml:id="echoid-s2758" xml:space="preserve">In quo inſtrumento poteris etiam videre quo in ſigno Sol,
                    <lb/>
                  & ſæpius itidem Luna permeat, & huiuſce aſpectus cum Sole, atque longitudinem
                    <lb/>
                  diei
                    <reg norm="noctisque" type="simple">noctisq́;</reg>
                  toto anni tempore exactè diſcernere.</s>
                </p>
                <p>
                  <s xml:id="echoid-s2759" xml:space="preserve">Circularis lamina ex argento, aut ære, aliaúe materia paranda eſt, in cu-
                    <lb/>
                  ius ſuperficie ambarum facierum Zodiacus delineabitur, modo inferius depicto,
                    <lb/>
                  deinde pro anno quinque circuli ſibi inuicem
                    <reg norm="concentrici" type="context">cõcentrici</reg>
                  , at reſpectu Zodiaci excen
                    <lb/>
                  trici cęlabuntur in ea, adeo vt vtriuſque centri diſtantia ſit pro .32. parte ſemidia-
                    <lb/>
                  metri concauitatis Zodiaci è regione locis augis, temporis qui noſtra ætate circa ſi-
                    <lb/>
                  nem ſecundi gradus cancri inuenitur, eandem viam, in hoc, ſequuti, quam Stofle-
                    <lb/>
                  rus in dorſo Aftrolabij docet. </s>
                  <s xml:id="echoid-s2760" xml:space="preserve">At nomina menſium media ponantur inter duos
                    <lb/>
                  maiores circulos, poſtea inter ſecundum, & tertium ab vna facierum laminæ, ar-
                    <lb/>
                  cus ſemidiurni, ab altera vero arcus ſeminocturni, per quinos quoſque dies collo-
                    <lb/>
                  centur, ita exactè, vt hic ſubtus videbis. </s>
                  <s xml:id="echoid-s2761" xml:space="preserve">adeo vt numeri dierum & ipſorum dierum
                    <lb/>
                  ſigna ſint in interuallis vicinioribus centro communi dictorum quinque circulorum.</s>
                </p>
                <p>
                  <s xml:id="echoid-s2762" xml:space="preserve">Poſteaquam ab vna & altera
                    <reg norm="facierum" type="context">facierũ</reg>
                  laminæ hæc inſculpra fuerint, aliæ duæ circu
                    <lb/>
                  lares laminæ, magnitudinis ſemidiametri minimi quinque circulorum accipiantur:
                    <lb/>
                  </s>
                  <s xml:id="echoid-s2763" xml:space="preserve">quarum vna pro ortu, & altera pro occaſu Lunæ deſeruiet. </s>
                  <s xml:id="echoid-s2764" xml:space="preserve">In qualibet ipſarum
                    <lb/>
                    <reg norm="conſtituentur" type="context">conſtituẽtur</reg>
                  circuli quatuor, eo modo qui paulo inferius cernitur, quos omnes diui-
                    <lb/>
                  demus in triginta ſpacia æqualia: </s>
                  <s xml:id="echoid-s2765" xml:space="preserve">& in interuallo
                    <reg norm="quod" type="wordlist">qđ</reg>
                  inter duos primos circulos poſi
                    <lb/>
                  tum eſt, triginta dies
                    <reg norm="annotabimus" type="simple">annotabimꝰ</reg>
                  qui ipſos Lunætriginta dies
                    <reg norm="pręſcribent" type="context">pręſcribẽt</reg>
                  , vt in figara.</s>
                </p>
                <p>
                  <s xml:id="echoid-s2766" xml:space="preserve">Poſtmodum in lamina quæ ortus Lunæ indicabit, ac duorum maiorum
                    <reg norm="circulo- rum" type="context">circulo-
                      <lb/>
                    rũ</reg>
                  interuallo è regione numeri .1. videlicet primi diei, ponemus horas .12. & minuta
                    <num value="48">.
                      <lb/>
                    48.</num>
                  ex aduerſo diei ſecundi ho .13. et min .36. ex oppoſito tertij ho 14. min .24. & ſic
                    <lb/>
                  ſucceſſiuè augendo per min .48. & indicem è diuerſo diei .30.
                    <reg norm="ſtatuendo" type="context">ſtatuẽdo</reg>
                  , qui coitus
                    <lb/>
                  Lunæ cum Sole ſigniſicabit: </s>
                  <s xml:id="echoid-s2767" xml:space="preserve">atque lineas aſpectuum, vt inferius videre eſt facilè in
                    <lb/>
                  ueniemus.</s>
                </p>
                <p>
                  <s xml:id="echoid-s2768" xml:space="preserve">Altera in lamina quæ occaſum Lunæ indicabit, poſtquam diſtincta fuerit, vt alte-
                    <lb/>
                  ra .30. dies ac cęteræ lineæ, eo modo quo in ſuperiori collocabuntur, at numeri in-
                    <lb/>
                  terualli maioris, aliter diſponentur, vt potè ex aduerſo diei primi ſolum .48. minu-
                    <lb/>
                  ta deſcribi debent, è directo ſecundi diei ponenda erit hora vna cum minutis .36. &
                    <lb/>
                  è regione tertij inſcribentur .2. horæ, & min .24. & ſic ex ordine per .48. minuta au-
                    <lb/>
                  gendo.</s>
                </p>
                <p>
                  <s xml:id="echoid-s2769" xml:space="preserve">Nunc lamina ortus Lunę, cum anno arcuum ſeminocturnorum, & illa occaſus cum
                    <lb/>
                  anno arcuum ſemidiurnorum
                    <reg norm="concentrari" type="context">concẽtrari</reg>
                  debet, & ita noſtrum inſtrumentum perfe-
                    <lb/>
                  ctum erit & abſolutum.</s>
                </p>
                <p>
                  <s xml:id="echoid-s2770" xml:space="preserve">Quoties igitur voluerimus medio inſtrumento dignoſcere fermè in tali orizonte
                    <lb/>
                  qua hora Luna oriatur, ita neceſſe erit volubilem rotam ortus flectere, ut index ve
                    <lb/>
                  niat è regione diei menſis in quo talis operatio fit & talirota ſirma manente perſpi- </s>
                </p>
              </div>
            </div>
          </div>
        </div>
      </text>
    </echo>