( « 5 « ) >

.1

'XVIII. i. Per plures Congruentes Observationes Lunare: Sc aliorum pia- u{ i f n c 1 v ..‘ I,enetarum inveni, Distantiam Civitatis Hispalensis Longitudinariam este ab V- burg; fc» . .raniburgo 90', sive vel intra 2/ Differentem. Math. Wo-,

Math. Wo-sessor at Se-

nuui^u - ‘i i •-.- - -- sessor at Se-

a. Videat D. Profejsor quomodo Meridiani Hispalensis ab Vraniburgico In- ville.»’ n9.- 1stitium Scrupulorum 9c/ constituerit: Deliquii enim Lanaris Observa-/- W-i.unes 7 an. if. 1675". Londini Mediurh ponunt 7^ 1 fs p.m. cui Anpota- n? M>.Fic-tiones Varsinee consentiunt; dicti Profejsor is Observationes' Medium Hispali sta- '''tuunt 6* 1 47 / : Noftrorum ergo Meridianorum Dijserentia 24/4 : At Nos in -vid.fnf.C-tf.ter & Vraniburgum non intercedunt nili Minuta 72'. Est igitur Meridiano- IV - §• XLI ' ■rum Differentia nonnisi i h 16'j inter Hispalim & Vraniburgum. Vereor ta- 'men, annon Oculis nudis D. Professoris^ factx suerint Observationes: hteideu- >»,

ti£ quippe &C Emersionis Tempora faciunt i h 7' ; 'aim .Nostne, Parsina 1, Ile- ■* • ■

velianxquc ■ Observationes non faciant ea Tempora plus quam 1 1 ' Pj-, forsanaliquanto minus. ,,

XIX. Differentia Meridianorum Hafni.e & Parisiorum, Observationibus Jo- r««?. of Co-

i vialium , reperta est a D. Picard , o h 41' 40^. m."P iwrd! J

».14 6-F- ! 4 S-

XX. An. 1680. OB. 25. St. v. Sijos Ponthia, and Marco Antonio Cellio Long. 0 / Rom<with a Telefcope of 27 Palms, Observed tbe Total Immersion of the First Sa-

tollite into Jupiters Shadow at Rome, at io’ 1 / 73". p. m. which in our FUmsteed.Observatory here I noted at 9’’ 17' 41", whose Difference is the Differente 177-of our Meridians = 72 / I2 ,/ , or 13 0 03'. Again, Jan. 28. 1687. S.

Francis Blanchini Observed the Total Immersion os the First at ffotne, at Iih !()'+which I saw not here, but my Numbers give at io* 1 27'^. ThereforetheDifference of Meridians is y2 , J-, and Home lies lo much more Eaftcrly thanthe Obfcrvatory of Greemoich ; agreeing with the former Observation.

The Noble Tycha judged therefore not much amiss, when he placed Vrani-hurg and Rome under the fame Meridian ; for by several Observations of Sa-tellite Eclipses it is Evident, that the Difference of Meridians betwixt Vrani-hurg and our Observatory is 7 V 10" of Time, so that Rome lies only oneMinute of Time, or 4 of a Deg. to the East of Vraniburg.

XXI. 1. Dantsicb. is by many and undoubted Observations proved to bel h 17' 30". more Easterly than London.

2. An. 1683. Die ipso Solstitii ALstivi 21 Junii st. n. Gedani, Altitudo Sa-lis in Meridie fuit 79 0 y 1 , Quadrante quidem parvulo Orich. sed tamen satisaccurato. Die vero /EquinofhU Autumnalis Altitudo Solis in Meridie repertaest 37 0 2 y’.

215.

Long. of Dant-zick; by Mr.Halley. Pb.

Coi. n.

Lat.of Dant,zick , by M.Hevelius.

». 151* f- 33 °n. 154 ,p. 424.

XXII. The Longitude of Kurcmburg has been formerly stated n° from Long .»/ Nu-

' — J r • ' 1 ^ • — " ‘ ' - rembure;

b .

»,182. p. 147'

__ vi * «v«« uuo uwii iiiucu i i v rrora

London , and since found to be so by Observations of the Eclipse of theSun July x d . 1684, which made it 44^ of Time.

Ooo O 2

XXIII.

f

0