i33

tile

Astronomy.

0 r ^9 r ^ ) i t:s of those Planets lay within the

of the Earth (CXXXIX).

IX. The

XXXIX, What relates to the Conjunctionst>y a jfP°sitions of the Planets will be easily understoodiagram - Let S he the Sun, T the Earth, V’iis evi/ n ^ ^ Mercury, in their several Orbits. NowN, ^ ent that when Venus and Mercury are at V andA** he seen from the Earth T in the samejhey ar Heavens with the Sun, viz. at W, because* S filled ^ posited in one Right Line T W ; and this. r. ^ . Lower or Irtfericr Conjunction,v !t Uati ga ' n " When Venus and Mercury come to theCitie ;°- ns . ^ 2nd O, they are again in the same Rightther e f 0r lllin g the Centres of the Earth and Sun, and arejvith a S a,n seen in the fame Part of the Heavens

PI. LV.

;^r llri1 ; and this is called the Upper or Superior Ccn-Pta r °*\ Here ’tis evident, those two Planets must ap-lut 'ot9‘ Ce Conjunction with the Sun in each Revo-

h r < t t0

, a Spectator on the Earth at T, which we at

3. jr"' 1 '! suppose to be at Rest.

Pf«j, eriCe We have an infallible Proof that the OrbitsEarth S an< ^ Mercury lie both within the Orbit of the'bust si the Orbits al Mars, Jupiter, and SaturnS c ® Without the Orbit of the Earth ; for otherwise[ eri 'ate°o d . not exhibit the Appearance they do of al-hi and Oppositions. Thus let Mars

<5 ’ that at ’t’ s evident when the Earth is at

H*ti, a nrf , net W 'dl be seen in Conjunction with the .Earth_ he then at its greatest Distance from the

4 , g

y w hen the Earth is at t between the Sun andjbe He a 1S P' a in they must appear in opposite Parts ofb t>Nst i ens ’ because a Person at t viewing the Sun at. 1atiet at^ d * re< "Ey to the contrary Part to view the^rels 5 and ’ n this Opposition to the Sun Marstae Sch err , t0 tdlc Earth : All which is so evident from

^ thofp Tj, 6 ’ Rr 'd so exactly agreeable to the Phænomena

ftra« r i anp>J! „ u _ TT b n r _ a

an ge

‘W- ' n the Heavens, that any Person must be0 Innate, and incapable of any Sort of Con-

K 3

viction,