A

ir

4

f

i

o'

$

¥

ft

¥

f

r»

¥

v

f

¥

■Si

>* ,v !

rfl !v ,

, ^ H ESEthe Solar

^Paffi

STRONOMY.

127

are the constituentSystem, which is

Parts ofnow receivedand

of ’ lt>a ® n g his Body ; which afterwards with a Tubeto/ set he observed more distinfily, and also dis-tin • 3 Satellite revolving about that Planet. 1 his/'«« Satellite is the fourth in Order from Saturn.fifth Ist the Year 1671 Caffini discovered the third andfecal/ d ^ the Year 1686 he hit upon the first andO f«h Tubes of ico and 136 Feet; but couldc/// fee all five with a. Tube of 34 Feet Hek q hefe Satellites Sidera Lodoicea, in Honour of Lotasin whose Reign and Observatory they weie

/‘fevered.

'//th,

C lat ‘on

__ j"- u vered.

,r > rel a / t le Year 1656 Hugens published his DiscoveryHce tr l0n s to Saturn's Ring in the Letters of this Sen‘ a>n :r° kd > v ' l% ’ J ^ nnu t° singitur tenui, plane, nuf-

/'i {j. e ^ >ente ’> a d Eclipticam inclineto ; that is, Sa-t Png t/> T- n ^ a JT ei t b a thin Plane or Ring , no where co-/ H Jd : dy, and inclined to. the Plane. of the Edip-p} ^ijied*! * nc hnation of the Ring to the Ecliptic is de-r° ^out 31 Degrees by Hugens , Roemer ,^‘btive a,n b an L &c. though by a Method not very

t be*p/ ever > since the Plane of the Ring is inclined; s /ff the Earth’s Motion, it is evident when/°Ugh / situated that the Plane of his Ring pastesS Catl / Putth, we can then fee nothing of it; nor/ an,} p 6 / i*- when the Plane passes between the1 ^do/ ^ art h5 the dark Side being then turned to? P r obab] ^ a dark List appears upon the Planet, whichj/sthei]/* 16 Shadow of the Ring. In other Situn-S ' s wost wist appear elliptical more or less; when/ Ce 0n e* 0 ’ leavens appear through the ellipticj/ a p’j a / Side Saturn (which are called the Ansœ ) ;a sccr ; n ‘ Xe d Star was once observed by Dr. Clarke’s

. 6. TL°x T eofthem -

^Pisces rf CS - ° f ' t si e Ring are in 19 0 45' of Virgo■L)un n g Saturn’s Eleliocentric Motion from3 19 1