[ 12(^4] 
of % viewed from our Earth. And that if the Paral- 
lax of the Orb were additionall, the fhadow lies on the 
•right hand from if Subdudlive, on the left. 
To explain thefe precepts, I fliall give two brief ex- 
amples. Let it be then propofed to know how far 
each Satellit appears diftant from ifi on the 26th of 
December this pre^ent year idSf, at i<$^ ^2'. p, m. 
when the 3^ Satellit falls into the Shadow alio on July 
the 15. idSd. atip^. 00'. p. m. when there isnoEclipfe. 
Vide Tab. 2. Fig 3. 
1 6^ T.Dec. 25^ id' 
52', p. m. the Parallax of the Orb is 9°. 20'. additional. 
Therefore. 
The fimple Parallaftick Inter- 
val Is Add 
The half duration of the Eclip- 
fes to be Added. 
d h 
I. 05 
I. lo- 
2 
d h ' 
2. 10 
1.50. 
4. 25. 
1. 18 
d h ' 
10. 20 
The Fa ra 1 lad ick 1 nter va l is Aug- 
mented 
Lsfi' InuTierfions and the 
Catalogue. Dec. 
Z. If. 
2^o9. 37. 
3. 4c. 
If. Of. 47. 
19. 12. ;8. 
Ic. 00. 30. 
Times of laftpaffing Jupiters 
Axis Dec 
Subtrafled from the time pro- 
pofed. Dec. 
25. 11, 52. 
16, 16, 52,. 
25.0^ 27. 
26. 16. 52. 
19. 18 .41. 
2<f. i6. 52. 
10. 10. 50. 
26. \6. J 2. 
Leaves the IntervalisofMotion. ■ 
Over wbich nun>bered in 
: their peculiarcircles,thethred 
being feverally layd, cuts the 
f),roper Orbit of each at their 
vifible diltances fromjupiter. 
I. 05. 00. 
Semid 
^ dext. 
u 07. IS 
6. 22.11. 
5. dext. 
1 
16 06. o2> 
4 1 dext. 
Vide Tab. Fig. 4. 
Again, i6%6. July the id. ro\ p. m. the Pajrallax of 
the Orb. is i o^ 46. fubdudive. 
Hence 
The fimple Paralhaick Inter- 
valisJiib. 
Half duration of the Eclipfes 
3dd. 
I.- 
d h ' 
I. I2^ 
a 
2. 35. 
4 
d h ' 
»2. CO, 
I. 10. 
153^0. 
1 " 
ThePar- 
