Is a true Representation of the satellite Systems, proportionable to one another, and to the Orb of the Sun's Body, that a just Idea of the Distances of those secondary Planets, may be easier had from their respective primary ones.
S represents the solar Body with its Atmosphere. Fig. 1. is the System of Saturn from the same Scale. Fig. 2. that of Jupiter from ditto. And Fig. 3. the Orbit of the Moon round the Earth, in the same Proportion.
But as you can have but a very imperfect Idea of the Magnitude of these last Circles, with regard to the Body of the Earth or Moon,
PLATE VII.
Is a true Projection of their real Globes, at their proper Distance from each other, with their common Center of Gravity, and the Point and Line of equal Suspension betwixt them, viz.
A, represents the Globe of the Earth.
B, that of the Moon.
C, Point, and C D, Line of equal Suspension betwixt them.
E, Common Center of Gravity, which describes the Orbis Magnus.
E, F, and B, G, is the Orbit of the Moon.
Farther, that nothing may be wanting to give a true Notion of the whole together,
PLATE VIII.
Is a proportional Drawing of all the primary and secondary Planets together, distinguished by their Characters, proper to attend a Globe of twelve Inches Diameter, such a one being supposed to represent the Sun.