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heavenly bodies is inseparably related to their orbit motion 
by laws of proximate cause, the Author, guided by analogies 
drawn from known mathematical relations of these motions 
in the Jovian system, arrived at the conclusion that the point 
of intersection of the invariable plane of the solar system on 
the solar equator lies in the orbit plane of the sun. 
Adopting the data of Dr. Bbhm, of Vienna, the approxi- 
mate elements of the solar orbit plane for the epoch 1801 
would therefore be as under : — 
Ascending node on the solar equator ... 248°.9 
Inclination on ditto ... 86°. 4 
Motion when referred to ditto retrograde. 
This plane has singular relations to other phenomena. The 
axes of rotation of the sun and major planets are very slightly 
inclined upon it, as under : — 
The Sun 3°.6 
Jupiter 2°.9 
Saturn 0°.8 
Uranus 5°.7 
Neptune 5°.6 
When these rotation axes are projected perpendicularly 
upon the plane, the angle which the axis of each planet forms 
with the axis of the sun increases with the orbit distance of 
the planet, as under : — 
Jupiter 
4°.0 
Saturn 
27°.0 
Uranus 
100°.4 
Neptune 
15U.5 
The plane occupies a mean position among the orbit poles 
of the planets — the most distant on each side of the plane 
are : — 
The Earth 
Mercury . 
3°.3 
3°.2 
