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Searching Rudolf Steiner Lectures by GA number (GA0323)
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  • Title: Astronomy Course: Lecture IV
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    • have eccentric orbits, — they describe ellipses. This
    • eccentric orbits and describe ellipses, in one focus of which
    • its own orbital plane. Although the planets carry out their
    • yet for each planet there is the distinct plane of its orbit,
    • an orbital plane of a planet
    • upon the picture of the planets moving in eccentric orbits,
    • the orbital planes being inclined at varying degrees to the
    • two thought-pictures, — that the orbital planes of the
    • equator, and that the orbits are eccentric ellipses, —
    • We have said that the planes of the planetary orbits are
    • planets cross the point of intersection of their orbits (with
    • in face of the reality. For if an orbit is inclined at one
    • agree that this mutability of the eccentric orbits, and of
    • the mutual inclination of the planes of the orbits, must
    • and contracting, the planes of the orbits ascending,
  • Title: Astronomy Course: Lecture VIII
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    • orbits can be brought into accord with the force of gravity
  • Title: Astronomy Course: Lecture XII
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    • solar orbit in some way coincide, and the Earth somehow
    • orbits. For as you know from Kepler's Second Law, an
    • essential feature, on which the forms of the orbits depend,
  • Title: Astronomy Course: Lecture XIII
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    • to represent the orbits of the planets; he would really think
    • of them as representing the true orbits. In purely
  • Title: Astronomy Course: Lecture XVII
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    • moving in a certain sense in the identical orbit and yet
    • are the orbit of Saturn, the orbit of Jupiter, the orbit of
    • Mars, the orbit of the Earth with the Moon, the orbit of
    • Venus, the orbit of Mercury, and the Sun. Somewhere along
    • these orbits we should then find the respective planets. Let
    • — the elliptic orbits of the planets, the Sun
    • in one focus, and so on. The planetary orbits are then
  • Title: Astronomy Course: Lecture XVIII
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    • orbit. We, with the Earth, are in the Lunar Sphere.



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