A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 35
. Of what does Part II. treat ? What meant by the Solar System ? Ineludes what ? 23. What is the sun ? 24. Describe the planets. (The term ?) The orbit of a planet ? 25. How planets divided ? Describe each. (What other names for secon-daries ?) 30 ASTRONOMY. that revolve not only around the sun,… … In this cut, the sun may be seen in the center. The white circles are the Orbitsof the primary planets. The planets may be seen in those orbits at various distancesfrom the sun. The numerous orbits so close together are those of the Asteroids. Thesecondary planets may be seen near their respective…
Astronomy
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