Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
places in the heavens, for which reason they are calledplanets; while those luminous bodies which are called fi-xed stars ap-pear to preserve the same relative position. Primary planets.—There are ninety-three primary planets;eighty-five of which revolve in orbits very near each other,… … The other eight of the primariesare, beginning with the one nearestto the Sun, Mercury, Venus, Earth,Mars (Asteroids), Jupiter, Saturn,Uranus, Neptune. Satellites or moons.—Therehave been discovered twenty second-aries or satelHtes. Of these, theearth has one, Jupiter four, Saturneight (and two…
Physics · Astronomy
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