Planet Motion Small 320×281 Medium 640×562 Large 1024×899 Download Tiff Original 2400×2107 | (288.3 KB) Description "Circular Motion of the Planets." —Comstock, 1850 Keywords earth, herschel, Jupiter, Mars, Mercury, Orbit, Planet, saturn, size, solar, sun, system, Venus Galleries Astronomy Source: J. L. Comstock A System of Natural Philosophy: Principles of Mechanics (: Pratt, Woodford, and Company, 1850) 296
