Word: orbiter
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...great gravities of the planets affect each other as they circle around the Sun and make their orbits slightly irregular. It was man's mathematical ability to measure such orbital variations that permitted Astronomer Lowell to declare that an unknown planet was butting Neptune's orbit out of its regularly irregular shape and to predict just where in the heavens a sufficiently powerful telescope, which did not exist during his life, would reveal...
...Observatory has always devoted its of largely to that planet, and the planetary system. Astronomers have long known from the irregularities in the motions of the farthest planets that another existed still farther off. Some years before his death Lowell made some calculations to discover the position and the orbit of that planet, which were published in the proceedings of the American Academy of Arts and Sciences in 1915. Since that time his observatory at Flag-staff has been seeking it in the sky. Seven weeks ago a small object was observed, but it was not until yesterday, after seven...
...Leonids have shown up regularly three times a century for more than a thousand years, but failed to appear when last due at the beginning of the present century. Astronomers suspect that their failure was due to the huge planet Jupiter being too close to their orbit and pulling them off schedule...
Editor Crowell had been faithful to his post. Man and boy, writer and editor, he had labored for the American since he was 27. He is now 40. The War, temporarily interrupting his journalistic orbit, took him as a second lieutenant, left him a major. Carroty-haired down-Easter (from North Newport, Me.), no dilettante, no pedant, he admired teamwork, organization bankers...
...peculiar part of the autogiro is, of course, its four horizontal vanes. Their orbit is 30 ft. in diameter, extending over the tail and beyond the tractor motor...