...Of course, I'm trying to keep within the orbit of theEarth, but there is a danger of being deflected onto Pallas, Ceres, orone of the smaller asteroids, and finding ourselves upon a rock inspace... 
Various 「Astounding Stories of Super-Science, May, 1930」
...The lanes more frequently used, between Earth, Mars, Venus andMercury, were of course far inside the orbits of the asteroids...
John Stewart Williamson 「Salvage in Space」
...Like Earth, and all other known planets, satellites, cometsand asteroids, she was subject now to all the normal natural laws ofcelestial mechanics...
Raymond King Cummings 「Wandl the Invader」
...A group of four asteroids has lately been found, with a mean distance andperiod equal to that of Jupiter...
George Forbes 「History of Astronomy」
...But at aphelionit retreats deep into the region of the asteroids, and is much more thanfour times the mean distance of the Earth...
E. Walter Maunder 「Are the Planets Inhabited?」
...Of the physical composition of the asteroids and of the character oftheir surfaces we are entirely ignorant...
Robert Stawell Ball 「The Story of the Heavens」
...It has been calculated that the total mass of the asteroids must bemuch less than one-quarter that of the earth...
Cecil G. Dolmage 「Astronomy of To-day」
...The orbits of the asteroids are by no means inthe one plane, that of Pallas being the most inclined to the plane ofthe earth's orbit...
Cecil G. Dolmage 「Astronomy of To-day」
...Two notable theories have been put forward to account for the origin ofthe asteroids...
Cecil G. Dolmage 「Astronomy of To-day」
...No more asteroids were discovered till 1845, but there are nowseveral hundreds known...
Oliver Lodge 「Pioneers of Science」
...Ithas seven hundred times the mass of all the planets, asteroids,and satellites put together...
Henry Warren 「Recreations in Astronomy」
...Subtract 35,000,000 miles next to Mars and 50,000,000 miles nextto Jupiter, and there is left a zone 254,000,000 miles wide outsideof which the asteroids never wander...
Henry Warren 「Recreations in Astronomy」
...
Perturbation, the effect of the attractions of the planetsor otherbodies upon each other, disturbing their regular motion; of Saturnand Jupiter, ; of asteroids,; of Uranus and Neptune,...
Henry Warren 「Recreations in Astronomy」
...The next one was notdiscovered until 1845, from which date asteroids, or minor planets (as thesesmall planets are called), have been found almost every year...
George Forbes 「History of Astronomy」
ランダム例文：
sane strangling Norton
便利！手書き漢字入力検索