The Moon: Her Motions, Aspect, Scenery, and Physical Condition |
Other editions - View all
Common terms and phrases
action actual advance angle anomalistic month apogee appears astronomers axis body bright celestial circle circumstance consider considerations corresponding course craters crust degree descending node diameter direction displacement diurnal motion earth eccentricity ecliptic effects equal equator fact full moon globe gravity greater heat heavens Hipparchus horizon illuminated inclination increase John Herschel law of Kepler less libration light line of nodes lunar atmosphere lunar orbit lunarian M₁ M₂ Mädler maximum mean centre mean distance miles moon's disc moon's distance moon's mass moon's mean moon's motion moon's orbit moon's surface mountains moving nearly Newton normal force observations obvious parallax passing path perigee perturbing force planets Plate portion position present proportion radial force regarded regions regredes regression represented result revolution rising node rotation round seen sidereal sidereal month solar stars sun's supposed tangential force telescope terrestrial theory tion traverses velocity visible volcanic whole
Popular passages
Page i - To the Moon Art thou pale for weariness Of climbing heaven and gazing on the earth, Wandering companionless Among the stars that have a different birth, — And ever changing, like a joyless eye That finds no object worth its constancy?
Page 214 - Behind him cast ; the broad circumference Hung on his shoulders like the moon, whose orb Through optic glass the Tuscan artist views At evening from the top of Fesole Or in Valdarno, to descry new lands, Rivers, or mountains, in her spotty globe.
Page 325 - As when in heaven the stars about the moon Look beautiful, when all the winds are laid, And every height comes out, and jutting peak And valley, and the immeasurable heavens Break open to their highest, and all the stars Shine, and the Shepherd gladdens in his heart...
Page 350 - Beyond the second ridge a talus slopes gradually down north ward» to the general level of the lunar surface, the whole presenting an appearance reminding the observer of the concentric moraines of the Rhone glacier. These ridges are visible for the whole period during which that portion of the moon's surface is illuminated, but it is only about the third day after the first quarter and at the corresponding phase of the waning moon (when the sun's rays falling nearly horizontally, throw the details...
Page 6 - If I beheld the sun when it shined, Or the moon walking in brightness; And my heart hath been secretly enticed, Or my mouth hath kissed my hand; This also were an iniquity to be punished by the judge: For I should have denied the God that is above.
Page 368 - As the solid crust sinks together to follow down after the shrinking nucleus, the work expended in mutual crushing and dislocation of its parts is transformed into heat, by which, at the places where the crushing sufficiently takes place, the material of the rock so crushed and of that adjacent to it are heated even to fusion. The access of water to such points determines volcanic eruption.
Page 350 - ... the north. Beyond the second ridge a talus slopes gradually down northwards to the general level of the lunar surface, the whole presenting an appearance reminding the observer of the concentric moraines of the Rhone glacier. These ridges are visible for the whole period during which that portion of the moon's surface is illuminated ; but it is only about the third day after the first quarter, and at the corresponding phase of the waning moon, when the sun's rays, falling nearly horizontally,...
Page 349 - ... and streaks of the lunar surface, are not improbably due to former glacial action. Notwithstanding the excellent definition of modern telescopes, it could not be expected that other than the most gigantic of the characteristic details of an ancient glacier bed would be rendered visible. What...