 | John Lee Comstock - Physics - 1813 - 448 pages
...YEAR. 817. The vicissitudes of the seasons are caused by the annual revolution of the earth around the sun, together with the inclination of its axis...lines crossing the earth, and the obliquity of the ovrbits of the other planets, are to be estimated. 818. The equinoctial line, or the great circle passing... | |
 | Edward Riddle - Nautical astronomy - 1824 - 572 pages
...rotation of the earth on its axis ; and the inequality of the days and the alternations of the seasons, by the inclination of its axis to the plane of its orbit. It is not however the real, but the apparent, motions of the heavenly bodies that are the objects of consideration... | |
 | John Lee Comstock - Physics - 1832 - 308 pages
...proportion. The vicissitudes of the seasons are caused by the annual revolution of the earth around the sun, together with the inclination of its axis to the plane of its orbit. Seasons of the year. It has already been explained, that the ecliptic is the plane of the earth's orbit,... | |
 | John Lee Comstock - Physics - 1835 - 308 pages
...of the year. The vicissitudes of the seasons are caused by the annual revolution of the earth around the sun, together with the inclination of its axis...hence, that this plane is considered the standard, bv which the inclination of the lines crossing the earth, and the obliquity of the orbits of the other... | |
 | John Lee Comstock - Physics - 1835 - 308 pages
...proportion. The vicissitudes of the seasons are caused by the annual revolution of the earth around the sun, together with the inclination of its axis to the plane of its orbit. Seasons of the year. It lias already been explained, that the ecliptic is the plane of the earth's... | |
 | John Lee Comstock - Physics - 1836 - 308 pages
...proportion. The vicissitudes of the seasons are caused by the annual revolution of the earth around the sun, together with the inclination of its axis to the plane of its orbit. Seasons of the year. It has already been explained, that the ecliptic is the plane of the earth's orbit,... | |
 | Thomas Dick - Astronomy - 1838 - 426 pages
...planets have an annual revolution round thesun. This revolution, in the case of the earth, combined with the inclination of its axis to the plane of its orbit, produces the variety of seasons ; and although we are not to suppose that all the planets have seasons... | |
 | Thomas Dick - Astronomy - 1838 - 444 pages
...planets have an annual revolution round the sun. This revolution, in the case of the earth, combined with the inclination of its axis to the plane of its orbit, produces the variety of seasons ; and although we are not to suppose that all the planets have seasons... | |
 | John Lee Comstock - Physics - 1847 - 426 pages
...YEAR. 849. The vicissitudes of the seasons are caused by the annual revolution of the Earth around the Sun, together with the inclination of its axis...by which the inclination of the lines crossing the Eartn, and the obliquity of the orbits of the other planets, are to be estimated. 850. The equinoctial... | |
 | Thomas Dick - Educational sociology - 1850 - 586 pages
...planets have an annual revolution round the sun. This revolution, in the case of the earth, combined with the inclination of its axis to the plane of its orbit, produces the variety of seasons ; and although we arc not to suppose that all the planets have seasons... | |
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It has already been explained, that the ecliptic is the plane of the earth's orbit, and is supposed to be placed on a level with the earth's horizon, and hence, that this plane is considered the standard... 
