...and nights at the equator are always equal. Thus, the different seasons are clearly accounted for, by the inclination of the axis of the earth to the plane of its orbit, combined with the parallel motion of that axis. Of the Solar System. Plate XXL Fig. II....

...such, the sphere would appear parallel. As the limits of the zones and of the climates depend upon the inclination of the axis of the earth to the plane of the ecliptic, it is of importance to determine this inclination. We may easily discover it by observing at one and...

...such, the sphere would appear parallel. As the limits of the zones and of the climates depend upon the inclination of the axis of the earth to the plane of the ecliptic, it is of importance to determine this inclination. We may easily discover it by observing at one and...

...period it returns to the point of its orbit, from which it began its course. The seasons are produced by the inclination of the axis of the earth to the plane of its orbit; and their unequal length, that is, that summer is somewhat longer than winter, proceeds...

...in what manner the changes of the seasons, the increase and decrease of the days, &C., are caused by the inclination of the axis of the earth to the plane of the ecliptic, at an angle of 664 degrees, and how the axis, by remaining parallel to itself in all points of its...

...given time than at others, so that the solar days cannot be equal. Auother circumstance, dependent upon the inclination of the axis of the earth to the plane of the ecliptic, is also tobe taken into the account. The apparent solar time, therefore, is distinguished from mean...

...tinis than at others, so that the solar days rnitnot be equal. Another circumstance, dependent upon the inclination of the axis of the earth to the plane of the ecliptic, is nlso to he taken into the account. The apparaît solar time, therefore, is distinguishn 1 from mean...

...period, it returns to the point of its orbit, from which it began its course. The seasons are produced by the inclination of the axis of the earth to the plane of its orbit ; and their unequal length, that is, that summer is somewhat longer than winter, proceeds...

...period, it returns to the point of Us orbit, from which it began its course. The seasons are produced by the inclination of the axis of the earth to the plane of its orbit ; and their unequal length, that is, that summer is somewhat longer than winter, proceeds...

...afterwards completely established by the incomparable Sir Isaac Newton. VARIATIONS OF THE SEASONS. or King Richard the Secon'J, Thomas of Woodstock, &c. Hence or level of its orbit, that occasions the variations of the seasons. It is easy to be shown, that the...