 | David Jennings - 1766 - 218 σελίδες
...their Magnitudes, and Velocities. Sit the Pbilofopbtcal Tranfatfi 'tins, Vel 53, tit the lefinning. The Axis of the Earth is inclined to the Plane of the Ecliptic, making v it'a it an Angle of 66 i Degrees, or with a Perpendicular to the Plane of the Ecliptic, an... | |
 | Jacques Ozanam - 1803 - 660 σελίδες
...that in the course of ages there will be another polar star, and even others after that in succession. The axis of the earth is inclined to the plane of the eclip ic, at present, in an angle of 23° 28', and some seconds, which causes the inclination' of the... | |
 | George Adams - 1812 - 552 σελίδες
...polar circles are two lesser circles, conceived to be described at 23? degrees distance from each pole. The axis of the earth is inclined to the plane of the ecliptic, and makes with it an angle of 66^ degrees ; therefore, the plane of the earth's equator cannot coincide with... | |
 | George Adams - 1812 - 586 σελίδες
...polar circles are two lesser circles, conceived to be described at 23? degrees distance from each pole. The axis of the earth is inclined to the plane of the ecliptic, and makes with it an angle of 66± degrees ; therefore, the plane of the earth's, equator cannot coincide with... | |
 | Jacques Ozanam, Jean Etienne Montucla - 1814 - 520 σελίδες
...that in the course of ages there will be another polar star, and even others after that in succession. The axis of the earth is inclined to the plane of the ecliptic, at present, in an angle of 23° 28', and some seconds, which causes the inclination of the ecliptic... | |
 | Edward T W. Polehampton - 1815 - 568 σελίδες
...equinox about the year 6483. A complete tropical revolution of the apsides is performed in 20g3 1 years. The axis of the earth is inclined to the plane of the ecliptic in ah angle of 23° If 5f,0; which'angle is observed to decrease at the rate of 52", 1 in a century.... | |
 | William Nicholson - 1819 - 370 σελίδες
...occasions the diversity of seasons. To understand this, we must observe, what has been already mentioned, that the axis of the earth is inclined to the plane of its orbit 23J°, and it keeps always parallel to itself; that is, it is always directed to the same... | |
 | William Nicholson - 1819 - 376 σελίδες
...occasions the diversity of seasons. To understand this, we must observe, what has been already mentioned, that the axis of the earth is inclined to the plane of its orbit 23£°, and it keeps always parallel to itself; that is, it is always directed to the same... | |
 | Alexander Jamieson - 1821 - 448 σελίδες
...365 d 6 h 9' 11" 5; and it passes from the one tropic, to the same again is only 365<> 5 h 48' 51" 6. The axis of the earth is inclined to the plane of the ecliptic in an angle of 23° 27' 57",0; but this angle decreases at the rate of 52",1 in a century. Yet this... | |
 | Robert Woodhouse - 1821 - 1068 σελίδες
...inclined to the plane of the equator, and (which is only to repeat the same thing in different words) the axis of the Earth is inclined to the plane of the Earth's orbit. This point enables us at once to explain the vicissitudes of the seasons, and the different... | |
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To understand this, we must observe, what has been already mentioned, that the axis of the earth is inclined to the plane of its orbit 23J°, and it keeps always parallel to itself; that is, it is always directed to the same star. 
