ISBN: 1231130261

[EAN: 9781231130261], Neubuch, HARRIET ERNESTINE RIPLEY,HISTORY, This item is printed on demand. Paperback. This historic book may have numerous typos and missing text. Purchasers can dow… Mehr…

[EAN: 9781231130261], Neubuch, HARRIET ERNESTINE RIPLEY,HISTORY, This item is printed on demand. Paperback. This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1837 Excerpt: . . . slipping away from the preceding, and the traces of successive revolutions forming a sort of band of network running round the middle of the sky. In each revolution, the motion in longitude is affected by an anomaly of the same nature as the suns anomaly already spoken of; but besides this, the path of the moon deviates from the ecliptic to the north and to the south of the ecliptic, and thus she has a motion in latitude. This motion in latitude is sufficiently known if we knew the period of its restoration, that is, the time which the moon occu 2 The reader will find an attempt to make the nature of this path generally intelligible in the Companion to the British Almanacc for 1834. I . tions with regard to the anomaly. This difference could be suitably represented by supposing the eccentric, in which the moon moves, to have itselr an angular motion, perpetually carrying its apogee in the same direction in which the moon travels; but this supposition being made, it was necessary to determine, not only the eccentricity of the orbit, and place of the apogee at a certain time, but also the rate of motion of the apogee itself, in order to form tables of the moon. This task, as we have said, Hipparchus executed; and in this instance, as in the problem of the reduction of the suns motion to tables, the data which he found it necessary to employ were very few. He deduced all his conclusions from six eclipses of the moon. Three of these, the records of which were brought from Babylon, where a register of such occurrences was kept, happened in the 366th and 367th ydars from the era of Nabonassar, and enabled Hipparchus to determine the eccentricity and apogee of the moons orbit at that time. The three others were observed. . . This item ships from La Vergne,TN.<

2012, ISBN: 1231130261

[EAN: 9781231130261], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****. This historic book may have numerous typos and missing text. Purchasers … Mehr…

[EAN: 9781231130261], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****. This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1837 Excerpt: .slipping away from the preceding, and the traces of successive revolutions forming a sort of band of network running round the middle of the sky . In each revolution, the motion in longitude is affected by an anomaly of the same nature as the sun s anomaly already spoken of; but besides this, the path of the moon deviates from the ecliptic to the north and to the south of the ecliptic, and thus she has a motion in latitude. This motion in latitude is sufficiently known if we knew the period of its restoration, that is, the time which the moon occu 2 The reader will find an attempt to make the nature of this path generally intelligible in the Companion to the British Almanac/c for 1834. I . tions with regard to the anomaly. This difference could be suitably represented by supposing the eccentric, in which the moon moves, to have itselr an angular motion, perpetually carrying its apogee in the same direction in which the moon travels; but this supposition being made, it was necessary to determine, not only the eccentricity of the orbit, and place of the apogee at a certain time, but also the rate of motion of the apogee itself, in order to form tables of the moon. This task, as we have said, Hipparchus executed; and in this instance, as in the problem of the reduction of the sun s motion to tables, the data which he found it necessary to employ were very few. He deduced all his conclusions from six eclipses of the moon. Three of these, the records of which were brought from Babylon, where a register of such occurrences was kept, happened in the 366th and 367th ydars from the era of Nabonassar, and enabled Hipparchus to determine the eccentricity and apogee of the moon s orbit at that time. The three others were observed.<

2012, ISBN: 1231130261

[EAN: 9781231130261], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing text. Purchasers c… Mehr…

[EAN: 9781231130261], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1837 Excerpt: .slipping away from the preceding, and the traces of successive revolutions forming a sort of band of network running round the middle of the sky . In each revolution, the motion in longitude is affected by an anomaly of the same nature as the sun s anomaly already spoken of; but besides this, the path of the moon deviates from the ecliptic to the north and to the south of the ecliptic, and thus she has a motion in latitude. This motion in latitude is sufficiently known if we knew the period of its restoration, that is, the time which the moon occu 2 The reader will find an attempt to make the nature of this path generally intelligible in the Companion to the British Almanac/c for 1834. I . tions with regard to the anomaly. This difference could be suitably represented by supposing the eccentric, in which the moon moves, to have itselr an angular motion, perpetually carrying its apogee in the same direction in which the moon travels; but this supposition being made, it was necessary to determine, not only the eccentricity of the orbit, and place of the apogee at a certain time, but also the rate of motion of the apogee itself, in order to form tables of the moon. This task, as we have said, Hipparchus executed; and in this instance, as in the problem of the reduction of the sun s motion to tables, the data which he found it necessary to employ were very few. He deduced all his conclusions from six eclipses of the moon. Three of these, the records of which were brought from Babylon, where a register of such occurrences was kept, happened in the 366th and 367th ydars from the era of Nabonassar, and enabled Hipparchus to determine the eccentricity and apogee of the moon s orbit at that time. The three others were observed.<