A Treatise On Astronomy Theoretical And Practical volume 12
A Treatise On Astronomy Theoretical And Practical volume 12
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In our eReader you can find the full English version of the book. Read A Treatise On Astronomy Theoretical And Practical volume 12 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Treatise On Astronomy Theoretical And Practical volume 12
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The disproportion, therefore, be- tween these two gravities is lessened ; the ratio between them is less than that of the inverse square of the distance. The Moon, therefore, if moving towards perigee, meets the line of the apsides, in a point more remote from the Earth than the mean place of the perigee : if moving towards the apogee, in a point between the Earth and the mean place of the apogee. The orbit, by these means, becomes less eccentric ; the Equation of the centre is diminished, and,... the diminution is the Ejection.
We will now proceed to consider the third inequality called The Variation. (See Physical Astronomy, pp. 217, Sec. ) By comparing the Moon's place computed, from her mean motion, the equation of the centre, and the Evection, with her observed place, Tycho Brahe, in the sixteenth century, discovered that the two places did not always agree. They agreed only in opposition and conjunction, and varied most, when the Moon was half way between quadratures and syzygies, that is, in Octants.
What to read after A Treatise On Astronomy Theoretical And Practical volume 12?
You can find similar books in the "Read Also" column, or choose other free books by Robert Woodhouse to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The disproportion, therefore, be- tween these two gravities is lessened ; the ratio between them is less than that of the inverse square of the distance. The Moon, therefore, if moving towards perigee, meets the line of the apsides, in a point more remote from the Earth than the mean place of the perigee : if moving towards the apogee, in a point between the Earth and the mean place of the apogee. The orbit, by these means, becomes less eccentric ; the Equation of the centre is diminished, and,... the diminution is the Ejection.
We will now proceed to consider the third inequality called The Variation. (See Physical Astronomy, pp. 217, Sec. ) By comparing the Moon's place computed, from her mean motion, the equation of the centre, and the Evection, with her observed place, Tycho Brahe, in the sixteenth century, discovered that the two places did not always agree. They agreed only in opposition and conjunction, and varied most, when the Moon was half way between quadratures and syzygies, that is, in Octants.
What to read after A Treatise On Astronomy Theoretical And Practical volume 12?
You can find similar books in the "Read Also" column, or choose other free books by Robert Woodhouse to read onlineMoreLess
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