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" ... which time there would always be a regular period of eclipses, if any complete number of lunations were finished without a fraction. But this never happens ; for if both the Sun and Moon should start from a line of conjunction with either of the nodes... "
Lectures on Experimental Philosophy, Astronomy, and Chemistry: Intended ... - Page 24
by George Gregory - 1808
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Astronomy Explained Upon Sir Isaac Newton's Principles: And Made Easy to ...

James Ferguson - Astronomy - 1809 - 574 pages
...degrees of the ecliptic in 18 years and 225 days; in which time there would always be a regular period of eclipses, if any complete number of lunations were...never happens ; for if both the Sun and Moon should start from a line of conjunction with either of the nodes in any point of the ecliptic, the Sun would...
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An Introduction to Astronomy ...

John Bonnycastle - Astronomy - 1816 - 490 pages
...years and two hundred and twenty-five days; and in this time there would always be a regular period of eclipses, if any complete number of lunations were...the sun and moon should set out together from a line of conjunction with either of the nodes, in any point of the ecliptic, the sun would go through eighteen...
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The American Practical Lunarian: And Seaman's Guide ... To which are Annexed ...

Thomas Arnold - Marine insurance - 1822 - 1008 pages
...The nodes shift through all the signs and degrees of the ecliptic in eighteen years and 225 davs ; and in this time there would always be a regular return...the sun and moon should set out together from a line of conjunction with either of the nodes, in any point of the ecliptic, the sun would go through eighteen...
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The London General Gazetteer, Or Geographical Dictionary: Containing a ...

Geography - 1825 - 770 pages
...signs and de-, grées of the ecliptic in 18 years, £25 days, there would be always a regular period of eclipses, if any complete number of lunations were finished without a fraction. This never takes place but in 2ЖЗ mean lunations, or 18 years, and 10 or 11 days; after the Sun,...
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The Mirror of Literature, Amusement, and Instruction, Volume 9

1828 - 488 pages
...the signs of the ecliptic in 18 years and 225 days, in which there would always he a regular period of eclipses, if any complete number of lunations were...a fraction ; but this never happens ; for if both sun and moon should start from a line of conjunction with either of the nodes, in any point of the...
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A London Encyclopaedia, Or Universal Dictionary of Science, Art ..., Volume 3

Thomas Curtis - Aeronautics - 1829 - 852 pages
...degrees of the ecliptic in 18 years and 225 days; in which time there would always be a regular period of eclipses, if any complete number of lunations were...never happens ; for if both the sun and moon should start from a line of conjunction with either of the nodes in any point of the ecliptic, the sun would...
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The Planetarium and Astronomical Calculator

Tobias Ostrander - Astronomy - 1832 - 276 pages
...perigee. These points are directly opposite each other, and consequently exactly six signs asunder. fraction. But this never happens, for if both the Sun and Moon should start from a line of conjunction with either of the nodes in any point of the ecliptic, the Sun would...
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The Planetarium, and Astronomical Calculator ...

Tobias Ostrander - Astronomy - 1834 - 272 pages
...would always be a regular periodical return of eclipses, if any number of lunations were completed without a fraction. But this never happens ; for if both the Sun and Moon should start from a line of conjunction with either of the nodes in any point of the ecliptic, the Sun would...
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The Geography of the Heavens, and Class Book of Astronomy: Accompanied by a ...

Elijah Hinsdale Burritt - Astronomy - 1838 - 350 pages
...the sume point again,/ in 18 years, 225 days fin which time there would always be a regular period of eclipses,, if any complete number of lunations were finished without a remainder. But this never happens ; for if both the Sun and Moon should start fronp a line of conjunction...
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An epitome of astronomy: containing the information requisite for the ...

J. Tabor - 1853 - 102 pages
...ecliptic amounts to an entire revolution in 18 yrs., 218 days, 21 hours, 22 min., 46 sec., in which time there would always be a regular return of eclipses,...number of lunations were finished without a fraction ; this, however, never occurs ; but in 223 mean lunations after the sun, moon, and nodes have been...
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