Astronomy Explained Upon Sir Isaac Newton's Principles: And made easy to those who have not studied mathematicsFerguson, James
Science
Astronomy Explained Upon Sir Isaac Newton's Principles: And made easy to those who have not studied mathematics
Ferguson, James
Astronomy -- Early works to 1800
321. “To illustrate this a little farther, we shall examine some of the
most remarkable circumstances of the returns of the Eclipse which
happened _July 14, 1748_, about noon: This Eclipse, after traversing the
voids of space from the Creation, at last began to enter the _Terra
Australis Incognita_, about 88 years after the Conquest, which was the
last of King STEPHEN’s reign; every [66]_Chaldean_ period it has crept
more northerly, but was still invisible in _Britain_ before the year
1622; when on the 30th of _April_ it began to touch the south parts of
_England_ about 2 in the afternoon; its central appearance rising in the
_American_ South Seas, and traversing _Peru_ and the _Amazon_’s country,
through the _Atlantic_ ocean into _Africa_, and setting in the
_Æthiopian_ continent, not far from the beginning of the Red Sea.
“Its next visible period was after three _Chaldean_ revolutions in 1676,
on the first of _June_, rising central in the _Atlantic_ ocean, passing
us about 9 in the morning, with four [67]Digits eclipsed on the under
limb; and setting in the gulf of _Cochinchina_ in the _East-Indies_.
“It being now near the Solstice, this Eclipse was visible the very next
return in 1694, in the evening; and in two periods more, which was in
1730, on the 4th of _July_, was seen above half eclipsed just after
Sun-rise, and observed both at _Wirtemberg_ in _Germany_, and _Pekin_ in
_China_, soon after which it went off.
“Eighteen years more afforded us the Eclipse which fell on the 14th of
_July 1748_.
“The next visible return will happen on _July 25, 1766_, in the evening,
about four Digits eclipsed; and after two periods more, on _August_
16th, 1802, early in the morning, about five Digits, the center coming
from the north frozen continent, by the capes of _Norway_, through
_Tartary_, _China_, and _Japan_, to the _Ladrone_ islands, where it goes
off.
“Again, in 1820, _August 26_, betwixt one and two, there will be another
great Eclipse at _London_, about 10 Digits; but happening so near the
Equinox, the center will leave every part of _Britain_ to the West, and
enter _Germany_ at _Embden_, passing by _Venice_, _Naples_, _Grand
Cairo_, and set in the gulf of _Bassora_ near that city.
“It will be no more visible till 1874, when five Digits will be
obscured, the center being now about to leave the Earth on _September
28_. In 1892 the Sun will go down eclipsed at _London_, and again in
1928 the passage of the center will be in the _expansum_, though there
will be two Digits eclipsed at _London_, _October_ the 31st of that
year; and about the year 2090 the whole Penumbra will be wore off;
whence no more returns of this Eclipse can happen till after a
revolution of 10 thousand years.
Public-domain text, read in full here on John Shaqi.
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