 | John Pinkerton - 1804 - 694 páginas
...the moon is rendered visible, and of a dusky red colour. 150. An eclipse of the moon arising from a real deprivation of light, must appear to begin at...Instant of time to every place on that hemisphere cf the earth which is next the moon. Hence, it affords a ready method of finding the longitudes of... | |
 | Samuel Vince - 1811 - 260 páginas
...be set off to the right; otherwise, to the left of Cn. 309. An eclipse of the moon, arising from its real deprivation of light, must appear to begin at...comes to the umbra, and therefore it gradually loses its light; and the penumbra is so dark just at the umbra, that it is difficult to ascertain the exact... | |
 | Jedidiah Morse - 1814 - 696 páginas
...account the moon is rendered visible, and of a dusky red color. An eclipse of the moon arising from a real deprivation of light, must appear to begin at...every place on that hemisphere of the Earth, which is next the moon. Hence, it affords a ready method of finding the longitudes of places upon the Earth's... | |
 | Samuel Vince - 1814 - 602 páginas
...1642, entirely disappeared. 555. An eclipse of the moon arising from its real deprivation of light, it must appear to begin at the same instant of time to...every place on that hemisphere of the earth which is next the moon. Hence it affords a very ready method of finding the difference of longitudes of places... | |
 | Sidney Edwards Morse - 1822 - 706 páginas
...account the moon is rendered visible, and of a dusky red color. An eclipse of the moon arising from a real deprivation of light, must appear to begin at...every place on that hemisphere of the Earth, which is next the moon. Hence, it affords a ready method of finding the longitudes of places upon the Earth"?... | |
 | Sidney Edwards Morse - 1822 - 706 páginas
...account the moon is rendered visible, and of a dusky red •color. An eclipse of the moon arising from a real deprivation of light, must appear to begin at...every place on that hemisphere of the Earth, which is next the moon. Hence, it affords a ready method of finding the longitudes of placos upon the Earth's... | |
 | Thomas Arnold - 1822 - 1008 páginas
...by the sun's altitude, or the error found and allowed for. An eclipse of the moon, arising from its real deprivation of light, must appear to begin at the same instant to every place on that part of the earth which is turned towards the moon. The moon enters the penumbra... | |
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... red color. An eclipse of the moon arising from a real deprivation of light, must appear to begin at the same instant of time to every place on that hemisphere of the Earth, which is next the moon. Hence, it affords a ready method of finding the longitudes... 