Astronomical and Geographical Essaysauthor, 1789 - 665 páginas |
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Página 18
... same star again , will find the times elapfing between each fucceffive return of the fame planet to the fame ftar , to be equal ; and he would fay , that the feveral planets : describe circles in different periods ; but that cach of ...
... same star again , will find the times elapfing between each fucceffive return of the fame planet to the fame ftar , to be equal ; and he would fay , that the feveral planets : describe circles in different periods ; but that cach of ...
Página 21
... same motion nearly in an uniform manner . The distance between the spots grows wider as they advance from the edge towards the middle of the planet , and then grows narrow again as they pass from the middle to the other edge . The time ...
... same motion nearly in an uniform manner . The distance between the spots grows wider as they advance from the edge towards the middle of the planet , and then grows narrow again as they pass from the middle to the other edge . The time ...
Página 22
... same again. He will also see, that is the paths of the planets were inlone plane, as in the instrument, they would all be transferred to one circle in the heavens. When he understands these particulars, the tutor may then proceed to ...
... same again. He will also see, that is the paths of the planets were inlone plane, as in the instrument, they would all be transferred to one circle in the heavens. When he understands these particulars, the tutor may then proceed to ...
Página 29
... same points of the horizon , opposite to the fame terrestrial objects , and are always at the fame distance from each other ; whereas the fun is continually changing both the place of it's rifing and fetting , and it's distance from the ...
... same points of the horizon , opposite to the fame terrestrial objects , and are always at the fame distance from each other ; whereas the fun is continually changing both the place of it's rifing and fetting , and it's distance from the ...
Página 34
... same limitations in his motions as Venus and Mercury, but appears sometimes very near the sun, at others at a greater difiance from him. i. him, rising when the sun sets, or setting when he 6 34 . ASTRONOMICAL ESSAYS.
... same limitations in his motions as Venus and Mercury, but appears sometimes very near the sun, at others at a greater difiance from him. i. him, rising when the sun sets, or setting when he 6 34 . ASTRONOMICAL ESSAYS.
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Términos y frases comunes
aftronomy alfo alſo apparent motion atmoſphere becauſe bodies braſs meridian broad paper circle called cauſes celeftial confequently conjunction decreaſe defcribe degrees diameter diftinguiſhed diſappear diſcovered diſtance diurnal motion earth eaſt ecliptic elongation equator faid fame fatellites feen fhadow fhew fhould fide figns firſt fituation fixed ftars fize folar fome fometimes fouth fouthern fpectator fuch fummer fun appears fun's fuperior fuppofe furface fyftem greateſt heavens hemifphere horizon increaſe inferior conjunction inferior planets inhabitants interfect itſelf Jupiter latitude lefs light London longitude meaſure Mercury miles moon moon's moſt move muſt night nodes obferved oppofite orbit paffes paffing parallax parallel phænomena pofition polar circle pole reaſon repreſent reſpect retrograde motion revolves round rife round the fun Saturn ſeen ſhall ſhe ſmall ſpace ſphere ſpots ſtars ſuppoſe ſyſtem teleſcope thefe theſe thofe thoſe tropic of Cancer univerfe uſed Venus viſible weft whofe