Astronomical and Geographical Essaysauthor, 1789 - 665 páginas |
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Página 21
... SPOTS , are more obscure than others . By continued obfer- vation he will find , that these spots change their places , and move from one fide of the planet to the other ; then disappear for a certain space of time ; after which , they ...
... SPOTS , are more obscure than others . By continued obfer- vation he will find , that these spots change their places , and move from one fide of the planet to the other ; then disappear for a certain space of time ; after which , they ...
Página 51
... spots have been obferved on this difk , and found to have a motion from east to west ; their velocity is greater when they are at the center , than when they are near the limb . They are feen D 2 firft first on one extremity , and by ...
... spots have been obferved on this difk , and found to have a motion from east to west ; their velocity is greater when they are at the center , than when they are near the limb . They are feen D 2 firft first on one extremity , and by ...
Página 52
... spots . Spots have been feen , that were much larger than the earth . The fun is fuppofed to have an atmosphere round it , which occafions that appearance which is termed the ZODIACAL LIGHT . This light is feen at fome feafons of the ...
... spots . Spots have been feen , that were much larger than the earth . The fun is fuppofed to have an atmosphere round it , which occafions that appearance which is termed the ZODIACAL LIGHT . This light is feen at fome feafons of the ...
Página 55
... spot . This happens in it's lower conjunction , at a particular fituation of it's nodes ; which leads us to mention their place in the ecliptic . The angle formed by the inclination of the orbit of Mercury with the plane of the ecliptic ...
... spot . This happens in it's lower conjunction , at a particular fituation of it's nodes ; which leads us to mention their place in the ecliptic . The angle formed by the inclination of the orbit of Mercury with the plane of the ecliptic ...
Página 61
... spot . These appear- ances , which are called tranfits , happen very feldom ; there have been two within these few years , the one in June , 1761 , the other in June , 1769 ; the next will be in the year 1874 OF THE EARTH . The next ...
... spot . These appear- ances , which are called tranfits , happen very feldom ; there have been two within these few years , the one in June , 1761 , the other in June , 1769 ; the next will be in the year 1874 OF THE EARTH . The next ...
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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