The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
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Page 18
... visible stars , of which three are of the 2d magnitude , and two of the 3d ; most of the rest are small . The stars directly in the zenith are too small to be seen in the pre- sence of the moon , but the bright star Almaack ( y ) , of ...
... visible stars , of which three are of the 2d magnitude , and two of the 3d ; most of the rest are small . The stars directly in the zenith are too small to be seen in the pre- sence of the moon , but the bright star Almaack ( y ) , of ...
Page 19
... visible to the naked eye , as well as the principal objects of interest that are strictly telescopic . In describing the location of these objects , R. A. will denote Right Ascen- sion ; and Dec. , Declination . The initials N. and S ...
... visible to the naked eye , as well as the principal objects of interest that are strictly telescopic . In describing the location of these objects , R. A. will denote Right Ascen- sion ; and Dec. , Declination . The initials N. and S ...
Page 20
... visible to the naked eye . It resembles two cones of light , joined at their base , about 3 ° in length , and 4 ° in breadth . It was known as far back as A.D. 905 , is of an oval shape , and is described by Smyth as " an overpowering ...
... visible to the naked eye . It resembles two cones of light , joined at their base , about 3 ° in length , and 4 ° in breadth . It was known as far back as A.D. 905 , is of an oval shape , and is described by Smyth as " an overpowering ...
Page 22
... visible in the United States ; those about the Arctic or Northern Pole , are always visible . HISTORY . 41. The ancient Greeks , who have some fable to account for the origin of almost every constellation , say , that as Venus and her ...
... visible in the United States ; those about the Arctic or Northern Pole , are always visible . HISTORY . 41. The ancient Greeks , who have some fable to account for the origin of almost every constellation , say , that as Venus and her ...
Page 24
... visible at such a distance . It was seen for sixteen months . Some astronomers imagined that it would reappear again after 150 years ; but it has never been discovered since . This phenomenon alarmed all the astronomers of the age , who ...
... visible at such a distance . It was seen for sixteen months . Some astronomers imagined that it would reappear again after 150 years ; but it has never been discovered since . This phenomenon alarmed all the astronomers of the age , who ...
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Common terms and phrases
3d magnitude 4th magnitude angle aphelion appear Arcturus Aries astronomers Auriga axis Beta blue bright star called Cassiopeia celestial Cepheus circle cluster comet constellation Cor Caroli declination degree Delta Denebola diameter distant companion DOUBLE STAR Earth Earth's orbit east ecliptic equator equinoctial figure fixed stars Gamma head heavens hemisphere Herschel horizon Jupiter latitude light longitude luminous Map VIII mean distance Mercury meridian miles minutes Moon Moon's motion naked eye nearly NEBULA node north pole northern Number of stars o'clock observed Orion pale yellow parallax pass perihelion period planet Pleiades polar position principal star Refracting telescopes refraction remarkable represented revolution revolve right ascension rising satellites Saturn seen shadow sidereal Sirius situated small stars solstice southern Sun's supposed surface Taurus TELESCOPIC OBJECTS TELESCOPIC OBJECTS.-Alpha tides tion triangle TRIPLE STAR Ursa Ursa Major Venus vernal equinox visible Zeta Zodiac