The Geography of the Heavens, and Class Book of Astronomy; Accompanied by a Celestial Atlas |
From inside the book
Results 1-5 of 55
Page 28
... Declination are small circles , imagined to be drawn on the concave surface of the heavens , north and south of the equinoctial , and parallel to it ; or they may be consid ered as circles formed by producing the parallels of latitude ...
... Declination are small circles , imagined to be drawn on the concave surface of the heavens , north and south of the equinoctial , and parallel to it ; or they may be consid ered as circles formed by producing the parallels of latitude ...
Page 29
... declination and right ascension , than by their latitude and longitude , since the former correspond to terrestrial latitude and longitude . Latitude and declination may extend 90 ° and no more . Terrestrial longitude may extend 180 ...
... declination and right ascension , than by their latitude and longitude , since the former correspond to terrestrial latitude and longitude . Latitude and declination may extend 90 ° and no more . Terrestrial longitude may extend 180 ...
Page 31
... declination , of which , indeed , those around the North Pole are always , and those around the South Pole , never , visible to us . These constellations are represented on the sixth and seventh maps , called circumpolar maps , which ...
... declination , of which , indeed , those around the North Pole are always , and those around the South Pole , never , visible to us . These constellations are represented on the sixth and seventh maps , called circumpolar maps , which ...
Page 32
... declination corresponds with the latitude of the place of observation , represents the zenith of the heavens at that place ; and those constellations of stars which occupy this position on the maps , will be seen directly over head at 9 ...
... declination corresponds with the latitude of the place of observation , represents the zenith of the heavens at that place ; and those constellations of stars which occupy this position on the maps , will be seen directly over head at 9 ...
Page 35
... declination . Its mean right ascension is nearly 15 ° ; or one hour E. of the equinoctial colure . It consists of 66 visible stars , of which three are of the 2d magnitude , and two of the 3d ; most of the rest are small . The stars ...
... declination . Its mean right ascension is nearly 15 ° ; or one hour E. of the equinoctial colure . It consists of 66 visible stars , of which three are of the 2d magnitude , and two of the 3d ; most of the rest are small . The stars ...
Other editions - View all
Common terms and phrases
3d magnitude 4th magnitude ancient angle appear Arcturus Argo Navis Aries astronomers Auriga axis Beta brightest called Cassiopeia celestial centre Cepheus circle cluster colure comet constellation Cor Caroli declination degree Delta Denebola Describe diameter direction distinguished diurnal motion Earth east ecliptic equal equator equinoctial figure fixed stars Gamma globe head heavenly bodies heavens Hercules Herschel horizon Jupiter latitude length Libra light longitude mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearly nebulæ night node north pole northern hemisphere observed orbit Orion parallax passing perihelion period Perseus phenomena planets Pleiades polar star position principal star represented revolution revolve right ascension rise satellites Saturn seasons seen side sidereal Sirius situated small stars solar system solstice southern spots Sun's supposed surface Taurus telescope tion triangle Ursa Venus vernal equinox Virgo visible whole number Zeta Zodiac