The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
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Page 10
... northern and southern hemi- spheres . The Equator of the Heavens , or Equinoctial , is the great circle formed on the concave surface of the heavens , by producing the plane of the Earth's equator . A plane is that which has surface but ...
... northern and southern hemi- spheres . The Equator of the Heavens , or Equinoctial , is the great circle formed on the concave surface of the heavens , by producing the plane of the Earth's equator . A plane is that which has surface but ...
Page 13
... northern is called the Arctic circle , and the southern the Antarctic circle . 16. Meridians are imaginary great circles drawn through the poles of the world , cutting the equator and the equinoctial at right angles . Every place on the ...
... northern is called the Arctic circle , and the southern the Antarctic circle . 16. Meridians are imaginary great circles drawn through the poles of the world , cutting the equator and the equinoctial at right angles . Every place on the ...
Page 18
... Northern Fish . It is situated between 20 ° and 50 ° of N. declination . Its mean right ascension is nearly 15 ° ; or one hour E. of the equinoctial colure . 30. It consists of 66 visible stars , of which three are of the 2d magnitude ...
... Northern Fish . It is situated between 20 ° and 50 ° of N. declination . Its mean right ascension is nearly 15 ° ; or one hour E. of the equinoctial colure . 30. It consists of 66 visible stars , of which three are of the 2d magnitude ...
Page 20
... northern hand ; midway between 3 Pegasi and a Cassiopeia ; or about 18 ° from each ; R. A. 23h . 32m . 33s ; Dec. , Ν . 48 ° 27 ' 0 " . A. 5 , brilliant white ; B. 14 , dusky ; C. 12 , ash - colored . 6. AN ELONGATED NEBULA on the ...
... northern hand ; midway between 3 Pegasi and a Cassiopeia ; or about 18 ° from each ; R. A. 23h . 32m . 33s ; Dec. , Ν . 48 ° 27 ' 0 " . A. 5 , brilliant white ; B. 14 , dusky ; C. 12 , ash - colored . 6. AN ELONGATED NEBULA on the ...
Page 21
... Northern Fish , whose mean length is about 16 ° , and breadth , 7 ° . Its mean right ascension is 15 ° , and its declination 25 ° N. Consequently , it is on the meridian the 24th of November ; and from its breadth , is more than a week ...
... Northern Fish , whose mean length is about 16 ° , and breadth , 7 ° . Its mean right ascension is 15 ° , and its declination 25 ° N. Consequently , it is on the meridian the 24th of November ; and from its breadth , is more than a week ...
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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 celestial Cepheus circle cluster comet constellation Cor Caroli declination degree Delta Denebola diameter distant companion diurnal motion DOUBLE STAR Earth Earth's orbit east ecliptic equator equinoctial figure fixed stars Gamma head heavens hemisphere Herschel horizon Jupiter latitude Libra 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 tides tion triangle TRIPLE STAR Ursa Ursa Major Venus vernal equinox visible Zeta Zodiac