The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
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Page 7
... Seasons - Different Lengths of the Days and Nights , 287 66 XV . The Harvest Moon , and Horizontal Moon , 293 " XVI . Refraction and Twilight , · 297 " XVII . Aurora Borealis and Parallax , · 802 " XVIII . Practical Astronomy ...
... Seasons - Different Lengths of the Days and Nights , 287 66 XV . The Harvest Moon , and Horizontal Moon , 293 " XVI . Refraction and Twilight , · 297 " XVII . Aurora Borealis and Parallax , · 802 " XVIII . Practical Astronomy ...
Page 12
... seasons of the year . One of them passes through the equinoxes at Aries and Libra , and is thence called the Equi- noctial Colure ; the other passes through the solstitial points or the points of the Sun's greatest declination north and ...
... seasons of the year . One of them passes through the equinoxes at Aries and Libra , and is thence called the Equi- noctial Colure ; the other passes through the solstitial points or the points of the Sun's greatest declination north and ...
Page 15
... seasons of the year it is easier to look up to stars that want an hour of their meridian altitude than to those which are directly overhead . CLASSIFICATION OF STARS , NEBULE , & c . 23. For purposes of convenience in finding or ...
... seasons of the year it is easier to look up to stars that want an hour of their meridian altitude than to those which are directly overhead . CLASSIFICATION OF STARS , NEBULE , & c . 23. For purposes of convenience in finding or ...
Page 23
... season of the year . Its mean declination is 609 N. and its right ascension 12 ° . It is on our meridian the 22d of November , but does not sensibly change its position for several days ; for it should be remembered that the apparent ...
... season of the year . Its mean declination is 609 N. and its right ascension 12 ° . It is on our meridian the 22d of November , but does not sensibly change its position for several days ; for it should be remembered that the apparent ...
Page 29
... season of the flocks . Thus each sign of 30 ° in the Zodiac , received a distinctive appellation , according to the fancy or superstition of the inventors ; which names have ever since been retained , although the constellations ...
... season of the flocks . Thus each sign of 30 ° in the Zodiac , received a distinctive appellation , according to the fancy or superstition of the inventors ; which names have ever since been retained , although the constellations ...
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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