The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
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Page 9
... appear on a clear evening , are the first objects that demand our attention . Our first step is to learn the names and positions of the heavenly bodies , so that we can identify , and distinguish them from each other . In this manner ...
... appear on a clear evening , are the first objects that demand our attention . Our first step is to learn the names and positions of the heavenly bodies , so that we can identify , and distinguish them from each other . In this manner ...
Page 11
... appear to meet . To a person standing on a plain , this circle is but a few miles in diameter . If the eye he ... appears to describe annually among the stars . It crosses the Equinoctial , a little obliquely , in two oppo- site points ...
... appear to meet . To a person standing on a plain , this circle is but a few miles in diameter . If the eye he ... appears to describe annually among the stars . It crosses the Equinoctial , a little obliquely , in two oppo- site points ...
Page 13
... appear to describe , every hour , for the 24 hours of the day . They are thence sometimes denominated Hour Circles . In measuring distances and determining positions on the Earth , the equator and some fixed meridian , as that of ...
... appear to describe , every hour , for the 24 hours of the day . They are thence sometimes denominated Hour Circles . In measuring distances and determining positions on the Earth , the equator and some fixed meridian , as that of ...
Page 16
... appears as a unit under the most powerful telescopes . Double , triple , and multiple stars , are those that appear single to the naked eye , but by the aid of telescopes are found to consist of two or more stars . Binary stars are ...
... appears as a unit under the most powerful telescopes . Double , triple , and multiple stars , are those that appear single to the naked eye , but by the aid of telescopes are found to consist of two or more stars . Binary stars are ...
Page 17
... appear , is not so easily determined by those who are just entering upon this study , as that of some others . For this reason , the point directly overhead , called the zenith , is preferable , since upon this point every one can fix ...
... appear , is not so easily determined by those who are just entering upon this study , as that of some others . For this reason , the point directly overhead , called the zenith , is preferable , since upon this point every one can fix ...
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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