The Geography of the Heavens and Class-book of Astronomy: Accompanied by a Celestial Atlas |
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Page 300
... refraction of the clouds that gives the sky its beautiful colors morning and evening ; and the refracting power of the rain - drops produces the beautiful phenomenon of the rain- bow . ATMOSPHERICAL REFRACTION . 645. The refracting ...
... refraction of the clouds that gives the sky its beautiful colors morning and evening ; and the refracting power of the rain - drops produces the beautiful phenomenon of the rain- bow . ATMOSPHERICAL REFRACTION . 645. The refracting ...
Page 301
... refraction . 648. Another effect of refraction is , that the Sun seems to rise about three minutes earlier , and to set about three minutes later , on account of atmospherical refraction , than it otherwise would ; thus adding about six ...
... refraction . 648. Another effect of refraction is , that the Sun seems to rise about three minutes earlier , and to set about three minutes later , on account of atmospherical refraction , than it otherwise would ; thus adding about six ...
Page 305
... refraction , but always in a contrary manner . Hence the mariner , in finding the latitude at sea , always adds the parallax , and subtracts the refraction , to and from the Sun's observed altitude , in order to obtain the true altitude ...
... refraction , but always in a contrary manner . Hence the mariner , in finding the latitude at sea , always adds the parallax , and subtracts the refraction , to and from the Sun's observed altitude , in order to obtain the true altitude ...
Page 309
... refraction . It is reflected when it falls upon REFLECTION AND REFRACTION OF LIGHT . 309.
... refraction . It is reflected when it falls upon REFLECTION AND REFRACTION OF LIGHT . 309.
Page 310
... refracted when it passes through transparent substances of diffe- rent densities , as already illustrated in Chapter XVI . REFRACTION BY GLASS LENSES . 674. A lens is a piece of glass , or other transparent substance , of such a form as ...
... refracted when it passes through transparent substances of diffe- rent densities , as already illustrated in Chapter XVI . REFRACTION BY GLASS LENSES . 674. A lens is a piece of glass , or other transparent substance , of such a form as ...
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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