A Compendium of Astronomy: Intended to Simplify and Illustrate the Principles of the Science : and Give a Concise View of the Motions and Aspects of the Great Heavenly Luminaries : Adapted to the Use of Common Schools, as Well as Higher SeminariesCarter, Hendee & Company, 1832 - 180 pages |
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Page 19
... less luminous than the rest of the sun , they seem to have some very imperfect resemblance to penumbra , which occasion- ed them formerly to be so called . Ridges are elevations of luminous matter , extended in rows of irregular ...
... less luminous than the rest of the sun , they seem to have some very imperfect resemblance to penumbra , which occasion- ed them formerly to be so called . Ridges are elevations of luminous matter , extended in rows of irregular ...
Page 20
... less luminous than those more elevated , the disk of the sun has a motted appearance . / Indentations are the low or depressed parts of the corrugations . Pores are very small openings about the middle of the indentations . By a number ...
... less luminous than those more elevated , the disk of the sun has a motted appearance . / Indentations are the low or depressed parts of the corrugations . Pores are very small openings about the middle of the indentations . By a number ...
Page 23
... less than eighteen hundred for- ty - three , nor more than two thousand seven hundred sixty - five miles , consisting of two regions ; that nearest the sun being opaque , and probably resembling the- clouds of our earth ; the outermost ...
... less than eighteen hundred for- ty - three , nor more than two thousand seven hundred sixty - five miles , consisting of two regions ; that nearest the sun being opaque , and probably resembling the- clouds of our earth ; the outermost ...
Page 37
... less than the sun ; and the sun but a speck in the Cre- ator's works ; he seems to contract its true dimensions , and to be insensible , that still to its inhabitants it is a globe of vast magnitude ; of which and its kindred orbs it ...
... less than the sun ; and the sun but a speck in the Cre- ator's works ; he seems to contract its true dimensions , and to be insensible , that still to its inhabitants it is a globe of vast magnitude ; of which and its kindred orbs it ...
Page 39
... less circles represented on an artifi- cial globe , and considered circles of the earth , two tropics and two polar circles . They are drawn par- allel to the equator . The northern tropic , called the tropic of Cancer , encompasses the ...
... less circles represented on an artifi- cial globe , and considered circles of the earth , two tropics and two polar circles . They are drawn par- allel to the equator . The northern tropic , called the tropic of Cancer , encompasses the ...
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A Compendium of Astronomy; Intended to Simplify and Illustrate the ... John Vose No preview available - 2011 |
Common terms and phrases
ancient angle aphelion appear Aries ascending node Asteroids astronomers atmosphere attraction axis bissextile brazen meridian cause celestial centre comets commence computation conjunction constellations declination degree discovered disk diurnal rotation dominical letter east eclipses elevated Epact equal equator equinox fast of clock fixed stars full moon harvest moon heat heavenly body heavens hemisphere Herschel horizon hour immense inclination inferior planets inhabitants Jupiter latitude libration light longitude longitude for 100 luminary luminous lunar magnitude Mars Mean diameter Mean distance Mercury and Venus miles month move night obliquity observed opposite orbit parallax passing performs a revolution perihelion Plate polar circles poles primary planets rays reckoned refraction represented retrograde motion revolution round revolve right ascension rising round the earth round the sun satellites Saturn seen side sidereal slow of clock solar system spots Sun fast Sun slow sun's place superior conjunction telescope tides tion visible zenith