Uranography: Or, a Description of the Heavens; Designed for Academies and Schools; Accompanied by an Atlas of the Heavens, Showing the Places of the Principal Stars, Clusters, and NebulæButler & Company, 1845 - 365 sivua |
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Muita painoksia - Näytä kaikki
Yleiset termit ja lausekkeet
3d magnitude 8th magnitudes Andromeda aphelion apparent diameter appear Arcturus astronomers axis BEAR Plate beautiful body Boötes bright called Cassiopeia centre Cepheus comet components constellation constellation lies Cor Caroli degrees high Denebola disc double star earth eclipse equator FABLE fixed stars greater grees high group of stars head heavens Hercules Herschel horizon Hydra inclination Juno Jupiter light line drawn Mars mean distance Mercury meridian miles milky-way moon moon's nearly nebula nitude nodes northern observed orbit Orion Pallas Pegasus perihelion period Perseus planet planetary nebula Plate VII pole portion principal stars proper motion R. A. and Dec Regulus remarkable revolution Right Ascension ring satellites Saturn seen Serpent Serpent-Bearer situated small stars solar southern stellar system Struve sun enters sun's supposed surface Swan tail telescopes three stars tides tion triangle triple star Uranus variable star Venus Virgin visible yellow zenith
Suositut otteet
Sivu 197 - The squares of the periods of revolution of any two planets are proportional to the cubes of their mean distances from the sun.
Sivu 14 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Sivu 43 - The inference is irresistible, that they are masses of chaotic matter, in a highly diluted or gaseous state, gradually subsiding, by the mutual gravitation of their particles, into stars and sidereal systems. This is the hypothesis of Laplace with regard to the origin of the solar system, which he conceived to be formed by the successive condensations of a nebula whose primeval rotation is still maintained in the rotation and revolution of the Sun, and all the bodies of the solar system, in the same...
Sivu 193 - An eclipse of the sun is an occultation of the whole or part of the face of the sun. occasioned by an interposition of the moon between the earth and the sun; thus all eclipses of the sun happen at the time of new moon.
Sivu 287 - Divine wrath, was so frightened at its appearance that he ordered public prayers to be offered up in every town, and the bells to be tolled at the noon of each day, to warn the people to supplicate the mercy of Heaven. He at the same time excommunicated both the comet and the Turks, whose arms had lately proved victorious against the Christians, and established the custom, which still exists in Catholic countries, of ringing the church bells...
Sivu 194 - An eclipse of the moon is an obscuration of the light of the moon occasioned by the interposition of the earth between the sun and the moon; consequently all eclipses of the moon happen at full moon; for it is only when the moon is...
Sivu 43 - Six or seven hundred nebulae have already been ascertained in the southern hemisphere; of these the magellanic clouds are the most remarkable. The nature and use of this matter, scattered over the heavens in such a variety of forms, is involved in the greatest obscurity. That it is a self-luminous, phosphorescent, material substance, in a highly dilated or gaseous state, but gradually subsiding by the mutual gravitation of its particles into stars and sidereal systems...
Sivu 311 - ... open sea, there is a meridian about 30° eastward of the moon where it is always high water both in the hemisphere where the moon is, and that which is opposite.
Sivu 14 - Equinoctial, is the great circle in which the plane of the earth's equator produced intersects the surface of the celestial sphere.
Sivu 264 - ... divinities of the Assyrians and other nations, says they had general names of Baalim and Asteroth, those male, these female. The entire organisation of Babylonia was attributed by tradition to Belus. Jupiter was regarded as the king of heaven and earth. His worship was universal, and surpassed in solemnity that of all the other deities. His temples were numerous, and he had many oracles, of which the most renowned were those of Dodona in Epirus, and Ammon in the Libyan Desert. His names were...