Astronomy, as it is Known at the Present Day: With an Account of the Nature and Use of Astronomical Instruments, the Manner of Calculating the Notes of the Calendar, the Distances and Magnitudes of the Planets, and a Number of Other Useful and Interesting Calculations in AstronomyW. Cole, 1825 - 166 страници |
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Страница 9
... to move forward an equal quantity , their longitude and right ascension being reckoned from one of those points , which is called the vernal equinox . 26. The Orbit of a Planet or Comet is the EXPLANATION OF ASTRONOMICAL TERMS .
... to move forward an equal quantity , their longitude and right ascension being reckoned from one of those points , which is called the vernal equinox . 26. The Orbit of a Planet or Comet is the EXPLANATION OF ASTRONOMICAL TERMS .
Страница 11
... equinox , because the sun appears in it in the spring , about the 20th of March ; its opposite is called the autumnal equinox , because the sun arrives at it about the middle of autumn , or the 23d of September . 32. The Ecliptic is ...
... equinox , because the sun appears in it in the spring , about the 20th of March ; its opposite is called the autumnal equinox , because the sun arrives at it about the middle of autumn , or the 23d of September . 32. The Ecliptic is ...
Страница 67
... to relate to circumstances or events merely local . Aries , is said to signify that the lambs begin to follow the sheep about the time of the vernal equinox , when the sun enters this sign ; CONSTELLATIONS , OR ASTERISMS .
... to relate to circumstances or events merely local . Aries , is said to signify that the lambs begin to follow the sheep about the time of the vernal equinox , when the sun enters this sign ; CONSTELLATIONS , OR ASTERISMS .
Страница 68
... equinox , when the sun enters this sign ; and that the cows bring forth their young about the time he approaches the second con- stellation , Taurus , or the Bull . The third sign now called Gemini , was originally two kids , and ...
... equinox , when the sun enters this sign ; and that the cows bring forth their young about the time he approaches the second con- stellation , Taurus , or the Bull . The third sign now called Gemini , was originally two kids , and ...
Страница 127
... equinox , because spring commences to the inhabitants of the northern hemisphere , while autumn begins to those of the southern . After the 20th of March the sun appears to rise every day sensibly more to the northward than he did the ...
... equinox , because spring commences to the inhabitants of the northern hemisphere , while autumn begins to those of the southern . After the 20th of March the sun appears to rise every day sensibly more to the northward than he did the ...
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altitude angle appear ascertained astronomers atmosphere Aurora Borealis axis calculations called centre circle clouds colours Comets constellation degrees density diameter direction disc discovered diurnal motion Dominical letter earth's orbit eccentric anomaly eclipse equal equator equinox fixed stars following figure glass globe gravity greater greatest heat heavenly bodies heavens height Hence Herschel horizon inferior conjunction Julius Cæsar Jupiter known latitude length light longitude luminous lunar magnitude mean distance Mercury meridian miles minutes moon moon's move nearly night object obliquity observed occasioned opposite parallax passing period phenomena philosophers poles produced Ptolemy quantity of matter rainbow rays refraction retrograde motion revolution round revolve right ascension rise round the earth round the sun satellites Saturn seen shadow shines sidereal solar spherical sun and moon sun's supposed surface telescope tides tion Tycho Tychonic systems Uranus velocity Venus visible
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Страница 110 - Sometime we see a cloud that's dragonish ; A vapour sometime like a bear or lion, A tower'd citadel, a pendent rock, A forked mountain, or blue promontory With trees upon't, that nod unto the world, And mock our eyes with air : thou hast seen these signs ; They are black vesper's pageants.
Страница 100 - Meantime, refracted from yon eastern cloud, Bestriding earth, the grand ethereal bow Shoots up immense; and every hue unfolds, In fair proportion, running from the red To where the violet fades into the sky.
Страница 130 - With light and heat refulgent. Then Thy sun Shoots full perfection through the swelling year: And oft Thy voice in dreadful thunder speaks : And oft...
Страница 15 - These are thy glorious works, Parent of good, Almighty ! thine this universal frame, Thus wondrous fair: thyself how wondrous then, Unspeakable ! who sitt'st above these heavens To us invisible, or dimly seen In these thy lowest works; yet these declare Thy goodness beyond thought, and power divine.
Страница 23 - Had in her sober livery all things clad; Silence accompanied, for beast and bird, They to their grassy couch, these to their nests, Were slunk, all but the wakeful nightingale; She all night long her amorous descant* sung; Silence was pleased: now...
Страница 16 - Hither, as to their fountain, other stars Repairing, in their golden urns draw light...
Страница 116 - The rising vapours catch the silver light ; Thence fancy measures, as they parting fly, Which first will throw its shadow on the eye, Passing the source of light ; and thence away, Succeeded quick by brighter still than they.
Страница 64 - ... a degree of brightness about as strong as that with which such a coal would be seen to glow in faint daylight.
Страница 68 - Next glaring wat'ry thro' the Bull he moves; The am'rous Twins admit his genial ray ; Now burning, thro' the Crab he takes his way ; The Lion flaming, bears the solar power; The Virgin faints beneath the sultry shower. Now the just Balance weighs his equal force, The slimy Serpent swelters in his course; The sabled Archer clouds his languid face ; The Goat, with tempests, urges on his race.
Страница 111 - Where, midst the changeful scenery, ever new, Fancy a thousand wondrous forms descries, More wildly great than ever pencil drew, Rocks, torrents, gulfs, and shapes of giant size, And glitt'ring cliffs on cliffs, and fiery ramparts, rise.