The Planetarium, and Astronomical Calculator ...
M'Elrath, Bangs & Herbert, 1834 - Astronomy - 236 pages
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angle apogee appear Aries ascending node attraction axis beginning body calculated called cause centre circle clock conjunction consequently constellation containing continue dark degrees descending describes diameter difference direction discovered disk distance diurnal earth eclipse equal equator EXAMPLES fall force fourth full Moon given globe gravity greater greatest half happen Heavens horizon Jupiter latitude least length less light London longitude lunations March matter mean anomaly mean distance Mercury meridian miles minutes month Moon in March Moon's orbit morning motion move namely nearer nearest never night northern observed once opposite passes penumbra performs period planet plate pole PROBLEM rays remainder revolve rise round seconds seen side signs solar space stars Style subtract Sun and Moon Sun's mean surface Table third thousand tides tion touches true Venus visible whole
Page 198 - Aries the Ram, Taurus the Bull, Gemini the Twins, Cancer the Crab, Leo the Lion, Virgo the Virgin, Libra the Balance, Scorpio the Scorpion, Sagittarius the Archer, Capricornus the Goat, Aquarius the Waterbearer, and Pisces the Fishes...
Page 78 - On the parallel of London, as much of the ecliptic rises about Pisces and Aries in two hours, as the moon goes through in six days ; therefore...
Page 12 - Thousands of thousands of suns, multiplied without end, and ranged all around us, at immense distances from each other, attended by ten thousand times ten thousand worlds, all in rapid motion, yet calm, regular, and harmonious, invariably keeping the paths prescribed them ; and these worlds peopled with myriads of intelligent beings, formed for endless progression in perfection and felicity.
Page 219 - Rectify the globe for the latitude of the place, find the sun's place in the ecliptic and bring it to the brass meridian, and set the index of the hour circle to 12.
Page 30 - After the lapse of years, we perceive it again returning to our system, and tracing a portion of the same orbit round the sun, which it had formerly described.
Page 23 - Its mean distance from the sun is about 253 millions of miles; its revolution is completed in 4 years and 130 days, and its diameter is computed to be about 1425 miles. It is free from the nebulosity which surrounds Pallas, and is distinguished from all the other planets by the great eccentricity of its orbit; being at its least distance from the sun only 189 millions of miles, and at its greatest distance, 316 millions. — Vesta was discovered by Dr. Olbers on the 29th March, 1807. It appears like...
Page 217 - X.) and bring it to the meridian, and set the index to 12 ; bring the sun's place to the eastern edge of the horizon, and the index will show the...
Page 32 - Earth were actually to receive a shock from one of these bodies, " having any considerable density," the consequences would indeed be awful. A new direction would be given to its rotary motion, and it would revolve around a new axis. The seas, forsaking their beds, would be hurried, by their centrifugal force, to the new equatorial regions ; islands and continents, the abodes of men and animals, would be covered by the universal rush of the waters to the new equator, and every vestige of human industry...
Page 90 - Differences of local situation cause great differences as to the height to which the tide rises. In the central parts of the ocean the height is comparatively small, seldom exceeding three feet, but in rushing up contracted channels the...
Page 10 - ... by their influences. Whoever imagines that they were created only to give a faint glimmering light to the inhabitants of this globe, must have a very superficial knowledge of Astronomy, and a mean opinion of the Divine Wisdom...