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	Johannes Kepler - Wikipedia, the free encyclopedia
		Monument of Johannes Kepler and Tycho Brahe in Prague
		Kepler is known to have compiled prognostications for 1595 to 1606, and from 1617 to 1624.
		As court mathematician, Kepler explained to Rudolf II the horoscopes of the Emperor Augustus and the Prophet Muhammad, and Kepler gave astrological prognosis for the outcome of a war between the Republic of Venice and Paul V.
	en.wikipedia.org /wiki/Johannes_Kepler (3378 words)

	Encyclopedia :: encyclopedia : Johannes Kepler (Site not responding. Last check: 2007-10-22)
		Johannes Kepler (December 27, 1571 – November 15, 1630), a key figure in the scientific revolution, was a German mathematician, astronomer and astrologer of famed brilliance.
		Kepler was a professor of mathematics at the University of Graz, court mathematician to Emperor Rudolf II, and court astrologer to General Wallenstein.
		Kepler disdained astrologers who pandered to the tastes of the common man without knowledge of the abstract and general rules, but he saw compiling prognostications as a justified means of supplementing his meagre income.
	www.hallencyclopedia.com /Johannes_Kepler (2780 words)

	Kepler
		Kepler was born a son of a poor mercenary solider in 1571.
		The dedicatees of Kepler's numerous publications on astrology, astronomy, chronology and snowflakes indicate the range of patrons whom Kepler hoped to, and had to, rely upon for his livelihood.
		Kepler is often called a mystic or a Neo-Platonist for his metaphysical views, but it is important to appreciate the richness and breadth of his thought which gave rise to, among others, the three laws (though he never stated them systematically in the form that we know them today).
	www.hps.cam.ac.uk /starry/kepler.html (1000 words)

	The Galileo Project \| Science \| Johannes Kepler
		Johannes Kepler was born in Weil der Stadt in Swabia, in southwest Germany.
		Kepler remained in Graz until 1600, when all Protestants were forced to convert to Catholicism or leave the province, as part of Counter Reformation measures.
		Kepler served as Tycho Brahe's assistant until the latter's death in 1601 and was then appointed Tycho's successor as Imperial Mathematician, the most prestigious appointment in mathematics in Europe.
	galileo.rice.edu /sci/kepler.html (1275 words)

	Johannes Kepler - Biography pt. 1
		Johannes Kepler was born on 27 December 1571, in Weil der Stadt, Württemberg.
		Johannes Kepler was the first of six children, three of which who died while they were still infants; he himself was described as a sickly child, having been born nearsighted and afflicted with multiple vision.
		Kepler was generally content to be studying at the convent, but he nonetheless had difficulty fitting in with the other students, at some point even telling others he had been created by God to ponder the "difficult" things others would turn away from.
	www.johanneskepler.com /johannes_kepler_bio_001.htm (488 words)

	[No title] (Site not responding. Last check: 2007-10-22)
		Influenced by the Pythagoreans, Kepler viewed the universe as being governed by geometric relationships that conform to the inscribed and circumscribed circles of the five regular polygons.
		Among Kepler's numerous scientific contributions are an influential treatise on the theory of optics (1604), a treatise on optics as applied to telescope lenses (1611), a work offering physical explanations of the appearance of a nova in 1604, and an enthusiastic acceptance of and elaboration on Galileo's observations with a telescope (1610).
		Kepler's last great work, known as the Rudolphine Tables (1627), was a widely used compilation of accurate tables of planetary motion.
	sirius.phy.hr /~dpaar/fizicari/xkepler.html (542 words)

	ORBSEARCH.COM \| encyclopedia of knowledge
		Kepler explained planetary movement with noncircular curves, known as ellipses.
		Kepler discovered the three laws of planetary motion while trying to achieve the Pythagorean[?] purpose of finding the harmony of the celestial spheres[?].
		Kepler's willingness to abandon his most cherished theory in the face of precise observational evidence indicates that he had a very modern attitude to scientific research, whereas previous generations of astronomers had been content to accept the authority of ideas from previous generations.
	www.orbsearch.com /jo/Johannes_Kepler.php (1072 words)

	Kepler - Wikipedia, the free encyclopedia
		Johannes Kepler, a key figure in the scientific revolution.
		Kepler (crater on Mars), a crater on Mars
		Kepler's laws of planetary motion, a set of calculations for the orbits of planets
	en.wikipedia.org /wiki/Kepler (147 words)

	Johannes Kepler
		Johannes Kepler was born in the town of Weil der Stadt, Germany, on December 27, 1571.
		Johannes was a very small boy who was frequently ill. At the age of three years he contracted smallpox and lingered close to death for several months.
		Kepler was taught mathematics and astronomy by Michael Mästlin, one of the few astronomy professors of that time who had accepted Copernicus’ idea that the planets, including the earth, revolved around the sun.
	www.answersingenesis.org /creation/v15/i1/kepler.asp (1983 words)

	Kepler Mission > Johannes Kepler (Site not responding. Last check: 2007-10-22)
		Johannes Kepler was born at 2:30 PM on December 27, 1571, in Weil der Stadt, Württemburg, in the Holy Roman Empire of German Nationality.
		Kepler was forced to leave his teaching post at Graz due to the counter Reformation because he was Lutheran and moved to Prague to work with the renowned Danish astronomer, Tycho Brahe.
		Kepler used the tables to predict a pair of transits by Mercury and Venus of the Sun, although he did not live to witness the events.
	kepler.nasa.gov /johannes (1058 words)

	Johannes Kepler
		Kepler was the Chief founder of modern astronomy.
		Kepler was the first to search for a physical explanation for planetary orbits and he discovered that the orbits are elliptical with the sun at one focus.
		Kepler's position in Linz now became progressively worse, as Counter Reformation Counter Reformation measures put pressure on Protestants in the Upper Austria province of which Linz was the capital.
	www.thocp.net /biographies/kepler_johannes.htm (1094 words)

	Johannes Kepler
		Johannes Kepler was one of the most important scientist in the field of astronomy.
		Kepler's third Law: The squares of the periods of the planets are proportional to the cubes of their semi-major axes.
		Kepler had originally planned on becoming a priest, but was drawn into the world of science.
	www.johanneskepler.com (405 words)

	Johannes Kepler
		Kepler's first two Laws of Planetary Motion were first adumbrated in his 1609 Astronomia Nova, but first laid out in detail together with his Third Law in book IV of his monumental work Epitoma astronomia Copernicanae, published between 1617 and 1621.
		In 1627 Kepler also finally published what was to be the crowning (but somewhat belated) achievement of Tycho Brahe's career: the Rudolphine Tables of planetary positions.
		Because of Kepler's position as Imperial Mathematician, his prompt and enthusiastic public endorsement of Galileo's telescopic discoveries did a lot to publicize the latter's fame in northern Europe.
	www.hao.ucar.edu /Public/education/bios/kepler.html (641 words)

	Johannes Kepler: The Laws of Planetary Motion
		Kepler's Third Law implies that the period for a planet to orbit the Sun increases rapidly with the radius of its orbit.
		As an example of using Kepler's 3rd Law, let's calculate the "radius" of the orbit of Mars (that is, the length of the semimajor axis of the orbit) from the orbital period.
		Kepler's Laws Calculator that allows you to make simple calculations for periods, separations, and masses for Keplers' laws as modified by Newton (see subsequent section) to include the effect of the center of mass.
	csep10.phys.utk.edu /astr161/lect/history/kepler.html (1409 words)

	Johannes Kepler Feedback
		Kepler was a brilliant thinker, who was able to see beyond the intellectual and philosophical limits of his time and culture, in spite of the fact that he was also firmly entrenched in that philosophy.
		Kepler was not a mathematical genius in the traditional sense of the phrase.
		Kepler was destined to have the support of others (south node on the 8th of shared resources conjunct venus) and he would struggle all his life to develop his own material resources (north node on second).
	www.astrodatabank.com /NMKeplerJohannesFB.htm (4234 words)

	Johannes Kepler (Site not responding. Last check: 2007-10-22)
		Johannes Kepler was born on December 27, 1571 in Weil der Stadt, Germany.
		Kepler's grandfather was supposedly from a noble background, and once Mayor of Weil.
		Kepler's mother, Katherine, was raised by an aunt who was eventually burned as a witch.
	www.geocities.com /CapeCanaveral/Hangar/6580/webdoc1.htm (168 words)

	Johannes Kepler
		Johannes Kepler was born on December 27, 1571, a premature child.
		Kepler's grandfather was Mayor of Weil, Kepler describes his grandmother as "restless, clever and lying, but devoted to religion; slim and of a fiery nature; vivacious, an inveterate troublemaker; jealous, extreme in her hatreds, violent, a bearer of grudges...and all her children have something of this".
		However, Kepler was happy that Tycho suggested he work on the orbit of Mars, which was one of the least circular orbits, and hence a good test of new models, and for which Tycho would be obliged to give him a substantial amount of data.
	galileoandeinstein.physics.virginia.edu /1995/lectures/kepler.html (1706 words)

	Johannes Kepler
		Kepler was able to make so significant a contribution to astronomy and physics because of the precise data he had acquired from Tycho Brahe.
		Kepler was a Copernican and also originally believed that the planets should follow perfectly circular orbits.
		Kepler was a mystic who sought to develop cosmology and he knew he needed access to Brahe's excellent data.
	www.calstatela.edu /faculty/kaniol/a360/kepler.htm (1987 words)

	Kepler, Johannes. The Columbia Encyclopedia, Sixth Edition. 2001-05
		On Tycho’s death (1601) Kepler succeeded him as court mathematician to Holy Roman Emperor Rudolf II.
		In this celebrated work were stated the first two of what became known as Kepler’s laws.
		He wrote an epitome of the astronomy of Copernicus in 1618, and in 1619 De cometis and Harmonice mundi (in which was announced the third of Kepler’s laws).
	www.bartleby.com /65/ke/Kepler-J.html (234 words)

	Highbeam Encyclopedia - Search Results for Kepler, Johannes (Site not responding. Last check: 2007-10-22)
		Kepler, Johannes KEPLER, JOHANNES [Kepler, Johannes], 1571-1630, German astronomer.
		Kepler's laws KEPLER'S LAWS [Kepler's laws] three mathematical statements formulated by the German astronomer Johannes Kepler that accurately describe the revolutions of the planets around the sun.
		Kepler's laws opened the way for the development of celestial mechanics, i.e., the application of the laws of
	www.encyclopedia.com /articles/06915.html (651 words)

	Johannes Kepler
		The son of peasants, Kepler's prodigious ability placed him as a student in the University of Tubingen, where he was strongly influenced by Copernican teachings.
		It was there Kepler discovered his laws of planetary motion governing elliptical orbits, which were motivated by his desire to prove the Pythagorean Music of the Spheres.
		Kepler's mathematical genius allowed him to see mathematical formulas of planetary orbit hidden in the rough pre-telescope observational data of Tycho Brahe.
	www.astrodatabank.com /NMKeplerJohannes.htm (673 words)

	Tycho Brahe and Johannes Kepler
		Kepler realized that Tycho's work could settle the question one way or the other, so he went to work with Tycho in 1600.
		Kepler was the first to state clearly that the way to understand the motion of the planets was in terms of some kind of force from the sun.
		However, in contrast to Galileo, Kepler thought that a continuous force was necessary to maintain motion, so he visualized the force from the sun like a rotating spoke pushing the planet around its orbit.
	galileoandeinstein.physics.virginia.edu /lectures/tycho.htm (582 words)

	Johannes Kepler
		Figure 2: Kepler's model to explain the relative distances of the planets from the Sun in the Copernican System.
		Kepler went on to provide the beginning of a theory of the telescope in his
		Kepler went on to provide the beginning of a theory of the telescope in his Dioptrice, published in 1611.that the Christian calendar was in error by five years, and that Jesus had been born in 4 BC, a conclusion that is now universally accepted.
	cnx.org /content/m11962/latest (1357 words)

	[No title] (Site not responding. Last check: 2007-10-22)
		Johannes Kepler (1571-1630), a German mathematician, formulated the three laws of planetary motion that bear his name by using the astronomical observations of by Tycho Brahe, for whom he worked briefly.
		Kepler was instrumental in the development of early telescopes.
		He invented the convex eyepiece, which allowed an expanded field of vision, and discovered a means of determining the magnifying power of lenses.
	www.phy.hr /~dpaar/fizicari/kepler.html (63 words)

	APOD: 2001 January 14 - Kepler Discovers How Planets Move
		Kepler was an assistant to the most accurate astronomical observer of the time,
		Kepler's First Law), that planets move proportionally faster in their orbits when they are nearer the Sun (
		Kepler lived from 1571 to 1630, during the time of discovery of the telescope.
	antwrp.gsfc.nasa.gov /apod/ap010114.html (154 words)

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