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Topic: Giuseppe Piazzi

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	Giuseppe Piazzi - Wikipedia, the free encyclopedia
		He was not able to observe it long enough (it was soon lost in the glare of the Sun) to compute its orbit with existing methods, but the renowned mathematician Carl Friedrich Gauss developed a new method of orbit calculation that allowed astronomers to locate it again.
		After its orbit was better determined, it was clear that Piazzi's assumption was correct and this object was not a comet but more like a small planet.
		Piazzi named it "Ceres Ferdinandea", after the Classical Greek and Sicilian goddess of grain and King Ferdinand IV of Naples and Sicily.
	en.wikipedia.org /wiki/Giuseppe_Piazzi (509 words)

	1 Ceres - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-07)
		Piazzi was searching for a star listed by as Mayer 87 because it was not in Mayer's zodiacal catalogue in the position given (it eventually transpired that Wollaston had made a mistake —the star was in fact).
		Instead, Piazzi found a moving star-like object, which he thought at first was a comet.
		After the discoverer of Ceres, it was nicknamed "Piazzi." In 2004, Ceres was studied with the Keck Telescope.
	www.northmiami.us /project/wikipedia/index.php/1_Ceres (733 words)

	1 Ceres - Wikipedia, the free encyclopedia
		It was discovered on January 1, 1801, by Giuseppe Piazzi.
		Piazzi was searching for a star listed by Francis Wollaston as Mayer 87 because it was not in Mayer's zodiacal catalogue in the position given (it eventually transpired that Wollaston had made a mistake —the star was in fact Lacaille 87).
		Piazzi observed Ceres a total of 24 times, the final time on February 11, when illness interrupted.
	en.wikipedia.org /wiki/1_Ceres (1380 words)

	Giuseppe Piazzi (Site not responding. Last check: 2007-10-07)
		Eros is a slab or a gravel heap.
		Giuseppe Piazzi fue un astrónomo y sacerdote italiano.
		Piazzi lo bautizó con el nombre de Ceres Ferdinandea, por la diosa griega y siciliana, y por el rey Fernando IV de Nápoles y Sicilia.
	enciclopedia.cc /Giuseppe_Piazzi (352 words)

	Piazzi, Giuseppe -- Encyclopædia Britannica
		Piazzi became a Theatine monk in about 1764 and a professor of theology in Rome in 1779, and in 1780 he was appointed professor of higher mathematics at the Academy of Palermo.
		At first Piazzi thought that he had discovered a comet; however, after the orbital elements of the object had been computed it became clear that the object moved in a planetlike orbit between the orbits of Mars and Jupiter.
		The Italian prose writer and poet Giuseppe Parini is remembered for a series of beautifully written odes and particularly for Il giorno (The Day), a satiric poem on the selfishness and superficiality of the Milanese aristocracy.
	www.britannica.com /eb/article-9059895?tocId=9059895 (680 words)

	Ivars Peterson's MathTrek - Gauss's Orbits
		Piazzi's observations of the mysterious object on successive nights revealed that it moved slowly against its starry backdrop, first drifting backward, then reversing direction and overtaking the background stars.
		Unsure whether the object was a comet or a planet, Piazzi watched it regularly until Feb. 11, when he fell ill. By the time he recovered a few days later, he was able to make only one more observation before the object advanced sufficiently close to the sun to disappear in its glare.
		Assuming that Piazzi's object circumnavigated the sun on an elliptical course and using only three observations of its place in the sky to compute its preliminary orbit, Gauss calculated what its position would be when the time came to resume observations.
	www.maa.org /mathland/mathtrek_4_19_99.html (1158 words)

	ON THE HISTORY OF THE PALERMO ASTRONOMICAL
		Piazzi had, in fact, already made up his mind: for the new Observatory he was going to have only the best, and best at that time meant Ramsden.
		Piazzi was succeeded by Nicolò Cacciatore (1780-1841), who had served for many years as assistant in the Observatory.
		The scientific decline of the Palermo Observatory that followed Piazzi's death was thus due both to the incapability of its head and to the unfavourable political situation.
	www.astropa.unipa.it /HISTORY/history.htm (3251 words)

	Giuseppe Piazzi, Aristarchus: famous astronomers quizzes
		Giuseppe Piazzi discovered the first asteroid, Pallas, on January 1, 1805.
		Giuseppe Piazzi discovered the first asteroid, Vesta, on January 1, 1810.
		Giuseppe Piazzi discovered the first asteroid, Ceres, on January 1, 1801.
	www.galileo-galilei.org /astronomers/giuseppe-piazzi.html (177 words)

	CATHOLIC ENCYCLOPEDIA: Piazzi
		Piazzi proposed the name of Ceres Ferdinandea, in honour of his king.
		The king desired to strike a gold medal with Piazzi's effigy, in commemoration, but the astronomer requested the privilege of using the money for the purpose of a much-needed equatorial telescope.
		In 1812 he received the commission to reform the weights and measures of Sicily in accordance with the metric system.
	www.newadvent.org /cathen/12072d.htm (584 words)

	Giuseppe Piazzi biography .ms (Site not responding. Last check: 2007-10-07)
		He was born in Ponter (Veltlin) on July 7, 1746, and died in Naples on July 22, 1826.
		He was not able to observe it long enough to compute its orbit with existing methods, but the renowned mathematician Carl Friedrich Gauss developed a new method of orbit calculation that allowed astronomers to locate it again.
		In 1923, the 1000th asteroid to be discovered was named Piazzia in his honour.
	giuseppe-piazzi.biography.ms (481 words)

	Giuseppe Piazzi - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-07)
		He was born in (Valtellina) on July 7, 1746, and died in Naples on July 22, 1826.
		In 1923, the 1000th asteroid to be numbered was named in his honour.
		This page was last modified 07:32, 22 Jun 2005.
	www.northmiami.us /project/wikipedia/index.php/Giuseppe_Piazzi (544 words)

	The Origin of the Palermo Astronomical Observatory Library: Giuseppe Piazzi's (1746-1826) Books
		The rationale behind the third criterium is that, no longer being the Director, Piazzi had ceased to acquire publications for the Observatory and thus all new acquisitions were by default the property of the institution or the Director.
		As belonging to Piazzi, for instance, are indicated only the volumes of the Philosophical Transactions of the Royal Society of London or the Mémoires de l'Académie Impériale des Sciences, Littérature et Beaux-Arts de Turin published prior to 1817.
		Monticelli was Secretary of Accademia delle Scienze di Napoli and good friend of Piazzi's, who was the President of the same Academy, thus it is highly likely that this publication was given to Piazzi by the author.
	www.eso.org /gen-fac/libraries/lisa3/foderag.html (1492 words)

	Astro-Fact (Site not responding. Last check: 2007-10-07)
		Giuseppe Piazzi (1746-1826) was a monk of the Theatine Order but his interest were not limited to theology.
		In 1814 he published a catalogue of 7646 stars visible from Sicily and proposed that proper motion was a common property of stars and not only of a few nearby ones.
		He obtaines three fixes of its position but suddenly was struck with the flu and could not continue his measurements.
	ottawa.rasc.ca /astronomy/astro_facts/g_piazzi.html (167 words)

	Raymond E. White: INSAP3 (Site not responding. Last check: 2007-10-07)
		Giuseppe Piazzi discovered the first asteroid, or minor planet, and promptly named it "Ceres," after the classical goddess of the Earth, and the "patron goddess" for Sicily.
		Piazzi made his discovery visually with the use of the Ramsden Circle at the Palermo Observatory.
		A plaster bust of Giuseppe Piazzi; notice the image of the Ramsden Circle cast into the left shoulder of the bust.
	ethel.as.arizona.edu /~white/insap/insap3.htm (2388 words)

	Events - Discovery of First Asteroid, Ceres
		January 1801, in Palermo, the Italian astronomer Giuseppe Piazzi (1746-1826) discovered Ceres, the first and largest asteroid.
		The discovery of Ceres followed that of the planet Uranus, made in 1781 by the British astronomer William Herschel (1783-1822).
		Piazzi's discovery confirmed the so-called "Titius-Bode's law", which assumed the existence of a "fifth planet" between the orbit of Mars and Jupiter.
	www.astropa.unipa.it /Asteroids2001 (142 words)

	Giuseppe Piazzi History Summary (Site not responding. Last check: 2007-10-07)
		astronomer ·; gap · comets ·; the gap · mars · motions · jupiter ·; friedrich gauss · carl friedrich · palermo ·; ceres ·; asteroid ceres ·; giuseppe
		Piazzi was founder and first director of the Palermo Observatory (1790).
		Piazzi named the object Ceres and tracked its motions, which resembled those of a planet or comet.
	www.bookrags.com /history/sciencehistory/giuseppe-piazzi-scit-041234 (113 words)

	AllRefer.com - Giuseppe Piazzi (Astronomy, Biography) - Encyclopedia
		You are here : AllRefer.com > Reference > Encyclopedia > Astronomy, Biographies > Giuseppe Piazzi
		Giuseppe Piazzi[jOOzep´pA pyAt´tsE] Pronunciation Key, 1746–1826, Italian astronomer, a Theatine priest from 1769.
		He became (1781) professor of mathematics at the Univ. of Palermo, supervised construction of a government observatory (opened 1791) at Palermo, and was its first director.
	reference.allrefer.com /encyclopedia/P/Piazzi-G.html (194 words)

	Piazzi, Giuseppe (1746-1826)
		Although he was able to make only three observations of Ceres, Carl Gauss had recently developed a mathematical technique that allowed the orbit to be calculated.
		Piazzi also discovered that the star 61 Cygni has a large proper motion, which led Bessel to choose it as the object of his parallax studies.
		The thousandth asteroid to be found was named after him.
	www.daviddarling.info /encyclopedia/P/Piazzi.html (201 words)

	GIUSEPPE PIAZZI - LoveToKnow Article on GIUSEPPE PIAZZI (Site not responding. Last check: 2007-10-07)
		GIUSEPPE PIAZZI - LoveToKnow Article on GIUSEPPE PIAZZI
		See B. Maineri, L'Astronomo Giuseppe Piazzi (Milan, 1871); R. Wolf, Biographien, Bd.
		To properly cite this GIUSEPPE PIAZZI article in your work, copy the complete reference below:
	www.1911encyclopedia.org /P/PI/PIAZZI_GIUSEPPE.htm (157 words)

	The Hutchinson Encyclopedia: Piazzi, Giuseppe (1746-1826)@ HighBeam Research (Site not responding. Last check: 2007-10-07)
		Piazzi was born in Ponte di Valtellina (now in Switzerland).
		In 1779 he became professor of mathematics at the Palermo Academy in Sicily.
		When it was decided to establish observatories in Palermo and Naples, Piazzi travelled to observatories...
	www.highbeam.com /library/doc0.asp?DOCID=1P1:100166716 (154 words)

	Piazzi, Giuseppe -- Britannica Concise Encyclopedia - The online encyclopedia you can trust!
		Later, with the aid of the viceroy of Sicily, he founded the Observatory of Palermo.
		There also he discovered Ceres and the high proper motion of the important double star 61 Cygni.
		"Piazzi, Giuseppe." Britannica Concise Encyclopedia from Encyclopædia Britannica Premium Service.
	www.britannica.com /ebc/article-9059895 (727 words)

	Ceres -- Britannica Concise Encyclopedia - Your gateway to all Britannica has to offer!
		On Jan. 1, 1801, the Italian astronomer Giuseppi Piazzi found a small planet in the large gap between Mars and Jupiter.
		This planet, later named Ceres, was the first and largest of thousands of asteroids, or minor planets, that have been discovered.
		The discovery of these tiny planets dates from Jan. 1, 1801, when the Italian astronomer Giuseppi Piazzi found the first one and named it Ceres.
	concise.britannica.com /ebc/article-9022142 (741 words)

	Giuseppe Piazzi
		Piazzi, Giuseppe, 1746–1826, Italian astronomer, a Theatine priest from 1769.
		Related content from HighBeam Research on: Giuseppe Piazzi
		Piazzi, Giuseppe (1749-1826) (The Hutchinson Dictionary of Scientific Biography)
	www.infoplease.com /ce6/people/A0838923.html (213 words)

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