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Topic: Hipparchos

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Hipparchus

3rd century BC

2nd century BC

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460s BC

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16th century BCE

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Ptolemaic dynasty

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Ptolemy XII of Egypt

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	User:Looxix/MKK < User:Looxix (Site not responding. Last check: 2007-11-05)
		Hipparchos was born in Nicaea (Greek Nikaia), ancient district Bithynia (modern-day Iznik[?] in province Bursa, Turkey).
		Hipparchos is believed to have died on the island of Rhodes, where he spent most of his later life.
		Hipparchos had in 134 B.C. ranked stars in six magnitude classes according to their brightness: he assigned the value of 1 to the 20 brightest stars, to weaker ones a value of 2, and so forth to the stars with a class of 6, which can be barely seen with the naked eyes.
	www.termsdefined.net /us/user:looxix---mkk.html (2067 words)

	Het universum : van ether en vuur?
		Hipparchos' model van de maan was overigens ook niet erg succesvol, maar ook Ptolemaios zou er later slechts met veel moeite in slagen om de baan van de maan te berekenen.
		Hipparchos' maanbaan (klinkt heel poëtisch) bestond uit een deferent (de grote cirkel, zie Appolonios) die hij op 60 stelde (de grootte van de cirkels maakt op zich niet uit, het gaat om de verhoudingen).
		Natuurlijk dacht Hipparchos niet dat de aarde verantwoordelijk was voor deze geleidelijke verrandering van de sterrenhemel, maar dacht dat de sterren (of beter gezegd "de sfeer waar de sterren aan vast zitten") draaide.
	mediatheek.thinkquest.nl /~lla015/Astronomie/Vuurenether3.php (1903 words)

	Wall Clock, Station & unusual large repro antique clocks by Thomas Kent & Newgate
		Ecliptical coordinates were used by Hipparchos and Ptolemy in their star catalogues, and were the standard of celestial measurement until the Renaissance, when they were replaced by the equatorial coordinate system.
		Hipparchos used stereography to create a projection of the celestial sphere from its southern celestial pole to its equatorial plane.
		The invention of stereography by Hipparchos made the construction of a dynamic representation of the heavens possible through the combination of planispheric projections with the clepsydra.
	www.curioshop.co.uk (3040 words)

	BMC Graduate Symposium- Kent Webb, The Athenian Tyrannicides, Icons of a Democratic Society
		In this regard Hipparchos is an example of one of the most common topoi of this discourse: the sexually wanton despot indexing his authority on the bodies of women, daughters and boys.
		Nevertheless, in the tyrannicide tradition the representation of Hipparchos is perfectly consistent with this discourse, for he not only tries to gratify his erotic desires in spite of Harmodios' relationship with another man. But when Hipparchos is thwarted, he exercises his authority to exact a measure of petty revenge.
		And Harmodios' symbolic significance in particular lay in the fact that Hipparchos' hubris potentially stood to reduce the young man to the margins of the polis, which were, ideologically speaking, the realm of barbarians, metics and slaves.
	www.brynmawr.edu /Acads/Arch/guesswho/webb.html (4944 words)

	History of Ancient Athens - The Legend
		Hipparchos, who had inherited from his father the love of literary, invited the famous poets Simonides and Anakreon and furnished the highways with Herms, which marked the boundaries of public and sacred precincts.
		Hipparchos made repeated propositions to Harmodios, which were repelled.
		Hipparchos took then revenge by insulting the sister of Harmodios, prohibiting her to take part in a religious procession, as a basket carrier.
	www.sikyon.com /Athens/ahist_eg01.html (5969 words)

	HIPPARCHOS
		Hipparchos was fond of amusements, and interested in love affairs and the arts—he was the man who sent for Anacreon and Simonides and their associates and the other poets.
		From the year when Harmodios and Aristogeiton killed Hipparchos the son of Peisistratos and his successor, and when the Athenians expelled the Peisistratidai from the Pelasgic Wall, 248 years; the archon was Harpaktides (511/10 B.C.).
		Hipparchos the son of Peisistratos built a wall around the Akademia, and he compelled the Athenians to pay a great deal of money for it.
	www.csun.edu /%7Ehcfll004/hipparchos.html (1076 words)

	Astrology - Precession of the Equinoxes - © Dr Shepherd Simpson
		The famous Greek astrologer Hipparchos [c 190 - 120 BC] is thought to have been the first person to realise the Vernal Equinox Point was moving relative to the stars.
		However Hipparchos did not realise that this was due to the Precession of the Earth itself.
		Hipparchos followed a Celestial Sphere view of the Solar System, and it would not have occurred to him that the Movement of the Vernal Equinox Point had anything to do with the movement of the Earth itself.
	www.geocities.com /astrologyages/precessionequinoxes.htm (722 words)

	three (Site not responding. Last check: 2007-11-05)
		Harmodios and Aristogeiton are murdering Hipparchos, the brother of the tyrant Hippias.
		Hipparchos is in the middle, attacked from both sides.
		The excitement and confusion of the moment is indicated by the crossing of axes of composition -- each of the two outer figures move and look in one direction with their spears going in the opposite direction; the central figure moves right but turns his head and extends his arm left.
	mkatz.web.wesleyan.edu /thucydides_lecture/twenty_three_c.htm (181 words)

	Hipparchos - rFind.net
		Hipparchos (grekiska, på latin Hipparchus), föddes sannolikt i Nicaea och levde omkring 190-125 f.
		Hipparchos uppehöll sig en längre tid på Rhodos, möjligen tidvis även i
		Hipparchos upptäckte årstidernas olika längd och förbättrade metoderna för bestämmandet av de astronomiska perioderna.
	www.rfind.net /info/Hipparchos (347 words)

	Hipparchos (Site not responding. Last check: 2007-11-05)
		Hipparchos is vooral bekend omdat hij als eerste de precessie van de aardas had gemeten.
		De as van de aarde snijdt de hemelbol in twee punten (De hemelbol is een denkbeeldige gigantisch grote bol, met de aarde in het middelpunt.) deze punten zijn de hemelpolen.
		Zoals al eerder gezegd is hipparchos een van de wetenschappers die de afstand tussen de aarde en de maan heeft berekend.
	anw.hml.nl /Werkstukken/Ghislaine_Crasborn_en_Jolien_Schiphorst/Hipparchos (531 words)

	ISLAMIC CONTRIBUTIONS TO MODERN SCIENTIFIC METHODS
		Hipparchos, in compiling his catalog of the positions of the stars in 179 B.C. noticed how much the stellar positions had changed from the time of the Babylonian's star catalogs and gave a value for the rate of precession.
		Ptolemy took Hipparchos catalog and calculated mathematically the corrections necessary to update the catalog for the precession given by Hipparchos (and adding some additional stars as well) and published it saying he observed the positions.
		Had Ptolemy actually observed the stars from Hipparchos' catalog, he would have seen that the value of precession was off and could have made a correction to it, giving the world an improved value for the rate of precession.
	www.minaret.org /f&se1.htm (7373 words)

	[No title]
		In the event, only Hipparchos was assassinated while Harmodios was killed instantly and Aristogeiton not long afterwards and Hippias remained the tyrant of Athens for another four years.
		As liberators and agents of the goddess, the heroes signalled Athena's approval of the killing of Hipparchos, and thereby the establishment of the new order, for whose cause she had abandoned the Peisistratidai.
		As heroes, their cult accompanied that of Athena and, through it, the goddess indicated her approval of their deed, the killing of the tyrant Hipparchos, and the result, the liberation of her city and the establishment of the democratic government.
	www.arth.upenn.edu /fall98/101/lec.html (5266 words)

	Hipparchos (Site not responding. Last check: 2007-11-05)
		Above all, Hipparchos represents the cross-cultural fusion of the qualitative, geometric tradition of early Greek astronomy (e.g., Eudoxos) and the quantitative mathematical tradition of Babylonian astronomy (e.g., Kidinnu).
		With Hipparchos, Babylonian (1) numerical parameters, (2) astrological practices and beliefs, and (3) ideals of quantitative prediction all were appropriated into Hellenistic astronomy.
		A similar point is illustrated in the succinct description of Hipparchos you already encountered in Stars over Ancient Babylon: "In early Greek natural philosophy, there was nothing comparable to the Babylonian achievement in astronomy, until cultural interchange between Mesopotamia and Greece increased after Alexander the Great.
	homepage.mac.com /kvmagruder/hsci/05-Hellenistic/hipparchos.html (320 words)

	[No title] (Site not responding. Last check: 2007-11-05)
		Please review any upcoming STIS observations of bright stars, where Hipparchos coordinates are used, particularly those with significant proper motion.
		We had a failed acquisition due to using the Hipparchos Input Catalog, as recommended.
		His program HIPPCOORD can be used to compare the Hipparchos Input and Output coordinates.
	hires.gsfc.nasa.gov /stis/science/notice.txt (469 words)

	Ptolemy - FreeEncyclopedia (Site not responding. Last check: 2007-11-05)
		In this work Ptolemy compiled the astronomical knowledge of the ancient Greek and Babylonian world; he relied mainly on the work of Hipparchos of 3 centuries earlier.
		Ptolemy formulated a geocentric model (see: Ptolemaic system) of the solar system which remained the generally accepted model in the Western and Arab worlds for more than 1300 years.
		Its list of 48 constellations is ancestral to the modern system of constellations, but unlike the modern system they did not cover the whole sky.
	openproxy.ath.cx /pt/Ptolemy.html (781 words)

	Political Murder in Agora (Site not responding. Last check: 2007-11-05)
		He invited Harmodios’ little sister to carry a basket in a religious procession (a great honor) and then claimed that he had never invited her at all because she was unworthy.
		Aristogeiton and Harmodios immediately became legendary heroes and were honored as tyrannicides because many Athenians believed (wrongly) that Hipparchos was tyrant at the time of the assassination (Thuc.
		Herodotus points out that that the assassination did not end the tyranny (which lasted for 3 more years) and all it accomplished was to make Hippias and his other brothers angry (6.123.2).
	depthome.brooklyn.cuny.edu /classics/dunkle/athnlife/H&A.htm (391 words)

	Movement of the Vernal Equinox Point - © Dr Shepherd Simpson
		However, not long before this date the famous astrologer Hipparchos [c 190 to 120 BC] wrote On the Change in Position of the Solstitial and Equinoctial Points, the first account we know of of the observation of the movement of the Vernal Equinox Point.
		This work is now lost to us, but Hipparchos seems to have noted - correctly - that the start of Aries was now at the Vernal Equinox Point.
		He was essentially ignored by other astrologers who incorrectly continued to use the older Kidinnu and Nabu-rimanni systems for relating the Vernal Equinox Point to the start of Aries.
	www.geocities.com /astrologyages/movementofthevep.htm (1747 words)

	Hipparchos: Definition and Links by Encyclopedian.com - All about Hipparchos (Site not responding. Last check: 2007-11-05)
		Hipparchos: Definition and Links by Encyclopedian.com - All about Hipparchos
		This is an indication that Hipparchus' work was known to Chaldeans.
		Another value for the year that is attributed to Hipparchos is 365 + 1/4 + 1/288 days (= 365.253472...
	www.encyclopedian.com /hi/Hipparchos.html (2458 words)

	The Ancient Star Catalog: a question of authorship
		He suggested that Hipparchos had really observed the catalog in the second century BC; and that Ptolemy had plagiarized the catalog of Hipparchos, by precessing all of the longitudes by 2 2/3 degrees while leaving the latitudes unchanged.
		The actual precession between Hipparchosí time and Ptolemy's was closer to 3 2/3 degrees; so the one-degree difference nicely accounts for the systematic longitude error.
		Although the errors in the solar theory were small in Hipparchosí day, by Ptolemy's day these solar position errors had risen to about a degree, in the same direction as the longitude errors of the catalog.
	www.nd.edu /~histast4/exhibits/papers/Pickering (2184 words)

	Bryn Mawr Classical Review 94.06.14
		The unraveling of this myth, he asserts (Chapter 1 "Introduction"), yields not only a more accurate history of sixth-century Athens under the Peisistratids but also a better understanding of fifth-century Athenian psychology.
		One wonders, however, whether Hipparchos really could have been elected in 496 if he had seemed politically close to the expelled tyrants, and Herodotos (6.104.2, 136) speaks only of Miltiades' own (allegedly) excessive behavior.
		In Chapter 4 ("Components of Revision in the Tradition about the Tyranny"), L. discusses "genos-tradition" and "demos-tradition": "it was demos-tradition that Harmodios and Aristogeiton slew the tyrant Hipparchos and freed Athens; genos-tradition (i.e., Alkmeonid) that they did not....
	ccat.sas.upenn.edu /bmcr/1994/94.06.14.html (664 words)

	Hipparchos von Nikaia
		Der Astronom Hipparchos von Nikaia legte besonderen Wert auf die Beobachtung und wandte sich gegen die Spekulation.
		Hipparchos von Nikaia führte die Trigonometrie in die Astronomie ein und erfand neue astronomische Instrumente.
		Anknüpfend an Apollonios von Perge brachte Hipparchos von Nikaia die Epizyklentheorie in die Planetentheorie ein.
	www.philosophenlexikon.de /hippar-n.htm (129 words)

	PRECESSION (Site not responding. Last check: 2007-11-05)
		However, in the time of Hipparchos (2nd century BC), the Sun was in Aries at the vernal equinox.
		For example, if a contemporary of Hipparchos' were born in early March, the Sun would then have been in the constellation of Pisces, and his astrological sign would have been Pisces.
		But someone born in early March in our time would still be given the sign Pisces by an astrologer, despite the fact that the Sun was actually in the constellation of Aquarius at the time of birth.
	homepage.mac.com /kvmagruder/bcp/precession/horo.htm (397 words)

	Kids.net.au - Encyclopedia User talk:XJamrastafire -
		Tom Peters 20030601: I saw you haven't addressed my comments on Hipparchus yet (I suppose you are away for the weekend).
		I mainly re-organized the existing content, pulling the scattered subject matter under a limited number of subjects.
		Notice the duplications; these, errors, and elaborations are to be removed later, preferably after moving&renaming the existing "Hipparchus" page to "Hipparchos" (preserving history), or otherwise re-edit the Hipparchus page according to my proposals.
	www.kids.net.au /encyclopedia-wiki/us/User_talk:XJamrastafire (913 words)

	LETTERS From CAMP Rehoboth - May 4, 2001 - Past Out
		When Hipparchos realized he didn’t stand a chance with Harmodios, he took out his disappointment on the young man’s family.
		Alarmed that their plot was about to be exposed, the lovers rushed over to Hipparchos and slew him with daggers.
		Harmodios was killed instantly by Hipparchos’ bodyguard, but Aristogeiton managed to escape.
	www.camprehoboth.com /issue05_04_01/pastout.htm (587 words)

	Astronomy: Renaissance Personalities
		In Copernicus's (and Aristarchus's) view, the apparent motion of the sun 1 degree per day eastward through the stars was due to the Earth's motion, not the sun's.
		He was impressed that the conjunction was predicted by Ptolemy's model, but disgusted that the prediction was several days off.
		At some point he realized that the observational data - the positions of the planets recorded by Hipparchos - could be greatly improved, and he turned himself to this task, aided by the fact that he was independently wealthy.
	astro.wsu.edu /worthey/astro/html/lec-persons.html (2282 words)

	: Class TychoFeed (Site not responding. Last check: 2007-11-05)
		Whenever a proper motion is given, the hipparchos epcoh of 1991.5 is promoted to 2000.
		The catalog with the closed binaries solution of the hipparchos catalog can be feeded (with or without hip2) with the keyword comp on the command line.
		The right order to fill it, is to start with the Hipparchos catalog, then proceed to Tycho1 and end the data base build-up with Tycho2.
	www.aip.de /~granzer/javadoc/standard/mysql/TychoFeed.html (1326 words)

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