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	Timocharis - Wikipedia, the free encyclopedia
		Timocharis of Alexandria (circa 320 BC - 260 BC) was a Greek astronomer and philosopher.
		Timocharis was the first known astronomer to make a recorded observation of the planet Mercury, in 265 BC.
		The Timocharis crater on the Moon is named in his honor.
	en.wikipedia.org /wiki/Timocharis (143 words)

	Timocharis (crater) - Wikipedia, the free encyclopedia
		Timocharis is a prominent lunar impact crater located on the Mare Imbrium.
		The closest crater of comparable dimensions is Lambert crater to the west.
		The smaller Feuillée and Beer paired craters lie to the east of Timocharis.
	en.wikipedia.org /wiki/Timocharis_(crater) (192 words)

	Timocharis -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-22)
		Timocharis of Alexandria (circa 320 BC - 260 BC) was a (A native or inhabitant of Greece) Greek (A physicist who studies astronomy) astronomer and (A specialist in philosophy) philosopher.
		Likely born in (The chief port of Egypt; located on the western edge of the Nile delta on the Mediterranean Sea; founded by Alexander the Great; the capital of ancient Egypt) Alexandria, he was a contemporary of (Greek geometer (3rd century BC)) Euclid.
		Timocharis was the first known astronomer to make a recorded observation of the planet (A heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures) Mercury, in 265 BC.
	www.absoluteastronomy.com /encyclopedia/t/ti/timocharis.htm (161 words)

	Eight Day Moon
		On the northern shore of Imbrium lies the distinctive dark circle of Plato, an obvious class 5 object.
		South-south-east of Eratosthenes by two Crisium lengths is Herschel, class 1 and similar in appearance to Timocharis.
		Immediately to its south is the northernmost of a chain of three diminishing craters: large class 5 walled plain Ptolemaeus (Ptolemy), and ring mountains, class 5 Alphonsus, and class 3 Arzachel.
	www.inconstantmoon.com /day_08.htm (704 words)

	timocharis (Site not responding. Last check: 2007-10-22)
		Timocharis (circa 320 B.C - 260 B.C) was a Greek philosopher.
		Timocharis was probably born in Alexandria and was Euclid's (circa 365 BC-275 BC) contemporary.
		Practically nothing more is known from his life.
	www.yourencyclopedia.net /timocharis.html (119 words)

	ch5.4
		Note that the abundance of boulders in the flow is much less than in nearby areas, presumably because the flow has buried most of the boulders in its path.
		The sparsity of small superposed craters on the walls of Timocharis-in contrast to their density on its floor and rim-is caused by the erosive effect of downslope movement of material on the steep walls.
		Timocharis, like many other young impact craters of similar size, possesses a well-defined central peak complex.
	www.hq.nasa.gov /office/pao/History/SP-362/ch5.4.htm (2227 words)

	Timocharis (crater) - Encyclopedia Glossary Meaning Explanation Timocharis (crater) (Site not responding. Last check: 2007-10-22)
		Timocharis (crater) - Encyclopedia Glossary Meaning Explanation Timocharis (crater).
		Here you will find more informations about Timocharis (crater).
		letter on the side of the crater mid-point that is closest to Timocharis crater.
	www.encyclopedia-glossary.com /en/Timocharis-crater.html (232 words)

	Timocharis
		This led to his discovery of the precession of the equinoxes, which was critical in developing the science of astronomy.
		So the most important thing Timocharis did was make notes about everything he saw, allowing others to use the records to develop science further.
		At the time I adopted the name, I was doing a whole lot of that kind of thing, certainly without the same degree of effect, but we emulate those we admire, not those we equal.
	ephemeris.sjaa.net /0208/e.html (726 words)

	Observing the Sky » Moon: Day 8 - “Hints of Timocharis”
		It was all cloudy here yesterday and most of the night, not to clear until the waxing gibbous Moon was within 5 degrees of my western horizon.
		At this time though, the Apennines Mountains still have much shade against their west side, and only the interior west wall (top of) of deep Eratosthenes is brightly sunlit.
		Plato at the north side of this vast mare is all dark inside yet, but Archimedes a little further east only has a sunlit floor.
	www.observingthesky.org /index.php?p=817 (253 words)

	ch5.3
		The most conspicuous chain and the chain at the left center of the picture are secondary to Eratosthenes, 250 km to the southeast in the direction of the arrows labeled E. Lying athwart these chains is a large younger cluster (arrow C) secondary to Copernicus, 400 km to the southwest.
		The chains in the extreme upper right corner (arrow T) are secondary to Timocharis whose rim is only 35 km northeast of the pictured area.
		The distance from the lower edge of the picture to the center of Copernicus is 400 km.
	history.nasa.gov /SP-362/ch5.3.htm (2524 words)

	Astronomical Games: June 2005
		It might be that Timocharis had just decided not to record it.
		However, Hipparchus found that the coordinates were all off in the same direction, something that would be difficult to attribute to random variation or error.
		It was as though Hipparchus and Timocharis had observed the same sky, but Hipparchus's sky had been turned an extra degree or two, in a way that had nothing to do with daily rising and setting.
	astro.isi.edu /games/precession.html (3705 words)

	Ephemeris (Site not responding. Last check: 2007-10-22)
		Timocharis is a nice little crater a third of the way between Erathosthenes and Plato, and it's best seen on the the eighth day, right after the first quarter moon.
		Being something of a lunatic myself, I enjoyed the writings of this Timocharis, and told him so.
		Soon I was reading the online Ephemeris and helping David with some logistics in getting John Dobson to speak to the SJAA in 1998.
	ephemeris.sjaa.net /9902/f.html (770 words)

	CATHOLIC ENCYCLOPEDIA: Astronomy
		He invented trignometry, and constructed a catalogue of 1080 stars, incited, according to Pliny's statement, by a temporary stellar outburst in Scorpio (134 B.C.).
		Comparing, as work progressed, his own results with those obtained 150 years earlier by Timocharis and Aristyllus, he detected the slow retrogression among the stars of the point of intersection of the celestial equator with the ecliptic, which constitutes the phenomenon of the precession of the equinoxes.
		The circuit is completed in 25,800 years; hence the tropical year, by which the seasons are regulated, is shorter than the sidereal year by just twenty-one minutes, the equinox shifting backward to meet the sun by the annual amount of 50.25 inches.
	www.newadvent.org /cathen/02025a.htm (4544 words)

	Star Catalogs
		What we know is that the ancient Greeks recorded their observations and measurements, and thus were compiling early star catalogs.
		One of the earliest known compilation was created by Timocharis of Alexandria about 300 B.C.: this was later used by Hipparchus (among others, e.g.
		Early discoveries involving star catalogs include the precession of the equinoxes, a consequence of the precession of Earth's axis in roughly 26,000 years.
	www.seds.org /~spider/spider/Misc/star_cats.html (698 words)

	CloudyNight's forums: Re: Oct's eclipse, crater timings (Site not responding. Last check: 2007-10-22)
		Grimaldi, Billy, Kepler, Aristarcus, Campanus, Copernicus, Birt, Pytheas, Tycho, Timocharis, Harpalus, Manilius, Pico, Dionysius, Plato, Menelaus, Plinius, Censorinus, Eudoxus, Aristoteles, Goclenius, Taruntius, Proclus, and Langrenus.
		Harpalus, Aristarcus, Grimaldi, Plato, Kepler, Pico, Billy, Pytheas, Timocharis, Copernicus, Aristoteles, Eudoxus, Campanus, Manilius, Birt, Menelaus,Tycho, Plinius, Dionysius, Proclus, Censorinus, Taruntius, Goclenius, and Langrenus.
		There are three full Moon images in my gallery, one for each scope orientation.
	cloudynights.com /ubbthreads/showthreaded.php/Cat/0/Number/231420/.../1 (139 words)

	Farnese Globe-Journal for the History of Astronomy
		Given the globe's huge misplacement (order-of-magnitude 10°) of various key stars, such as Gorgon-head βPersei (which was specifically important to Hipparchos, as his sole 1h Hour-Star), one could persuasively argue that, if the globe's source was a catalog at all, it was probably small.
		We know from Ptolemy (Almajest 7.3 [Toomer Alm 1984 pp.331-332]; D.Rawlins Isis 73:259-265 [1982] p.263) that, as early as c 300-260 BC, Timocharis and Aristyllos were recording at least 18 bright stars' positions in the equatorial coordinate frame, to an accuracy on the order of about 1/10 of a degree.
		A particularly useful sort of catalog would have been a list of Hour-Stars for time-keeping; and precisely such stars (on-colure) are those that provide the most coherent (least sprawling) sample as evidence in favor of a catalog source for the Farnese globe.
	www.dioi.org /qqq.htm (5358 words)

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