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Topic: Clavius (crater)

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	Courses in Astrophotography
		Clavius is one of the Moon's largest and well-known craters and lies in the rugged southern highlands.
		This crater is 40km in diameter, and 3600m from the crater floor to rim.
		This is a well-known lunar impact crater 83km in diameter and lies on the eastern edge of the Mare Imbrium.
	www.damianpeach.com /lunar.htm (3755 words)

	Hitchhiker's Guide to Rukl Chart 72
		Craters C and D were well illuminated as was the area in the immediate vacinity, whil the areas to the West and East of clavius' floor were still in shadow.
		In measuring the diameter of Clavius I found the Eastern rim to entail some 36-42 km of inclined wall from the surrounding terrain to the inner edge of the rim.
		The elevation of the Eastern rim cast a wide shadow across the floor of Clavius towards C and D. This central area was fully illuminated as I noted previously, and it gave a very interesting indication of the contours and slight elevation of Clavius' central floor area around D/C complex.
	www.shallowsky.com /moon/rukl72.html (768 words)

	Clavius crater
		The third largest crater on the visible near side of the Moon and also one of the oldest lunar craters.
		Clavius measures about 225 km (140 miles) across and was formed by an asteroid impact some 4 billion years ago.
		Clavius is large enough to be seen with the unaided eye: one or two days after the Moon's first quarter phase, Clavius is noticeable as a notch in the terminator – the day-night separating line – in the Moon's southern highlands.
	www.daviddarling.info /encyclopedia/C/Clavius_crater.html (278 words)

	Clavius (crater) - Wikipedia, the free encyclopedia
		It is located in the rugged southern highlands of the moon, to the south of the prominent Tycho crater.
		Due to the location of the crater toward the southern limb, the crater appears oblong due to foreshortening.
		The smaller crater Clavius L lies across the western rim, and Clavius K breaks through the west-southwest rim.
	en.wikipedia.org /wiki/Clavius_(crater) (481 words)

	Stargazer Online \|\| Clavius & Tycho (Site not responding. Last check: 2007-10-13)
		Clavius is the large crater at the bottom of this image.
		It is name for Christoph Klau Clavius (1537 - 1612) who was a German mathematician and astronomer and described as the Euclid of the sixteenth century.
		Clavius measures an astounding 225 km (139.8 miles) in diameter.
	www.richardbell.net /Astrophotos/clavius.html (127 words)

	Christopher Clavius - Wikipedia, the free encyclopedia
		Very little is known about Clavius' early life other than the fact that he was born in Bamberg in either 1538 or 1537 (the exact year is somewhat unknown and depends on when one assumes a new year begins).
		Within the Jesuit order, Clavius was almost single-handedly responsible for the adoption of a rigorous mathematics curriculum in an age where mathematics was often ridiculed by philosophers and theologians.
		He was treated with great respect by Galileo, who visited him in 1611 and discussed the new observations being made with the telescope; Clavius had by that time accepted the new discoveries as genuine, though he retained doubts about the reality of the mountains on the Moon.
	www.proxydrop.info /index.php?q=aHR0cDovL2VuLndpa2lwZWRpYS5vcmcvd2lraS9DaHJpc3RvcGhlcl9DbGF2aXVz (458 words)

	Clavius
		Clavius porte sur ses murs criblés d’impacts plusieurs cratères.
		Clavius est l'une des formations les plus anciennes de la surface lunaire et a été probablement formé pendant la période du Nectarien il y a environ 4 milliards d'années.
		is one of the largest crater formations on the Moon, and it is the third largest crater on the visible near side.
	www.astrosurf.com /grenier/crateres/pages/clavius.htm (820 words)

	OAS Gallery - Clavius Crater - The Moon (Site not responding. Last check: 2007-10-13)
		In the centre of the image is the crater Clavius.
		This large crater sports a whole retinue of smaller craters within itself - indeed the well defined impact crater resting on the right hand side of Clavius is Rutherford.
		Clavius is 225 kilometres in diameter and named after the German mathematician and astronomer, described as the Euclid of the sixteenth century.
	www.chocky.demon.co.uk /oas/gallery/gal006.html (161 words)

	Lunar Images III (Site not responding. Last check: 2007-10-13)
		In the center left the crater Albategnius (136k) is shown the crater Klien (44k) overlays the lower left area.
		Craters 3k and smaller are evident in a number areas.
		Clavius crater is center with Tycho displaying its large central peak (over 2km high) in the upper left of the image.
	www.astroimaging.com /Lunarsmall3.htm (770 words)

	Lake County Astronomical Society NightTimes (Site not responding. Last check: 2007-10-13)
		This effect is accentuated by the high latitude of Clavius near the southern limb.
		The largest are Clavius B and Rutherford on the northeast and southeast walls, respectively; each is about 30 miles in diameter.
		The largest is Clavius D at 19 miles; the others have diameters of 14, 10, and 9 miles.
	www.bpccs.com /lcas/Articles/moonclav.htm (417 words)

	Clavius (Site not responding. Last check: 2007-10-13)
		Clavius is a very large crater in the southern highlands of the moon.
		At this time the crater is very distinctive and the numerous craters on its floor stand out well.
		Nearer to full moon however, Clavius can be very difficult to identify due to the bright rays from the crater Tycho which is just to the north.
	www.montgomerycollege.edu /faculty/~mclark/public_html/clavius.htm (110 words)

	3towers Observatory Lunar 1000 (Site not responding. Last check: 2007-10-13)
		Kant is the crater with the central peak at the bottom of the image.
		Clavius is the large heavily shadowed crater near the bottom of the image.
		West of it is the complex crater Stofler with Faraday overlying its Southwest rim.
	www.3towers.com /3towersObservatoryLunar100.htm (1149 words)

	Flickr: Photos from George Tarsoudis
		Crater Gassendi at 03 Oct. 2006, 20:48:06 UT Processing in Registax 265 frames from 959 frames.
		Crater Copernicus with 84,4% illumination at 03 Oct. 2006.
		Craters Hainzel and Mee and 1/2 of Schiller, 03 Oct. 2006
	www.flickr.com /photos/80161946@N00/?saved=1 (257 words)

	Fantastic areas on the Moon
		Clavius ranks among the largest lunar craters and according to Dr. Patrick Moore, in his book, A Survey of the Moon (1963) p.
		Clavius is a crater that is 135 miles or 225 km in diameter and the walls of this mighty crater rises to a height of over 12,000 miles or approximately 19,311 km above the crater floor.
		Crater JA is the smallest of the group.
	www.cfas.org /Library/fantastic_moon1.htm (1841 words)

	Clear Skies On Demand - an astronomy blog
		Clavius itself is a large crater (or is it a basin?) with a diameter of 225 km.
		On the crater’s circular rim I saw 4 smaller craters superimposed, Rutherfurd and Porter on the east, and Clavius K and L on the opposite side.
		There were numerous small craters visible, and some parts of the rim looked like they were more or less slumped and degraded.
	www.backyard-astro.com /blog/index.php/weblog/beautiful_clavius (447 words)

	Clavius - Solar Worlds
		Clavius is a prominent feature on the southern limb of the moon.
		The crater at the top of the image is Rutherford (30 mi) with an off-centre mountain peak.
		An arc-shaped series of craterlets named Clavius D, C, N, J and JA extends across Clavius's floor which is also covered in numerous tiny craterlets.
	www.solarworlds.co.uk /moon_clavius.htm (102 words)

	Mark's Astrophotography - Moon - Zone 5
		The Copernicus H crater itself is not resolved although the sunlight reflecting off the crater wall does show as a brighter point in the dark halo.
		The halo is probably formed when the meteor that creates the crater excavates darker material just under the surface which then rains down around the new crater forming the halo.
		Schiller (L30) is the unusual, oblong crater to the west-southwest.
	home.kc.rr.com /marksastropix/moon/zone5.html (486 words)

	Crater Clavius
		Clavius is No. 9 in the Lunar 100 list.
		The Crater Clavius is located in the rough southern part of the moon, it features a chain of smaller Craters on its floor.
		The crater Porter is superimposed on its edge.
	www.salzgeber.at /astro/moon/clavius.html (273 words)

	Clavius
		At about age twelve I was given a 60mm reflector on a ball and socket mount on a rickety tripod, and I loved to look at the moon and planets.
		Clavius has always been one of my favorite craters on the moon, even before the monolith was discovered in the movie 2001 A Space Odyssey.
		This humble image was taken through a 12.5 inch f/6 Newtonian reflecting telescope on a Dobsonian mount by afocal projection through an 11mm Nagler Type 4 eyepiece into a 50mm f/1.4 lens (stopped down to f/2.8) and a Nikon D1H digital camera.
	www.astropix.com /HTML/G_MOON/CLAVIUS.HTM (653 words)

	Clavius and Rupes Recta
		The telescope used to capture these images is a Meade 8" LX200 GPS that is permanently mounted in the Upton Farm Observatory.
		The images were captured with BTV Pro and stacked and combined with Keith’s Image Stacker (Clavius) and Lynkeos (Rupes Recta), running under Mac OS X (BSD Unix) on a PowerBook and other Macs.
		The Clavius image is reduced from a stack of four still ToUCam images, while the Rupes Recta image is reduced from an uncounted number of frames of a QuickTime video.
	www.davidillig.com /ast-clavius-rupesrecta.shtml (208 words)

	The Surface of the Moon (Site not responding. Last check: 2007-10-13)
		For example, if you have two large craters, and the first crater has 10 smaller craters in it, while the second one has only 2 craters in it, we know that the first crater is older since it has been there long enough to have been hit 10 times.
		Crater counting can tell us which features on the Moon are older than other features, but it can not tell us the absolute age of the feature.
		Clavius is one of the largest craters on the Moon, with a diameter of 225 km.
	astronomy.nmsu.edu /astro/a110labs/labmanual/node2.html (3622 words)

	Clavius biography
		In fact, except for a period in Naples around 1596 and a visit to Spain in 1597, Clavius was to remain Professor of Mathematics at the Collegio Romano for the rest of his life.
		Clavius proposed that Wednesday, Oct. 4, 1582 (Julian) should be followed by Thursday, Oct. 15, 1582 (Gregorian).
		Clavius was a gifted teacher and writer of textbooks.
	www-groups.dcs.st-and.ac.uk /~history/Biographies/Clavius.html (392 words)

	ciel profond (Site not responding. Last check: 2007-10-13)
		The area of the Plato crater, appenins, the area of the Archimede crater.
		The area of the Copernic crater, the crater Reinhold, Cognitum Mare, and the area of the Bullialdus crater.
		The area of the Maurolycus crater, area of the Arzachel crater, the grooves Rima Hyginus and Rima Ariadaeus, the Apennins, the area of the craters Eudoxe, Aristote and Plato.
	www.astrosurf.com /grenier/english/mosa2.htm (212 words)

	JeffPo's Lunar Page (Site not responding. Last check: 2007-10-13)
		I zoom in on a crater, examine it's floor and central peak.
		Notice the central peaks and the shadow of the crater rim lying on the crater floor.
		The rims of the crater have the early morning light, while the floor of the crater hangs onto the darkness of night.
	www.mindspring.com /~jeffpo/lunar.htm (900 words)

	Clavius: Vehicles - the blast crater
		The lunar module's descent engine should have dug a huge crater in the lunar surface.
		We could simply ask, "Why do you expect a crater?" and probably be done with it.
		This is because popular intuition dictates that a rocket engine of any size is automatically more powerful than a jet engine of any size.
	www.clavius.org /techcrater.html (1784 words)

	High Resolution Lunar & Planetary Images From Singapore by Tan Wei Leong (Site not responding. Last check: 2007-10-13)
		Crater Dopplemayer on the lower right and Crater Puiseux on the lower bottom.
		The smaller crater to the upper right of the image is gassendi - imaged on 25th March 2002 through the Celestron C11 at F/22 with Philips ToUcam Pro.
		Further left into the smooth are half bright distinct crater is Pytheas and slightlt larger crater left of Pytheas is Lambert.
	www.sg-planets.org /lunar.html (567 words)

	NexStar 50 Lunar Club Observation Log - Terrance Hannan
		There is a large prominent crater on the N side of Cassini’s floor, and a smaller crater at the SW end of Cassini’s floor.
		Curved chain of craters descending in size and suggesting a spiral is a sight to behold.
		Thebit and crater on its margin and the crater pit on its margin were visible.
	www.nexstarsite.com /NS50ClubLogs/TerranceHannanLunar.htm (3518 words)

	Peter Lloyd's Lunar Pages
		Clavius B, in Hatfield's atlas, is labelled Porter in the VMA.
		Clavius is a very shallow crater, only about 5 Km deep compared to its 231 Km diameter.
		This can be seen by looking at the shadow of the eastern wall and comparing that with the shadows in Porter and, for example, Clavius D. Clavius is an old crater (3,800 million years) and it may just be that it has been largely filled by material thrown out by the formation of later craters.
	homepage.ntlworld.com /peter.lloyd3/Moon/Craters/Clavius.html (308 words)

	Lunar Images with Maksutov-Cassegrain
		Crater Cassini at center with the lone summit of Piton brilliantly lit by the rising sun.
		Crater pits caused by the creation of Copernicus, out of image at upper right, can be seen to right.
		Craters Watt, Steinheil and Janssen, upper right, along with the Rheita Valley are clearly visible along the morning terminator.
	www.fortunecity.com /victorian/canterbury/222/maksutov.htm (522 words)

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