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Topic: Catharina (crater)

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	Mark's Astrophotography - Moon - Zone 3
		Catharina at the top, Cyrillus with arrow pointing at it and Theophilus near the center (L8) are the three prominant craters in the upper half of the image.
		This indicates that Catharina is a relatively young crater, Cyrillus is middle-aged and Theophilus is an older crater.
		The distinct crater in the highlands on the edge to the southwest is Menelaus, number 27 on the NexStar 50 Lunar List which states that "at full Moon one of the brightest points".
	home.kc.rr.com /marksastropix/moon/zone3.html (1062 words)

	Astro Images
		Mare Frigoris, Mare Imbrium, craters Plato, Aristoteles, Eudoxus, and Casinni on 7/21/00
		Mare Serenitatis, Montes Haemus, Serpentine Ridge, craters Posidonius and Plinius on 11/15/00
		Craters Theophilus, Cyrillus, and Catharina in waning gibbous phase on 11/15/00
	www.nwgis.com /greg/astimage.htm (1167 words)

	Pagan Astronomy Network - Lunar Crater Project
		Craters are the oldest common features found throughout the solar system [16], and in fact, the largest known crater in the system is known to be on the moon.
		Craters on or partially in the terminator were not selected for observation, as the shadows near the terminator can change rapidly and appear deeper then they actually are.
		Measuring the true depth of craters is increasingly difficult as one must make a determination between the measurement from the lunar surface to basin of the crater rather then the from the height of the crater rim.
	paganastronomy.net /lunarcrater.html (2668 words)

	The Moon
		The highlands are composed of a heavily cratered crust composed largely of anorthosite.
		The general Lunar crater morphology is directly related to the size of the crater.
		The central peaks of large impact craters such as Copernicus may be composed of rocks that have been uplifted from deep in the crust.
	www.unm.edu /~abqtom/observing_the_moon.htm (2377 words)

	ROBINSON LUNAR OBSERVATORY (Site not responding. Last check: 2007-10-19)
		When first detected the ray spanned approximately 75% of the width of Catharina, shrinking to approximately 50% by the end of the observation.
		Catharina - +378,-310: A great but somewhat irregular walled-plain, about 55 miles in diameter, with broad walls torn by explosions and much deformed by depressions (the largest of which lies on the inner north-west slope, but still attaining 16,000 feet in places.
		The crest of the wall on the south-east and south is disturbed by small craters; on the outer slopes, among numerous craters, is the ring C connected to Polybius by a ridge and to Catharina by a valley.
	www.lunar-occultations.com /rlo/rays/catharina.htm (235 words)

	Lake County Astronomical Society NightTimes
		Catharina is the largest of the three craters and appears severely battered.
		Catharina has been nearly obliterated by several impacts, the largest Catharina P, appears as a ghost ravaged by time.
		Within the far southern wall Catharina S appears to be one of the younger impacts due to its well-defined rim.
	www.bpccs.com /lcas/Articles/moon5day2.htm (559 words)

	Moon Phases New, Full, Waxing, Waning (Site not responding. Last check: 2007-10-19)
		Some craters are starting to come into view as the terminator moves across the face of the moon.
		Northwest of the crater Tycho is the Marsh of Diseases!
		Craters are formed by meteoric impacts and the rays are formed by the debris blasted out of the crater by the impact.
	www.unexplainable.net /artman/publish/printer_2537.shtml (1965 words)

	Lesson 8 - The Lunar Landscape
		Some of the largest craters, which were probably formed long ago, when the Moon was still being bombarded by very big objects, have experienced lava flows within the crater.
		Overlapping craters provide a series of time points in which we can deduce that the most recent crater is the one with the complete rim.
		Walter and Ptolemaeus are dark floored, walled plains craters at each end of a chain of craters that form a prominent group to the east of Nubium.
	www.synapses.co.uk /astro/moon3.html (3719 words)

	The Full Moon Atlas
		The southern sweep of Mare Nectaris (along the top center edge of the photograph), with the partially-filled Crater Fracastorius visible along its lower rim.
		Crater Catharina, overlapped by Catharina P, lies west of Nectaris (upper left corner of the photo), while Crater Piccolomini, with a distinctive mountain massif at its center, is visible just above middle along the lower edge.
		When displayed, approximate crater diameters (in kilometers) are shown within parenthesis.
	www.lunarrepublic.com /atlas/sections/f5.shtml (152 words)

	Moon shot 2 (Site not responding. Last check: 2007-10-19)
		The lower one is Catharina, a "damaged" ring mountain 100 km in diameter and 3130 meters deep.
		The indentation at the bottom of the Mare is the crater Fracastorius which is missing its north wall with the floor continuing into the Mare.
		Near the center bottom of the photo is a group of craters including (from lower to upper) Hageclus, Nearch, Rosenberger, Vlacq, Hommel (the largest one with a small white illuminated hill in the middle), and Pittcus.
	www.bicomnet.com /ritchieobs/pages/moon5983.htm (233 words)

	3towers Observatory Lunar 1000 (Site not responding. Last check: 2007-10-19)
		Mare Nectaris is in the center of the image, and Fracastorius is the crater on the Southern edge of Mare Nectaris.
		Kant is the crater with the central peak at 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)

	NexStar 50 Lunar Club Observation Log - Douglas E. Johnson
		Date Observed: 9/14/05 10:02 PM Comments: Small, circular crater just west of the Riphaeus Mountains on the eastern edge of Ocean Procellarum directly east of crater Hansteen with the intervening mare between the two devoid of features, approximately mid-way between craters Kepler and Gassendi.
		While it is nice to speculate that 5 monks may have described its origin from a meteorite in 1178, the current evidence suggests what they saw was most likely due to their witnessing a meter (Beta Taurid meteor) burning up in a trajectory that was limited to their field of view.
		Date Observed: 8/10/05 9:30 PM Comments: Large, well-defined crater- the 1st of a chain of three (Theophilus, Cyrillis, Catharina) lying at the western junction of Mare Nectaris and Sinus Asperitatis- with prominent terraced walls, smooth floor and prominent central peaks.
	www.nexstarsite.com /NS50ClubLogs/JohnsonDouglasLunar.htm (1690 words)

	Volcanic Crater
		crater, a basin of a roughly circular form within which occurs a...
		crater, the breathtaking caldera, as red skies set the water ablaze with colour,...
		crater of an ancient volcano, situated near the Grotto del Cane (5).
	www.cordah.co.uk /volcanic_crater.html (330 words)

	[No title]
		Catharina – The oldest in the set is a 100km diameter impact crater with heavily degraded walls (virtually no terracing left) and many craterlets across the floor.
		Aristoteles – An 87km crater with 3700m terraced walls and landslips to on the southern wall.
		This crater is named after Aristote a 4th century BC Greek philosopher who was a tutor to Alexander the Great.
	www.iceinspace.com.au /index.php?id=69,258,1,0,1,0 (2348 words)

	Noeleen Lowndes Page
		The large crater to the south in the photo is Crater Cleomedes a very prominent crater (126 km) in diameter.
		Above Crater Catharina is a 480 km range called Altai Rupes with another crater at the end called Piccolomini.
		The large crater on the terminator line is the magnificent Crater Copernicus a ringed mountain 93 km in diameter and 3760 m deep.
	www.sas.org.au /noleen/noleen.htm (2307 words)

	LPOD lunar photo of the day » 2006 » August
		These are pools of impact melt that must have been emplaced at the end of the cratering phase for they aren’t pitted by ejecta.
		And Catharina has been so heavily cratered that its rim barely rises above the surrounding terrain and it central peaks are missing.
		South of Catharina are fragments of two inner rings of the Nectaris Basin, and between them smooth non-mare material of uncertain origin.
	www.lpod.org /?m=20060830 (310 words)

	Album: Moon
		The three craters are lit by an approaching third-quarter moon.
		The view actually got much more interesting after I completed the sketch, as the lunar sunrise hit the floor of the crater, illuminating the floor and creating dark shadows from the central peak (pictured here) to the W side of the crater.
		Crater near the western shore of Mare Humorum.
	www.jotabout.com /portuesi/astro/sketches/Moon (402 words)

	Peter Lloyd's Astronomy Pages
		Catharina is a very battered crater with its walls pot-marked with smaller craters.
		The picture here was taken shortly before sunset on that part of the Moon, so the steep walls cast dark shadows and the full structure of the crater does not show up well.
		The picture was taken with a ToUcam attached to my LX200 with a X2 adaptor lens on 16th September 2003 at 0326 UT, when the Moon was 19.7 days old.
	homepage.ntlworld.com /peter.lloyd3/Moon/Craters/Catharina030916.html (76 words)

	Forward to the Past (Site not responding. Last check: 2007-10-19)
		Where he was at this time, the first Luna outpost or FLO 1 was in a small crater on the edge of the massive crater Tyco, measuring fully 50 miles in diameter, here would be built the military garrison that was to be called Tycho City.
		Once outside he slowly trundled toward the two hoppers that stood on the far side of the small crater they were in, on the other side of the rim of this crater was the edge of the massive Tycho crater itself.
		It was held on to the main body of the hopper by two brackets, wich held it on either side; these were hinged so as to allow the sphere to rotate through ninety degrees, so that it would always face forward.
	www.angelfire.com /scifi2/spectrum_hq/forward_to_the_past.htm (8494 words)

	SPACE.com -- Skywatcher's Guide to the Moon
		Along the terminator, which is the dividing line between the lit and unlit regions of the Moon, many craters stand out in sharp light and shadow.
		Most of the Moon's southern hemisphere is rugged and pockmarked with craters, including the bright ray crater Tycho.
		Its rim and floor are pitted with a variety of craters.
	www.space.com /spacewatch/moon_guide-3.html (1003 words)

	The Moon
		To its upper left is Sinus Iridum, or the Bay of Rainbows, with two small craters guarding the entrance of the bay, Helicon and Le Verrier.
		East of the crater Copernicus towards the center of the moon is Rille Hyginus (Hyginus Cleft), shown here in the center of the picture as a dark spirally feature.
		Theophilus is a beautiful crater to look at because of its mountain rdiges in the center.
	www.kalemis.com /moon.htm (634 words)

	LPOD lunar photo of the day » 2006 » August
		I will be sorry at the end of 2008 when the European, Japanese, Chinese, Indian and US lunar orbiters will have finished their missions and presumably the entire surface of the Moon will have been imaged at high resolution and everything larger than a few hundred meters will have been discovered.
		The crater chain crisply crossing Catharina P is one I never knew of, but a quick check of the Lunar Orbiter IV image reveals that that hundred million dollar spacecraft also captured it, but less well.
		Back to the crater chain - it points exactly toward the center of Theophilus, and must be secondaries from the impact that formed that large crater.
	www.lpod.org /?m=20060817 (328 words)

	Tacitus (crater) - Wikipedia, the free encyclopedia
		The outer walls has a small rampart, and the interior surfaces are terraced.
		The rim outline has a slight polygonal outline.
		See the reference table for the general listing of literature and web sites that were used in the compilation of this page.
	en.wikipedia.org /wiki/Tacitus_(crater) (207 words)

	The Moon (Site not responding. Last check: 2007-10-19)
		Pretty steep slopes marked by craters with Walter to the East Lexell to the South Ball to the South-West and Hell to the East.
		Very large flat floor with internal craters whose Gauss E and a small central mountain.
		Tormented and steep slopes overhanging Sinus Asperitatis from 1200m and supporting Cyrillus to the South-East Theophilus F to the West and Mädler to the East.
	home.hetnet.nl /~r.kantelberg/Gallery/Solarsystem/Moon/Moon.html (1084 words)

	Clear Skies On Demand - an astronomy blog
		North of Somniorum lies Lacus Mortis with the crater Burg at its centre.
		In the South, the trio Theophilus, Cyrillus and Catharina were beautifully lit, together with Rupes Altai.
		The craters that are visible near the southern limb will be discussed in one of the next weblog entries.
	www.backyard-astro.com /blog/index.php/id=34_0_1_0_C/P72 (973 words)

	Record of Lunar Observation (Site not responding. Last check: 2007-10-19)
		The clean outline of the relatively recent Theophilus with its high rim and multiple central peaks, contrasts with the heavily eroded and battered surfaces of Cyrillus (older) and Catharina (oldest).
		Along the edge of the Rupes Altai escarpment, to the right of crater Theophilus, is a distinctive button-like peak.
		The crater itself is approximately 100 km across with a rim rising to over 1km higher than the surrounding area in places.
	users.eggconnect.net /iknight/ob13.htm (243 words)

	Vaughn's Homepages - THE ASTRONOMY PAGE FOR 2004.
		This drawing shows a broken chain of 3 craters that is meant to illustrate the principle of stratigraphic dating.
		The crater Yerkes was not visible, but there did appear to be a curving cliff that joined up to an isolated peak.
		I think that maybe the Island is a landslide that has broken from the crater wall and settled.
	homepages.ihug.co.nz /~Svmalkin/astronomy/lunar100.htm (1902 words)

	Moon Observations
		Observed this in conjunction with C. Cyrillus and C. Catharina.
		I could also see Crater Herschel, which was north of this crater, and helped me to find Crater Ptolemaeus.
		This was visible with some effort and in addition to Crater Ptolemaeus, I also was able to see Crater Herschel and Crater Arzachel.
	www.his.com /~pct/astronomy/lunar_log.html (1015 words)

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