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Topic: Antoniadi (Lunar crater)


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 Impact craters
This is the excavation stage when the material excavated from the crater is distributed radially as a blanket of fragmented debris or "ejecta".
Craters are a most useful tool to establish the relative ages of surfaces and thus to better understand how a planet has evolved, for example, to learn what have been the rates of erosion and sedimentation.
The martian chronology is a relative chronology by comparison to the lunar one which is absolute and was calibrated by datation established on the lunar samples brought back by the Apollo missions.
cmex.ihmc.us /CMEX/data/SiteCat/sitecat2/crater.htm   (1048 words)

  
 Antoniadi Lunar Crater | Ramon Crater   (Site not responding. Last check: 2007-10-20)
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dspp.info /antoniadi-lunar-crater.htm   (460 words)

  
 CHAPTER 5: PLANETARY GEOLOGY: Manual of Remote Sensing
The heavily cratered regions occur mostly in the southern hemisphere, and are separated from smoother and possibly topographically-lower northern plains regions by a global-scale boundary scarp.
The bright crater Kuiper near the center of the image (60 km diameter) is one of the largest young craters on Mercury and defines the Kuiperian stratigraphic unit, analogous to the Copernican unit on the Moon.
The craters at the heads of the islands are 8 km (upper) and 10 km (lower) diameter, and represent the compacted obstacles that caused the water to be diverted.
marswatch.tn.cornell.edu /rsm.html   (18132 words)

  
 LowellCanals
If the background crater was too large or the aperture of the telescope was too large, then the dust had nothing for orientation supplied by the observer, to "direct" it, to "frame" it, as it were.
If all the necessary craters could be classed in the nearly same size range, then a double, the secondary, would parallel the original, the primary, canal for the duration of the course of the primary.
Again, if one crater at the start of a canal and one at the finish were large enough in the presence of increased dust, a double could be realized.
www.thespaceguy.com /lowellcanals.htm   (3439 words)

  
 Riemann Crater | Bok Lunar Crater   (Site not responding. Last check: 2007-10-20)
Endless research by us was done to find information on poka mon crater and guide you to the very best web sites to visit.
Deciding which are the best crater and barrel domains isn't all that easy.
With the continued growth of electronic commerce ww pokemon crater com enterprises grow with electronic commerce innovations A great advantage that Internet commerce offers to wunda crater dealers will always have over their store-front competitors crater democritus businesses is the operational savings that come from Internet sales.
dspp.info /riemann-crater.htm   (327 words)

  
 nayati voice   (Site not responding. Last check: 2007-10-20)
Baldet (Lunar crater) 55 km Fernand Baldet not Francois >
Kamerlingh Onnes (crater) 66 km Heike Kamerlingh Onnes
Tikhov (Lunar crater) 83 km Gavrill A. Tikhov
nayati4bap.blogspot.com   (7203 words)

  
 Mars Exploration Rover Mission:
Craters less than 100 kilometers (62 miles) in diameter are named after towns on Earth with fewer than 100,000 people.
New Plymouth Crater was formally accepted as the official name of a small crater coincidentally near Gusev Crater where Spirit landed.
That crater was named "Eagle Crater" after the Apollo 11 lunar module that carried Neil Armstrong and Buzz Aldrin to the surface of the moon for the first human lunar landing on July 20, 1969.
marsrovers.jpl.nasa.gov /spotlight/spirit/a24_20040602.html   (2075 words)

  
 A Clementine Collection   (Site not responding. Last check: 2007-10-20)
Clementine has revealed what appears to be a major depression near the lunar south pole (center), evident from the presence of extensive shadows around the pole.
The center of Schrodinger is flooded by lavas; these lavas are older than the crater Antoniadi (69S, 172W; 135 km diameter, at mosaic outer edge near the 6:30 position), as shown by the scoring of the lava surface by Antoniadi secondary craters.
Finally, a volcanic vent seen in the floor of Schrodinger is one of the largest single explosive volcanoes on the Moon; its dark ash deposit overlies the secondary craters of Antoniadi, thus indicating that it is significantly younger than lavas filling the basin.
www.cmf.nrl.navy.mil /clementine/clem_collect/lsthpol.html   (303 words)

  
 ST80 Notes: Plato, Bullialdus, Rima Birt   (Site not responding. Last check: 2007-10-20)
This small crater was clearly seen at powers from 133x to 190x for a few mintues, then as the angle of light grew higher it completely disappeared, not to be detected again despite repeated attempts.
Later in the session when sunlight first touched them, the pair of craters just north of the center of Plato's floor was intermittently visible as a brighter aberration on the otherwise smooth dark plain, but never quite appeared craterlike nor resolved into two distinct objects.
The flooded crater Kies was an attractive sight under the low lighting, and the large dome to its southwest quite easily seen in the ST80, though I could only detect a hint of the crater pit reported to occupy its summit.
observers.org /reports/2000.03.14.html   (794 words)

  
 UAI lunar section - torricelli program
The crater Torricelli is positioned at 4.6° of latitude S and 28.5° of longitude E. Its maximum dimension is of 23 Km and has a elongated shape, probably caused by a partial overlapping of 2 different crater rims that, maybe due to tectonic activity following the impacts, have merged to form a single structure.
The main crater, Torricelli, is interesting for another reason: some amateur observations seem to document a probable landslide of the crater walls, in the last 20 years.
We encourage all lunar observers to monitor Torricelli B visually and with ccd imaging, using filters (blink technique: red and blue filters alternated rapidly for color effects identification) and estimating its albedo compared to the surrounding terrain, during the lunations.
luna.uai.it /torricelli_eng.htm   (1483 words)

  
 Schrodinger   (Site not responding. Last check: 2007-10-20)
Near the middle of the floor are small dark halo craters whose dark spotches are visible here.
The two large radial features are the most conspicuous such basin crater chains on the Moon.
Note the transitional crater/basin Antoniadi to the right and the older impact basin Planck.
www.space.edu /moon/atlas/Farside/Schrodinger.html   (86 words)

  
 Imaging the lunar surface
Images of Sirsalis crater have been recorded on January, 30, 1999 at 1.00- 1.20 UT. The captured CCD images are examined and processed with computer software to achieve increased resolution for TLP study and for comparison with Lunar Orbiter images of the moon.
The cause of these changes is as yet unknown but may include Tidal stress induced on the Moon by the Earth, the moons passage trough the Earths magnetic tail, meteor strikes and gas release.
On the right of Sirsalis there are the small craters F and J. On the left the presence of craters B and C is evident (see Rukl chart 39).
digilander.libero.it /gibbidomine/tlp.htm   (1108 words)

  
 Imaging the lunar surface
Ptolemaeus is 164 km in diameter and is centered at 9.3 S, 1.9 W. The interior of the crater is covered by the Cayley formation, a light-colored unit characterized by the gentle ridges and depressions, and numerous small craters.
The feature was a bright walls of a small crater which is superimposed on a portion of the ejecta blanket of Herschel crater, located to the north and east of Ptolomaeus.
The floor of the degraded crater Ptolomaeus is indeed subdued, and in its northern portion it has a deposit of brighter, hummocky material with numerous small bright craters---this deposit and these craters are almost certainly from the younger Herschel crater.
digilander.libero.it /gibbidomine/tolo.htm   (1523 words)

  
 [No title]
Subsequent bombardment of the lunar surface has disrupted the original flotation crust, and most of the remnants have been obscured by more mafic deposits, but the distribution of the outcrops of pure anorthosite that have been identified holds important implications for the evolution of the lunar crust.
It is generally accepted that immiscibility was involved in the genesis of lunar granites in the near-surface environment; it has not been established whether immiscibility is stable at the base of the lunar crust (3 kbar).
Lunar sample 78526 (8.77 g), our largest specimen of VLT basaltic composition, is an impact melt composed of vitrophyric green glass with minor lithic and mineral inclusions.
www.lpi.usra.edu /meetings/programs/lpsc96wa.txt   (13619 words)

  
 Lunar Republic : Craters A
Eugène Michael ~ (1870-1944), French astronomer, born in Greece; a leading and decisive critic of the canal hypothesis of Mars, in his magnum opus, La planète Mars (1930), he presented a state-of-the-art summary of Martian topography and helped set the scene for the modern investigation of the planet.
Antoniadi Ridge on Mercury, as well as this Lunar crater and another on Mars, were named in his honor.
Lunar Republic, S.A. Contents copyright © 1999-2006 by the Lunar Republic Society.
www.lunarrepublic.com /gazetteer/crater_a.shtml   (4439 words)

  
 Can We See Martian Craters From Earth
Also, the population of craters in that particular quadrant of Mars (Xanthe-Tharsis-Amazonis and Tempe-Arcadia regions) is lower than most other regions of the planet and the larger craters there only average about 60-km (1.5 degrees or less) in diameter.
Since Martian craters are similar to those found on other celestial bodies and follow similar depth/diameter ratios, crater depths in those regions run from 1 to 3 kilometers [Strom, et al, 1992].
To identify a Martian crater wall of 1- or 2-km height from Earth would require a telescope with a plate scale of 0.004 - 0.007 arcsec, or an aperture between 16.5 to 33 meters (650 to 1,300 inches).
www.lpl.arizona.edu /~rhill/alpo/marstuff/articles/MARTIAN.HTM   (2960 words)

  
 TLP in Sirsalis Crater?
Images of Sirsalis crater was recorded on January, 30, 1999 at 1.00- 1.20 UT by Sorrentino Giuseppe (Italy).
In date july 5, 1999 the UAI Lunar Section reported a short note on the same phenomenon.
The UAI Lunar section pointed out that the phenomenon is due to a combination of instrumental noise and seeing.
www.glrgroup.org /tlp/1.htm   (761 words)

  
 Observing log for BAA/ALPO members for April 2003   (Site not responding. Last check: 2007-10-20)
The interior of the crater was a featureless stygian fl with the exception of a brilliant (intensity 9) thread of light that ran parallel  to the illuminated east wall.
Attached is an image of the lunar crater Theophilus taken this morning with my recently acquired Orion Optics 250mm f/6.3 SPX Newtonian.
Attached is an image of the lunar crater Posidonius taken this morning with the Orion Optics 250mm f/6.3 SPX Newtonian.
www.cs.nott.ac.uk /~acc/Lunar/2004sep.htm   (6117 words)

  
 APOD Search Results for "mars"   (Site not responding. Last check: 2007-10-20)
It is hoped that Victoria Crater will show a deep stack of layers uncovered by the initial impact, and hence new clues into the ancient surface history of Mars.
Beagle crater appears in the center as a dip exposing relatively dark sand.
Visible in Gusev Crater are rocks, rusting sand, a Martian sundial, vast plains, nearby peaks, faraway peaks, and sand drifts.
antwrp.gsfc.nasa.gov /cgi-bin/apod/apod_search?mars   (10574 words)

  
 Visual Observations - Page 3
A number of craters were visible on both sides of Mare Crisium, including to the north, Cleomedes, Burckhart, Geminus, and Messala, and to the south, Langrenus, Vendelinus, Petavius, and Furnerius.
Grimaldi is a walled basin with a large flat floor that was filled with lava, and it is one of the oldest lunar features with an estimated age of over 4 billion years.
Cavalerius is a prominent crater to the north west of Hevelius.
members.leapmail.net /~ericj/recent_obs3.html   (5020 words)

  
 ARCHIMED   (Site not responding. Last check: 2007-10-20)
Lunar crater Archimedes acquired in integral light with an Electrim EDC1000-TE CCD camera (192 x 165 pixels, 8 bit A/D converter).
The telescope used was the apochromatic refractor of the
The estimated seeing was 2.0 Antoniadi scale and the acquisition time was 8/100 second.
www.chim1.unifi.it /group/education/caat/sgpg/archi_e.htm   (57 words)

  
 LPOD lunar photo of the day » 2006 » September
One hundred and fourteen kilometers in diameter, filled with rilles and a rich variety of terrain, Nectarian era Gassendi sits on the northwestern shores of Mare Humorum in the South West Quadrant of the Moon.
As the magma fills these volumes, it pushes up on the material on the crater floor causing these characteristic fractures in the surface and in the process providing a vent for lavas.
I could sense that there was a level of detail hidden by the seeing, a larger population of smaller rilles awaiting that moment of perfect clarity to reveal themselves.
www.lpod.org /?m=20060912   (422 words)

  
 Clementine Image Collection   (Site not responding. Last check: 2007-10-20)
Clementine has revealed what appears to be a major depression near the lunar south pole (center), evident from the presence of extensive shadows.
The center of Schrodinger is flooded by lavas; these lavas are older than the crater Antoniadi (at mosaic outer edge near the 6:30 position), as shown by the scoring of the lava surface by Antoniadi secondary craters.
This image is a part of the Image Library sponsored by The Center for Space Research - University of Texas at Austin and Texas Space Grant Consortium.
www.tsgc.utexas.edu /images/spacecraft/clementine/south.html   (318 words)

  
 [No title]
To ascertain if other structures could be ascribed to lunar domes morphology the Geologic Lunar Research group (GLR) set out to coordinate its team of observers for the target date of january 18, 2002 and march 21, 2002.
This report also demonstrates that lunar domes are difficult features for the lunar observer.
It could be a definite indication that, at some time in its geologic history, the crater Ptolemaeus was an area where the intruding lavas found release to the surface.
web.tiscali.it /themoon/tolomeo567.htm   (613 words)

  
 VENUS ARTICLE   (Site not responding. Last check: 2007-10-20)
From this he could estimate the heights of lunar mountains and the general topography of the lunar terrain.
Schröter’s first discoveries were of the lunar features known as ‘clefts’ - to the eye seemingly long cracks in the lunar surface.
Schröter’s efforts were later honoured by the IAU with the naming of the crater “Schröter”, on the edge of Mare Imbrium (Sea of Rains).
homepage.mac.com /andjames/PageVenus004x.htm   (6754 words)

  
 The Ghost and Mrs. Moon - Article
A dead crater alright, Crater Torricelli is probably known to some because of the interesting shape of
Crater Torricelli R.  Although it may not be obvious with a quick look, under my 4-inch TV-102 Light
So is Crater Puiseux another "zombie crater"?  The rim is basically all intact at 146x and 176x.
www.cloudynights.com /item.php?item_id=1143   (1402 words)

  
 Glossary of Astronomical Terms
Antoniadi Scale- a roman numeral indicates the quality of seeing according to the following scale:
Crater- bowl-shaped depression formed by the impact of a meteoroid; depression around the orifice of a volcano
Lunar month- The average time between successive new or full moons, equal to 29 days 12 hours 44 minutes
home.case.edu /~sjr16/advanced/extras_glossary.html   (5495 words)

  
 Lunar Transient Phenomena Observing Form
Association of Lunar Planetary Observers & American Lunar Society
ANTONIADI SCALE: Seeing (Scale I to V with I being the best):
DAVID O. l.T.P. Send any attach images or additional information to my email address.
www.ltpresearch.org /MANUAL/chap10.html   (84 words)

  
 Principal Lunar Craters
Adapted from the Lunar Nomenclature Database published by the U.S. Geological Survey Flagstaff Field Center.
The following table lists all named lunar craters greater than 50 kilometres in diameter.
Click on the crater name to view the Moon centred on that crater.
www.fourmilab.ch /earthview/lunarform/cratallp.html   (1232 words)

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