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Topic: Bok (Lunar crater)


  
 Astronomical Research - Annual Report 2001 of The Vatican Observatory
Since the early 1970s our understanding of lunar formation has been dominated by the magma ocean model, that is, that the early Moon started with a layer 400 km thick of completely molten rock, whose stratified freezing gave rise to the different rock types seen in the samples returned by the Apollo mission.
But data from the recent lunar orbiters indicate that the average crustal composition of the Moon is significantly different from the composition of the limited Apollo samples on which the magma ocean hypothesis was based.
Lunar anorthosites may have formed over too long a period to be consistent with a rapidly chilled crust.
clavius.as.arizona.edu /vo/R1024/AReports/ARepI01.html   (5628 words)

  
 ch4
Much of the old, cratered terrain, particularly in the equatorial regions, is dissected by channels of some type, the most common of which is the simple gully, typically a few tens of kilometers long.
The channels are concentrated on crater rims and tend to be approximately parallel, a few tens of kilometers long, with few tributaries.
Flow was from the south and apparently diverged around obstacles such as craters and low hills to form a sharp prow upstream and an elongate tail downstream.
history.nasa.gov /SP-441/ch4.htm   (1348 words)

  
 Glossary
Crater diameters on the Moon range from centimeters to several hundred kilometers.
Most craters on bodies such as the Moon are formed by the impact of solid bodies, such as asteroids.
Rays are debris "splashed" out of the crater by the impact that formed it.
www.mhhe.com /physsci/astronomy/arny/student/olc/m3_glossary.html   (9380 words)

  
 Glossary   (Site not responding. Last check: 2007-10-12)
Crater: a generally circular hole in a planet or moon created by a meteorite impact.
Favorable opposition: the configuration of the sun, Earth, and superior planet where the elongation is 180 degrees and superior planet is in a relatively close proximity to the Earth.
Lunar eclipse: the casting of the Earth's shadow onto the full moon, thereby dimming the full moon.
wind.cc.whecn.edu /~marquard/BOCES/glossary.htm   (6689 words)

  
 Aaron Crater Tattoo | Bok Lunar Crater   (Site not responding. Last check: 2007-10-12)
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dspp.info /aaron-crater-tattoo.htm   (365 words)

  
 Weekly Notes
These opaque, dark knots of gas and dust are called "Bok globules," and they are absorbing light in the center of the nearby emission nebula and star-forming region, NGC 281.
Bok hypothesized that giant molecular clouds, on the order of hundreds of light-years in size, can become perturbed and form small pockets where the dust and gas are highly concentrated.
The Bok globules in NGC 281 are located very close to the center of the IC 1590 cluster.
www.telescopesa.za.org /weeklynotes.htm   (4908 words)

  
 Riemann Crater | Bok Lunar Crater   (Site not responding. Last check: 2007-10-12)
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dspp.info /riemann-crater.htm   (327 words)

  
 Moon - Everything on Moon (information, latest news, articles,...)
The terms lunar, selene/seleno-, and cynthion (from the Lunar deities Selene and Cynthia) refer to the Moon (aposelene, selenocentric, pericynthion, etc.).
The lunar outpost will be built at one of the moon's poles, where near constant sunlight makes solar power feasible, officials said.
From CNN: NASA's lunar architecture team decided it would be better to establish a base than to conduct individual missions to the moon, as in the Apollo program of the 1960s and 1970s, (NASA Deputy Administrator Shana Dale) said.
www.spiritus-temporis.com /moon   (601 words)

  
 The Apollo 8 Flight Journal - Day 4: Lunar Orbits 1, 2 and 3
The ray system also shows that the crater is relatively fresh, perhaps a few hundred million years old which is also born out by the crater's sharp outline as shown in the photographs.
The bright crater upper left is Hansky F at 9 kilometres diameter, and to its right is the reasonably distinct form of Hansky itself, a 43-km crater.
Their first LOI burn brought them into lunar orbit but was deliberately made slightly short so that any errors would not risk causing the spacecraft to impact the Moon.
www.hq.nasa.gov /pao/History/ap08fj/13day4_orbits123.htm   (16042 words)

  
 Arny/Explorations an Introduciton to Astronomy
Bok globule -- small, dark, interstellar cloud, often approximately spherical.
crater -- a circular pit, generally with a raised rim, and sometimes with a central peak.
lunar eclipse -- the passage of the Earth between the Sun and the Moon so that theEarth's shadow falls on the Moon.
www.mhhe.com /physsci/astronomy/arny/glossary.mhtml   (10227 words)

  
 [No title]
At the 36th Lunar and Planetary Science Conference in Houston this week (March 14-18), Carnegie Mellon scientist Alan Waggoner is presenting results of the life detection system's recent performance in Chile's Atacama Desert, where it found growing lichens and bacterial colonies.
Lunar dust is different: "It's almost like fragments of glass or coral--odd shapes that are very sharp and interlocking," says Metzger.
Lunar ice, on the other hand, is localized near the Moon's north and south poles deep inside craters where the Sun never shines, according to similar data from Lunar Prospector and Clementine, two spacecraft that mapped the Moon in the mid- 1990s.
www.lyon.edu /projects/marsbugs/2005/20050321.txt   (10938 words)

  
 My UFO Blog: Space Archives
Work is underway on new generation lunar projects, including a souped-up rover and a $38-million project to extract breathable oxygen from moon dust.
The lunar landscape in Texas was bulldozed and forgotten.
NASA's projected lunar budget of $104 billion is enough to send a crew to the moon and back — a feat the space agency figures will take place as early as 2018.
www.myufo.com /space   (9222 words)

  
 Amazon.ca: Shoemaker by Levy: The Man Who Made an Impact: Books: David H. Levy   (Site not responding. Last check: 2007-10-12)
Shoemaker-Levy 9 provided the final bit of evidence: mysterious strings of craters on our moon and elsewhere are now recognized as having been created by similar comets or asteroids that broke up before impact.
As an advisor to NASA and trainer of astronauts in basic geology, Shoemaker was in the thick of the moon missions, but, as Levy describes, was exhausted by his work on them and in the 1970s returned to the study of cosmic collisions.
The day after his death I heard of the idea to include some of his ashes on the Lunar Prospector satellite that was soon to launch, orbit, and eventually crash on the moon.
www.amazon.ca /Shoemaker-Levy-Who-Made-Impact/dp/0691002258   (1374 words)

  
 bok - OneLook Dictionary Search
BOK, bok : Stammtisch Beau Fleuve Acronyms [home, info]
BOK : Custom License Plate Terms [home, info]
Phrases that include bok: bok globule, derek curtis bok, edward william bok, adian bok, aidan bok, more...
www.onelook.com /?w=bok&ls=a   (166 words)

  
 Lunar Republic : Craters   (Site not responding. Last check: 2007-10-12)
The Lunar Republic™, The Full Moon Atlas™, The Lunar Consulate™, The Lunar Registry™ and the phrases
Lunar Republic, S.A. and the International Lunar Society.
We encourage you to read our privacy statement and terms of use.
www.lunarrepublic.com /gazetteer/crater_b.shtml   (864 words)

  
 Daniel Fry Dot Com: Understanding Volume 14 Number 8   (Site not responding. Last check: 2007-10-12)
The main purpose of the work of this team is a permanent-so far as possible-watching of the moon, with the aim of detecting and proclaiming quickly any ``transient lunar phenomena" to other colleagues.
But as Gerard Kuiper, director of the lunar and planetary lab at University of Arizona, acknowledged, infinity is a metaphysical concept that man's present consciousness cannot grasp.
Bok and Dr. Kuiper agree it would be "silly" not to expect there is intelligent life on other planets, though perhaps not, in our solar system.
danielfry.com /?1129   (5995 words)

  
 Battle of Maxia - Memory Alpha - A Wikia wiki
The Battle of Maxia was the unofficial name of a confrontation that took place in the Maxia Zeta system in 2355, in which the Federation starship USS Stargazer, under the command of Captain Jean-Luc Picard, was attacked by a Ferengi vessel, commanded by the son of DaiMon Bok.
This ship later turned out to be a Ferengi vessel that may have been hiding within a deep lunar crater and was launched from said moon, though scans indicated no launch complex.
The starship was eventually recovered by Bok, and used in his scheme to seek revenge against Picard, as well as to discredit the role of the "Hero of Maxia" in the Battle of Maxia with falsified logs claiming that Picard had been the one to attack the Ferengi ship without provocation.
memory-alpha.org /en/wiki/Battle_of_Maxia   (369 words)

  
 Bok (lunar crater) - Wikipedia, the free encyclopedia
The inner walls slope gently down to the nearly level interior floor, which has a central peak near the mid-point.
There is a slight inward bulge along the northwest wall.
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/Bok_(lunar_crater)   (166 words)

  
 Stargazer MMIII No. 9
Lunar maria -- dark areas that can be seen with the naked eye -- have been accumulating craters from NEA impacts since their formation more than 3 billion years ago.
Because current NEA population matches the crater counts from the lunar maria, the NEA population has been roughly in equilibrium for billions of years.
In other words, new asteroids are introduced into near-Earth space at around the same rate that old NEAs are destroyed by collisions with the planets and the sun or are ejected from the solar system.
members.tripod.com /everett_astronomy/stargazer_mmiii_09.htm   (6890 words)

  
 [No title]
But I was fascinated by watching the moons of Jupiter as they circled around the planet casting their shadows occasionally on the disk, the craters and mountains on the moon, Saturn's rings, and the nebulae.' (Seabrook p20) Wood received a B.A. in chemistry and natural history from Harvard in 1891.
He photographed landscapes, and especially the moon using his filter, using three minute exposures and finding lunar features that were not apparent in visual light, such as a large area near the crater Aristarchus that is fl in UV but barely visible in yellow light.
A refueling stop on the moon was illustrated by Wood using a series of photographs of models he made of lunar craters (with cutout photos of ocean divers in pressure suits), the distant earth painted on a ball, the ray gun exploding the asteroid, with backdrops of a fl sky with stars.
www.europa.com /~telscope/wood.txt   (6424 words)

  
 Amazon.fr : Shoemaker: The Man Who Made an Impact: Livres en anglais: David H. Levy   (Site not responding. Last check: 2007-10-12)
Their names are memorably linked to Comet Shoemaker-Levy 9, which they discovered in 1993 and which captured worldwide attention when 21 fragments of it crashed into Jupiter in July of 1994.
Eugene M. Shoemaker, who died in an automobile accident in 1997, was a geologist who spent much of his career studying impact craters on the moon and Earth.
And his wish to go to the moon, thwarted by his health, was fulfilled when the spacecraft Lunar Prospector, carrying one ounce of his ashes, crashed onto the lunar surface five years to the week after the last traces of Comet Shoemaker-Levy 9 disappeared.
www.amazon.fr /Shoemaker-Man-Who-Made-Impact/dp/0691113254   (650 words)

  
 EARTH CHANGES TV - SPACE
And, in the lower left of the image, astronomers have identified two tadpole-shaped "emission nebulae," which are thought to be gas and dust from protoplanetary disks.
Accurate profiles of the lunar terrain are important because they help scientists interpret solar eclipses and address issues like the constancy of the sun's diameter and its long-term energy output.
Erich Karkoschka, a researcher at the Lunar and Planetary Lab of The University of Arizona in Tucson, made the discovery.
www.earthchangestv.com /space/index.htm   (5030 words)

  
 [No title]
Comet showers (and their accompanying water-rich dust) may be important sources of volatiles for the planets, and the known lunar and terrestrial cratering rates may allow us to constrain the population of the inner Oort Cloud.
Our project to determine the isotopic composition of Cr in the sun, through solar wind trapped in lunar soils, is also entering the fruit-bearing stage: We have done the etches on size- and mineral-separated fractions of two 50-gram soil samples, and mass spectrometric analyses are beginning.
This work is expected to provide a definitive resolution of hypotheses competing to explain the so-called "radial gradient" in the abundance of 54Cr, which is often taken to represent radical heterogeneity in the distribution of the short-lived radionuclide 53Mn.
research.hq.nasa.gov /code_s/nra/current/NRA-01-OSS-01-SSO/winners.html   (19059 words)

  
 NASA, art, animal, landscape photo wallpaper links Page76
Lingering Lunar Eclipse (Large version) Credit and Copyright: Noel Munford (Palmerston North Astronomical Society, New Zealand) Explanation: As the Moon passed almost directly through the center of Earth's shadow on July 16th, sky gazers in the Pacific hemisphere were graced by a lingering lunar eclipse.
Haunting red hues of diminished moonlight, common during the total phase of a lunar eclipse, are evident at the far right, along the slimmer portion of the trail.
Recent observations of dust-darkened Bok Globule BHR 71, however, show evidence for two young stars forming deep in the cloud, likely close enough to form a binary.
funandmagic.com /photolinks76.html   (2222 words)

  
 Night Sky Observer - Astronomy & Space News   (Site not responding. Last check: 2007-10-12)
At the Spirit rover's site in Gusev Crater, the appearance of a mini-tornado, or dust devil, is a sign of spring.
Dust devils are familiar to observers in the American Southwest but on Mars, the ground path of dust devils criss-cross the plains as long-lived evidence of the changing seasons.
Researchers have identified what may be the perfect place for a Moon base, a crater rim near the lunar north pole that's in near-constant sunlight yet not far from suspected stores of water ice.
www.nightskyobserver.com /news_042005.htm   (8819 words)

  
 A History of the First Forty Years of the Amateur Astronomers Association
On November 20, 1940 Dr. Bart J Bok lectured on "The Rotation of the Galaxy." In February 1941 George V. Plachy became a member of the Board of Directors.
Notable lectures that season were by Spitzer, Bok, Harwood, Robert Wolff, Lynch, Gartlein, Fisher, and van de Kamp.
He was to direct the AAA Camera Station for several years, the station had been the site for meteor observing and lunar eclipse observing.
www.aaa.org /aaahistartic.htm   (8111 words)

  
 Origins of Wicca
When Crowley died in December, 1947, Gardner was in the United States conferring with Jack Parsons, the rocket scientist and OTO member.
Parsons was one of the founders of the Jet Propulsion Laboratory and inventor of the fuel that took the Apollo astronauts to the moon; in 1972, a crater on the dark side of the moon was named in his honor.
She changed Crowley's Scarlet Woman ("in whom all power is given"), a vessel for stellar forces, into the coven High Priestess who ruled the coven with its solar and lunar rituals.
www.nightwing.awebspider.com /originsofwicca.htm   (3283 words)

  
 April 2006 Top Stories | SpaceRef - Your Space Reference
Opaque, dark knots of gas and dust are called "Bok globules," and they are absorbing light in the center of the nearby emission nebula and star-forming region, NGC 281.
Names for seven craters in the Apollo basin on the Moon have been provisionally approved by the IAU to honor the seven Space Shuttle Columbia astronauts.
New measurements of lunar rocks returned by the Apollo missions have revealed that a number of the rocks show signs of melting suggesting that the moon - and its nearby neighbor Earth - were bombarded by a series of large meteorites at that time.
www.spaceref.com /news/april2006.html   (4253 words)

  
 [No title]
basin Large impact crater on a planet, usually several hundred kilometers across, flooded with basaltic lava and surrounded by concentric rings of faulted cliffs.
Bok globule A relatively small, dense, dark cloud of interstellar gas and dust, usually silhouetted against bright clouds.
impact crater A roughly circular depression of any size (known examples range from microscopic size to diameters greater than 1000 km) caused by a meteorite impact.
www.astro.umass.edu /~dmac/Work/glossary.html   (15278 words)

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