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Topic: Transit of Deimos from Mars


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In the News (Tue 1 Dec 09)

  
  Deimos (moon)   (Site not responding. Last check: 2007-11-06)
Deimos was discovered on August 12, 1877 at about 07:48 UTC (given in contemporary sources as "August 11 14:40" Washington mean time using the old astronomical convention of beginning a day at noon, so 12 hours must be added to get the actual local mean time).
Deimos is probably an asteroid that was perturbed by Jupiter into an orbit that allowed it to be captured by Mars, though this theory is still in some dispute.
As seen from Deimos, Mars would be 1000 times larger and 400 times brighter than the full Moon as seen from Earth, taking up a full 1/11 of the width of a celestial hemisphere.
1-free-software.com /en/wikipedia/d/de/deimos__moon_.html   (473 words)

  
 Mars
Mars has only a quarter the surface area of the Earth and only one-tenth the mass (though its surface area is approximately equal to that of the Earth's dry land because Mars lacks oceans).
The atmosphere on Mars is 95 percent carbon dioxide, 3 percent nitrogen, 1.6 percent argon, and traces of oxygen and water.
The datum for Mars is defined by the fourth-degree and fourth-order spherical harmonic gravity field, with the zero altitude defined by the 610.5 Pa (6.105 mbar) atmospheric pressure surface (approximately 0.6% of Earth's) at a temperature of 273.01 K. This pressure and temperature correspond to the triple point of water.
www.arikah.com /encyclopedia/Mars   (2926 words)

  
 Transit of Deimos from Mars - Wikipedia, the free encyclopedia
A transit of Deimos across the Sun as seen from Mars takes place when Deimos passes directly between the Sun and a point on the surface of Mars, obscuring a small part of the Sun's disc for an observer on Mars.
The angular diameter of Deimos is only 2 1/2 times the angular diameter of Venus from Earth during a transit of Venus from Earth.
Thus transits of Deimos happen during Martian autumn and winter in the northern hemisphere and the southern hemisphere, roughly symmetrically around the winter solstice.
en.wikipedia.org /wiki/Transit_of_Deimos_from_Mars   (666 words)

  
 Transit of Venus from Mars   (Site not responding. Last check: 2007-11-06)
A transit of Venus across the Sun as seen from Mars takes place when the planet Venus passes directly between the Sun and Mars, obscuring a small part of the Sun's disc for an observer on Mars.
No one has ever seen a transit of Venus from Mars, but the next one will take place on August 20 2030, and could be observed by hypothetical future Mars colonists.
Transits of Venus from Mars occur much more often than transits of Earth from Mars, and also much more often than transits of Venus from Earth.
www.factsite.co.uk /en/wikipedia/t/tr/transit_of_venus_from_mars.html   (467 words)

  
 Transit of Earth from Mars
A transit of Earth across the Sun as seen from Mars takes place when the planet Earth passes directly between the Sun and Mars, obscuring a small part of the Sun's disc for an observer on Mars.
Transits of Earth from Mars follow a 284-year cycle, occurring at intervals of 100.5, 79, 25.5, 79 years in either May or November.
This cycle corresponds fairly closely to 151 Mars orbits, 284 Earth orbits, and 133 synodic periods, and is analogous to the cycle of transits of Venus from Earth, which follow a cycle of 243 years (121.5, 8, 105.5, 8).
publicliterature.org /en/wikipedia/t/tr/transit_of_earth_from_mars.html   (483 words)

  
 Mars (planet)   (Site not responding. Last check: 2007-11-06)
Mars is the fourth planet from the Sun in the solar system, named after the Roman god of war (the counterpart of the Greek Ares), on account of its blood red color as viewed in the night sky.
Mars has only a quarter the surface area of the Earth and only 1/10th the mass (though because it lacks oceans the area of Mars' accessible dry land is approximately equal to that of the Earth's dry land).
There are also transits of Mercury and transits of Venus, and the moon Deimos is of sufficiently small angular diameter that its partial "eclipses" of the Sun are best considered transits (see Transit of Deimos from Mars).
www.bidprobe.com /en/wikipedia/m/ma/mars__planet_.html   (1701 words)

  
 Astronomical transit -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-06)
A transit is the (Click link for more info and facts about astronomical) astronomical event that occurs when one (Natural objects visible in the sky) celestial body appears to move across the face of another celestial body, as seen by an observer at some particular vantage point.
A transit of Mars across Jupiter on 12 Sep 1170 was observed by the monk Gervase at (A town in Kent in southeastern England; site of the cathedral where Thomas a Becket was martyred in 1170; seat of the archbishop and primate of the Anglican Church) Canterbury, and by Chinese astronomers.
During a transit there are four "contacts", when the (The length of the closed curve of a circle) circumference of the small circle (small body disk) touches the circumference of the large circle (large body disk) at a single point.
www.absoluteastronomy.com /encyclopedia/A/As/Astronomical_transit.htm   (1040 words)

  
 Transit of Mercury from Mars   (Site not responding. Last check: 2007-11-06)
A transit of Mercury across the Sun as seen from Mars takes place when the planet Mercury passes directly between the Sun and Mars, obscuring a small part of the Sun's disc for an observer on Mars.
Transits of Mercury from Mars are much more common than transits of Mercury from Earth: there are several per decade.
The Mars Rovers Spirit and Opportunity might be able to observe the transit on January 12 2005 (from 14:45 UTC to 23:05 UTC) if they are still functional at that time and if their cameras are capable of sufficient resolution.
www.factsite.co.uk /en/wikipedia/t/tr/transit_of_mercury_from_mars.html   (322 words)

  
 Transit of Phobos from Mars - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-11-06)
A transit of Phobos across the Sun as seen from Mars takes place when Phobos passes directly between the Sun and a point on the surface of Mars, obscuring a large part of the Sun's disc for an observer on Mars.
Thus transits of Phobos happen during Martian autumn and winter in the northern hemisphere and the southern hemisphere, roughly symmetrically around the winter solstice.
Mars Rover Opportunity photographed transits of Phobos on March 7 2004 and March 10 2004 and March 12 2004.
leessummit.us /project/wikipedia/index.php/Transit_of_Phobos_from_Mars   (768 words)

  
 Encyclopedia: Astronomical transit   (Site not responding. Last check: 2007-11-06)
A transit of Deimos from Mars: Deimos is in transit across the Sun, as seen from Mars by Mars Rover Opportunity on March 4, 2004 at 03:03:43 UTC Earth time.
In this speech an annular solar eclipse is a transit of the moon before the sun, while a total solar eclipse is an occultation of the sun by the moon.
Deimos transits the Sun, as seen by Mars Rover Opportunity on March 4, 2004 A transit of Deimos across the Sun as seen from Mars takes place when Deimos passes directly between the Sun and a point on the surface of Mars, obscuring a small part of the Suns...
www.nationmaster.com /encyclopedia/Astronomical-transit   (4003 words)

  
 CONK! Encyclopedia: Astronomical_transit   (Site not responding. Last check: 2007-11-06)
A transit is the astronomical event that occurs when one celestial body appears to move across the face of another celestial body, as seen by an observer at some particular vantage point.
One such case occurred on March 21, 1894 at around 23:00 UTC, when Mercury transited the Sun as seen from Venus, and Mercury and Venus both simultaneously transited the Sun as seen from Saturn (see Transit of Mercury from Saturn and Transit of Venus from Saturn).
During a transit there are four "contacts", when the circumference of the small circle (small body disk) touches the circumference of the large circle (large body disk) at a single point.
www.conk.com /search/encyclopedia.cgi?q=Astronomical_transit   (671 words)

  
 Deimos (moon) -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-06)
Deimos (dye'-mus or dee'-mus; Greek Δείμος) is the smaller and outermost of (The 4th planet from the sun) Mars' two (Any natural satellite of a planet) moons, named after (The outer of two small satellites of Mars) Deimos from Greek Mythology.
Deimos is probably an asteroid that was perturbed by ((Roman mythology) supreme god of Romans; counterpart of Greek Zeus) Jupiter into an (The (usually elliptical) path described by one celestial body in its revolution about another) orbit that allowed it to be captured by Mars, though this hypothesis is still in some dispute.
As seen from Deimos, Mars would be 1000 times larger and 400 times brighter than the full (Any natural satellite of a planet) Moon as seen from Earth, taking up a full 1/11 of the width of a celestial hemisphere.
www.absoluteastronomy.com /encyclopedia/D/De/Deimos_(moon).htm   (721 words)

  
 Deimos (moon) - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-11-06)
Deimos (dye'-mus or dee'-mus; Greek Δείμος) is the smaller and outermost of Mars' two moons, named after Deimos from Greek Mythology.
Deimos is probably an asteroid that was perturbed by Jupiter into an orbit that allowed it to be captured by Mars, though this hypothesis is still in some dispute.
Diagram of the orbits of Phobos and Deimos
www.northmiami.us /project/wikipedia/index.php/Deimos_(moon)   (584 words)

  
 * Deimos - (Astronomy): Definition   (Site not responding. Last check: 2007-11-06)
Mars II Deimos ("DEE mos") is the smaller and outermost of Mars' two moons.
Mars II Deimos [DEE-mos] (panic) is a moon of Mars and was named after an attendant of the Roman war god Mars.
Deimos (meaning "terror") is the smaller of the two tiny moons of Mars.
www.bestknows.com /astronomy/deimos.html   (704 words)

  
 DEIMOS (MOON) FACTS AND INFORMATION   (Site not responding. Last check: 2007-11-06)
Deimos (IPA or ; Greek ''Δείμος'': "Dread"), is the smaller and outermost of Mars' two moons, named after Deimos from Greek_Mythology.
Deimos' discovery in 1877 coincides with Bungie's tendency to use the number seven often.
Deimos is the location of one of the UAC bases where part of the story of computer game ''Doom'' takes place.
www.witwik.com /Deimos_(moon)   (649 words)

  
 * Phobos - (Astronomy): Definition   (Site not responding. Last check: 2007-11-06)
This is a collection of all the color imagery taken by Phobos II containing both Phobos and Mars, and Mars alone as shown in the upper right-hand corner...
Phobos orbits at a distance of less than 6000 km from the surface of Mars (9270 km from its centre) and is the largest of both with a maximum diameter equal to 27 km...
Mars may be less differenciated, so there is more iron at the surface and the planet looks ``rusty''.
www.bestknows.com /astronomy/phobos.html   (760 words)

  
 Read about Deimos (moon) at WorldVillage Encyclopedia. Research Deimos (moon) and learn about Deimos (moon) here!   (Site not responding. Last check: 2007-11-06)
Deimos (dye'-mus or dee'-mus; Greek Δείμος) is the smaller and outermost of Mars' two
Deimos was discovered on August 12, 1877 at about 07:48 UTC (given in contemporary sources as "
When Deimos passes in front of the Sun its angular diameter is only about 2.5 times the angular diameter for Venus during a
encyclopedia.worldvillage.com /s/b/Deimos_%28moon%29   (504 words)

  
 Science Fair Projects - Talk:Transit of Deimos from Mars
Contrast with the given Mars time of 10:28:17, but closer to the JPL Horizons time of 10:30:14 for the start of the transit.
As I mentioned on your talk page, there's something fishy about the times given in the IAU Circular, because there is a timespan of 40 seconds between the first and last times given, whereas the actual timespan can only have been 30 seconds (0,10,20,30 for the 4 images).
As before, a Mars hour is 1.027491251 times longer than an Earth hour, but unless we have a more exact value for the PST or UTC time of the start of Sol 38 I don't think we can go any further.
www.all-science-fair-projects.com /science_fair_projects_encyclopedia/Talk:Transit_of_Deimos_from_Mars   (639 words)

  
 Steve Massey's Astronomy Page - Animations   (Site not responding. Last check: 2007-11-06)
Mars is heavily over-exposed taken at f/18 on a 60cm Cassegrain telescope using an Astrovid 2000 camera.
Confident I had plenty of good Mars images on tape and disk nearing the end of my run I decided to mount an Astrovid 2000 camera at the telescopes focus with its shutter speed set at 1/25 of a second and maximum signal gain output.
Although extremely pleased with the images of Mars obtained this year and the performance of the freshly aluminized primary mirror, capturing Deimos was certainly a bonus.
www.members.optushome.com.au /ssmassey/animations/deimos.htm   (334 words)

  
 Mars Deimos eclipse -- AMIGA Astronomy
Opportunity Mars rover used its Panoramic Camera to watch the rare solar crossing of the Sun by the martian moon Deimos Thursday.
The rare solar transit of the martian moon occurs only twice per Mars year (one Mars year equals roughly two Earth years).
Deimos is a dark body that appears to be composed of C-type surface materials, similar to that of asteroids found in the outer asteroid belt.
www.voy.com /135010/142.html   (122 words)

  
 Encyclopedia: Transit of Deimos from Mars   (Site not responding. Last check: 2007-11-06)
Other descriptions of Transit of Deimos from Mars
Opportunity image gallery: Sol 39 (http://marsrovers.jpl.nasa.gov/gallery/all/opportunity_p039.html) (small images of the March 4, 2004 transit are near the bottom of the page).
Spirit image gallery: Sol 68 (http://marsrovers.nasa.gov/gallery/all/spirit_p068.html) (small images of the March 13, 2004 transit are near the bottom of the page).
www.nationmaster.com /encyclopedia/Transit-of-Deimos-from-Mars   (647 words)

  
 Face on Mars   (Site not responding. Last check: 2007-11-06)
The Face on Mars is a large feature on the surface of the planet Mars (planet) located in the Cydonia region.
This interpretation is supported by later photographic evidence from the Mars Global Surveyor probe in 1998 and 2001 and the Mars Odyssey probe in 2002.
Another interpretation of the photo is that it represents an artificial monument of some kind, and some have claimed that its existence is proof that intelligent extraterrestrial life inhabited or visited Mars at some point in the distant past.
read-and-go.hopto.org /Mars/Face-on-Mars.html   (453 words)

  
 invented the first curling iron - 1st curling   (Site not responding. Last check: 2007-11-06)
As a result, Phobos is not visible from latitudes north of 70.4°N or south of 70.4°S; Deimos is not visible from latitudes north of 82.7°N or south of 82.7°S. Observers at high latitudes (less than 70.4°) would see a noticeably smaller angular diameter for Phobos because they are farther away from it.
At some point in the future, Mars will need a Julian-date-like count of days, and the MSD is as good a candidate as any (although some prefer an epoch back around 1608).
The analemma for MarsAs on Earth, on Mars there is also an equation of time that represents the difference between sundial time and clock time as displayed by a Martian timepiece (such timepieces have been made for NASA employees.
curling.treeflock.info /dir6/invented-the-first-curling-iron.html   (855 words)

  
 Transit of Venus from Mars - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-11-06)
The inclination of Venus' orbit with respect to Mars' ecliptic is 1.94°, which is less than its value of 3.39° with respect to Earth's ecliptic.
Transit visibility from planets superior to the transiting body
This page was last modified 07:21, 9 May 2005.
www.bucyrus.us /project/wikipedia/index.php/Transit_of_Venus_from_Mars   (539 words)

  
 Tránsito de Deimos de Marte   (Site not responding. Last check: 2007-11-06)
Un tránsito de Deimos a través del sol según lo considerado de Marte ocurre entre cuando Deimos pasa directamente el sol y un punto en la superficie de Marte, obscureciendo una parte pequeña del disco del sun para un observador en Marte.
Durante un tránsito, Deimos se puede ver de Marte como disco negro pequeño que se mueve rápidamente a través de la superficie del sol.
Durante los tránsitos cada tal intervalo, cero o uno de Deimos se pueden considerar por los observadores en esa ubicación geográfica (comparada alrededor mitad a los tránsitos a la docena de Phobos).
www.yotor.net /wiki/es/tr/Tr%E1nsito%20de%20Deimos%20de%20Marte.htm   (644 words)

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