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Topic: Syrtis Major

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	Syrtis Major
		Its existence was first noted by Christiaan Huygens; in fact, it was the first permanent feature to be seen on the surface of any planet.
		Later observers noticed that Syrtis Major, and features surrounding it, were subject to seasonal changes, the nature of which was the cause of much speculation (see Mars, changes on).
		In the accompanying picture, taken by the Hubble Space Telescope, Syrtis Major is the prominent dark shape in the center.
	www.daviddarling.info /encyclopedia/S/SyrtisMajor.html (160 words)

	SyrtisMajor.Net (Site not responding. Last check: 2007-11-02)
		The Syrtis Major Planitia is a prominent terrain feature near the boundry of the northern lowlands and southern highland of Mars.
		Due to visible colour changes in the Syrtis Major region, thought to be caused by the martian seasons, it was once thought that it might be shallow sea, or even home to some form of vegetation.
		Still, there is a theory that the Syrtis may once have been home to bacterial colonies living inside rocks: meteorites from Mars have discovered on earth that match the expected geoglogy (or areology) of the Syrtis Major, and show tiny structures that some scientist believe are the fossils of martian micro-organisms.
	www.syrtismajor.net (459 words)

	Syrtis Major Hemisphere Photo
		Mosaic of the Syrtis Major hemisphere of Mars projected into point perspective, a view similar to that which one would see from a spacecraft.
		The dark blue area to the right of Arabia, called Syrtis Major Planum, is a low-relief volcanic shield of probable basaltic composition.
		The bright yellow area to the right of Syrtis Major is Isidis Planitia, an ancient impact basin.
	store.spaceimages.com /symahe.html (220 words)

	Syrtis Major - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-11-02)
		Mars digital-image mosaic merged with color of the MC-13 quadrangle, Syrtis Major region of Mars.
		Syrtis Major Planitia is a "dark spot" (an albedo feature) located in the boundary between the northern lowlands and southern highlands of Mars.
		It includes a high-altitude bulge that rises 6 km (3.7 miles) at 310° W. Syrtis Major was the object of much observation due to its seasonal and long-term variations.
	en.wikipedia.org /wiki/Syrtis_Major (305 words)

	Hartmann (William K.) A Traveler's Guide to Mars Summary
		Syrtis Major (named after the Gulf of Sirte in Libya) is one of the most prominent dark features on the planet (see image at top of this page).
		Laser altimetry from MGS has shown that Syrtis Major has the contour of an enormous shield volcano rising about 2 kilometers, so that when soil is weathered away, it blows off this mountain.
		This is a major outflow channel with evidence of multiple episodes of flows at differing times, including a beautifully imaged small arroyo 200 meters wide winding through the larger channel.
	www.mcgoodwin.net /pages/otherbooks/wh_marsguide.html (4630 words)

	Mars
		Syrtis Major is the large dark region that can be seen in the last 3 images, moving in from the right limb.
		For Californians, there were opportunities to observe the Syrtis Major region in early June and late July, so the latter images will be very obscured.
		Syrtis Major is barely visible left of center in the left image, taken July 19, 2001, and not visible at all in the right image, taken July 20, 2001.
	members.cox.net /brucelgary/AstroPhotos/Mars/mars.htm (791 words)

	Two days observing Mars
		There were small dark marks between the north end of Syrtis Major and the Northern Polar cap.
		Syrtis Major was showing some nice irregularities ("bays") around its border.
		Later as Syrtis Major was heading toward the limb and Sinuss Sabaeus coming into view Utopia was easier to see.
	observers.org /reports/99.04.17.7.html (890 words)

	SPACE.com -- Study Reveals Young Mars Was A Wet World
		The large, dark area right of center on the hemisphere view is Syrtis Major.
		The mineral maps were created using data from OMEGA, the major spectrometer aboard the Mars Express, as well as related observations collected by other Mars orbiters and the two rovers.
		And evidence for that life is most likely to be found in the Syrtis Major volcanic plateau, in Nili Fossae and in the Marwth Vallis Regions, two regions rich in the clay minerals abundant during Mars' youth.
	www.space.com /scienceastronomy/060420_mars_water.html (552 words)

	CyberSpace! - global view - Syrtis Major
		This is a mosaic of the Syrtis Major hemisphere of Mars projected into a point perspective, a view similar to that which one would see from a spacecraft.
		The dark area to the right of Arabia, called Syrtis Major Planus, is a low-relief volcanic shield of probable basaltic composition.
		Regions to the west and south of Syrtis Major are heavily cratered and relatively old.
	library.thinkquest.org /12659/solar_system/mars/syrtis_major.html (163 words)

	Cosmic Voyage-The Online Resource for Amateur Astronomers (Site not responding. Last check: 2007-11-02)
		Syrtis Major's thumb, a small dark projection along the preceding edge, is visible just north of the equator.
		Syrtis Minor appears as a dark interior region near the preceding limb.
		Syrtis Major appears quite foreshortened from this viewing angle.
	hometown.aol.com /billferris/mars060901.html (426 words)

	Research Interests
		However, the data are consistent with a partial fill of the basin with melt water that originated from a retreat of the south polar cap during the middle history of Mars, the Hesperian.
		One major motivation for this research was to investigate the modification of the Isidis basin rim by lava flows from Syrtis Major.
		Crater counts reveal that Syrtis Major is older than previously thought and new topography data indicate that the Syrtis Major lavas are extremely flat and only 0.5-1 km thick.
	www.uni-muenster.de /Planetologie/members/hiesinger/research/research_interests.html (1976 words)

	Mars Art Gallery Image of Bright Wind Streaks in Syrtis Major
		The source data for this image was a Viking Orbiter 1 image frame taken in April 1980 as a part of the Viking Medium Resolution Mapping Sequence mission.
		The target area is 5° north latitude and 295° west longitude, a part of Syrtis Major Planitia located in the Syrtis Major quadrangle.
		In addition to noise removal and contrast enhancement, false color was created from a palette of colors representative of Mars.
	www.marsartgallery.com /o_syrtismajorwindstreaks.html (270 words)

	Mars 2005
		Syrtis Major is very prominent and very well resolved.
		Syrtis Major is at the CM with Syrtis Minor on the left.
		This is an image of Mars with Sinus Sabaeus at the center and Syrtis Major setting on the left.
	www.christone.net /astro/mars (1500 words)

	The Planet Mars: A History of Observation and Discovery. Chapter 15: Observing Mars. University of Arizona Press.
		A low-relief shield volcano has been identified within Syrtis Major whose eruptions were the source of the dark materials covering the region; and indeed, the whole region is an elevated volcanic plateau.
		There are two huge basins in the Syrtis Major region of the planet: Isidis Planitia, which encroaches on Syrtis Major from the northeast, and Hellas, which lies directly to the south and is by far the most prominent basin on Mars.
		Hellas is 2,100 kilometers across and is enclosed on the east by the darkish strip of Mare Hadriaticum (Hadriaca Patera), and on the west by that of Hellespontus.
	www.uapress.arizona.edu /onlinebks/mars/chap15.htm (4328 words)

	TES Education Slide Set No., 1, SLIDE 7 (Site not responding. Last check: 2007-11-02)
		It was one of the first martian surface markings observed by astronomers in the early 15th Century.
		Dark markings like Syrtis Major were once thought to be seas or tracts of vegetation, while bright regions like Arabia were considered to be "deserts." Today we know that bright regions have soils consisting mainly of fine dust, while dark regions have rocky and sandy soils.
		Syrtis Major is about 1,500 km (930 mi) from north to south.
	tes.asu.edu /EDUCATION/slideshows/slides/edss1_7.html (190 words)

	Observing_Mars_4 (Site not responding. Last check: 2007-11-02)
		The Syrtis Major is the planet's most prominent dark area.
		Syrtis Major (300° W, 10° N) Pandorae Fretum (345° W, 25° S) Nilokeras-Lunae L. (60° W, 25° N) Candor-Tharsis (90° W, 10°N) Elysium-Trivium Charontis (210° W, 22° N) Mare Australe (90° W, 75° S) Aonius Sinus (105° W, 47° S).
		Beish, J.D., Parker, D.C., and Capen,C.F. "A Major Martian Dust Storm in 1984," Journal of the Association of Lunar and Planetary Observers (J.A.L.P.O.), Vol.
	www.tnni.net /~dustymars/Observing_Mars_4 (1897 words)

	GPN-2000-000923 - Mars and Syrtis Major
		Over long timescales many of the larger bright and dark markings remain stable, but smaller details come and go as they are covered and then uncovered by sand and dust.
		The dark feature known as Syrtis Major was first seen telescopically by the astronomer Christiaan Huygens in the 17th century.
		To the south of Syrtis is a large circular feature called Hellas.
	grin.hq.nasa.gov /ABSTRACTS/GPN-2000-000923.html (419 words)

	Science & Philosophy :: View topic - Syrtis Major
		This morning on NPR I heard on "stardate" that Syrtis Major is in the southern hemisphere of Mars and is the site of a volcano.
		I mean if you said something along the lines of "Where is Syrtis Major located?" And then gave a location in plotting coordinates or something, it might work.
		Or you could even just ask, "Is Syrtis Major located in the northern or southern hemisphere of Mars?" I found your thought about this fascinating.
	www.sciencechatforum.com /bulletin/viewtopic.php?t=482 (692 words)

	Dust Storm on Mars
		Syrtis Major appeared again, but it was faint in your south portion and Iapygia.
		The Syrtis Major was clearly visible though a little pale, except at the N. end.
		In any case, at CML 253, Syrtis Major should have been clearly visible (by comparison to a drawing of June 5 -- see http://wwwusr.obspm.fr/biver/planetnews.html#mars) but was not identified although the NPC and Utopia seemed clearly identified (so not too much a seeing/wind shake effect).
	elvis.rowan.edu /marswatch/2001/duststorm.html (7495 words)

	Two Weeks on Mars: Notes on regions
		There were dark kernels especially along the neck of the Syrtis, including a large flish mass around the cone of the shield volcano itself.
		Sheehan saw Hellas as a dull grayish mass; brighter in its southern part, a delicate swirl-like pattern in its northern part that at times almost resembled a spiral.
		To Misch, it presented a broad plain enclosed by a nearly circular dark ring, looking at times like some huge ornament crowning the forehead of Syrtis Major.
	mthamilton.ucolick.org /public/TwoWeeksOnMars/drawings/regions.html (1071 words)

	USGS Astrogeology: Martian Hemesphere Images
		A major geologic boundary extends across this mosaic, with the lower third of the image showing ancient cratered highlands; north of this boundary are the lowland northern plains.
		The dark streaks with bright margins emanating from craters in the Oxia Palus region (to the left of Arabia) are caused by erosion an/ or deposition by the wind.
		The dark area to the right of Arabia, called Syrtis Major Planum, is a low-relief volcanic shield of probable basaltic composition.
	astrogeology.usgs.gov /Projects/MarsHemispheres (840 words)

	The Syrtis Star
		The Royal Opera House, Syrtis Major, announces the opening of "The Gondoliers," a new opera by Mssrs.
		Syrtis Major Both Her Majesty's Government and the Martian Royal Palace warn travellers to Syrtis Major of a sudden increase in crimes of the person among the European community of our city.
		Recent shipments of the this celebrated tonic have just been received at their establishments in Syrtis Major and Meepsoor.
	www.heliograph.com /trmgs/trmgs1/syrtis1.shtml (903 words)

	My Observing Log: May/June 2001
		To the trailing edge of Syrtis Major, I saw twin fingers extending toward Aeria.
		Syrtis Major, Hellas, and the NPC were the most obvious and immediate features to come out, and at those best moments, one could even see the shape of Syrtis Major.
		I did not notice any bright area at Elysium, nor between Syrtis Major and Syrtis Minor, but it is probably difficult to do so without filters, and we didn't use any.
	astro.isi.edu /c5plus/june01.html (3487 words)

	Extended surface exposures of granitoid compositions in Syrtis Major, Mars
		The number of quartz and feldspar rich surfaces identified in northwestern Syrtis Major has been extended beyond previously reported results to a region of about 230 by 125 km.
		Though it is possible that the granitoid exposures add to the variety of igneous compositions associated with the Syrtis Major volcanic construct, the geologic context of these exposures suggests a formation that predates Syrtis Major.
		Citation: Bandfield, J. Extended surface exposures of granitoid compositions in Syrtis Major, Mars, Geophys.
	www.agu.org /pubs/crossref/2006/2005GL025559.shtml (223 words)

	Big, Dark Dunes Northeast of Syrtis Major
		For example, beaches on the island of Oahu in Hawaii are light colored because they consist of ground-up particles of seashells, while beaches in the southern shores of the island of Hawaii (the "Big Island" in the Hawaiian island chain) are dark because they consist of sand derived from dark lava rock.
		The dunes in this picture taken by the Mars Orbiter Camera (MOC) are located on the floor of an old, 72 km-(45 mi)-diameter crater located northeast of Syrtis Major.
		The sand is being blown from the upper right toward the lower left.
	www.solarviews.com /cap/mgs/dune4.htm (267 words)

	Marswatch Apparition 1998-1999 Images - April 11-20, 1999
		Syrtis Major appears prominent (3/10) on the CM with a thin (transparent), bright (7/10) cloud over Oenotria appearing to extend from another very bright (8/10) cloud over Libya.
		Astaboras and Astaborae Fons are visible extending from the north-following (Nf) corner of Syrtis Major.
		The seeing was just good enough to be able to identify a few of the major surface features, some of which are identified in the image on the right.
	www.astroleague.org /marswatch/images/m199904/index2.html (2378 words)

	Crown Colony of Syrtis Major (Site not responding. Last check: 2007-11-02)
		The next conflict was with Syrtis Major, to the south, and its client states, in 1880.
		The end of that war saw Syrtis Major, Haatt, and Avenel under British rule as the Crown Colony of Syrtis Major.
		A view of the city of Syrtis Major from the Meepsoor Canal
	ourworlds.topcities.com /space1889/mars/crown-colony.html (258 words)

	Cosmic Voyage-The Online Resource for Amateur Astronomers (Site not responding. Last check: 2007-11-02)
		The outline of Syrtis Major shows more irregularity and structure.
		The two stubs along the west side of Syrtis Major are Deltolton Sinus.
		Tritonus Sinus and Mare Cimmerium are visible as a subtle triangular grey patch reaching from the preceding (east) limb toward Syrtis Minor.
	hometown.aol.com /billferris/mars041999.html (196 words)

	Mars Odyssey THEMIS Image: Syrtis Major 06-06-2002 \| Mars Today - Your Daily Source of Mars News
		This image, located near the equator and 288W (72E), is near the southern edge of a low, broad volcanic feature called Syrtis Major.
		Syrtis Major is one of the darkest regions on Mars and it is as dark as fresh basalt flows or dunes are on Earth.
		Syrtis Major is one of the darkest regions on Mars because it is made of basalt.
	www.marstoday.com /viewsr.html?pid=5688 (774 words)

	NASA's Cosmos
		To the south of Syrtis Major is the large circular impact basin Hellas (center bottom) filled with surface frost and shrouded in bright clouds of water ice.
		The seasonal north polar cap (top center) is rapidly sublimating, or evaporating from solid dry ice to carbon dioxide gas, revealing the smaller residual water ice cap with its collar of dark sand dunes.
		From his observations of Syrtis Major, Huygens concluded that the rotation period of Mars is about 24 hours.
	ase.tufts.edu /cosmos/print_images.asp?id=8 (4688 words)

	South Polar Wind Streak :: Mars Astrobiology Magazine :: Search for Life on Mars
		Summary: Today's images from Mars include: South Polar Wind Streak and Syrtis Major (Released 18 May 2004), from the Mars Global Surveyor and 2001 Mars Odyssey spacecrafts.
		This image of Syrtis Major was acquired August 20, 2002, during northern spring.
		The THEMIS VIS camera is capable of capturing color images of the martian surface using its five different color filters.
	mars.astrobio.net /news/article418.html (672 words)

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