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Topic: 87 Sylvia


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  Triplicity of 87 Sylvia
Because 87 Sylvia was named after Rhea Sylvia, the mythical mother of the founders of Rome, the team proposed naming the twin moons after those founders: Romulus and Remus.
Sylvia's moons are considerably smaller, orbiting in nearly circular orbits and in the same plane and direction.
The asteroid 87 Sylvia is one of the largest known from the asteroid main belt, and is located about 3.5 times further away from the Sun than the Earth, between the orbits of Mars and Jupiter.
www.obspm.fr /actual/nouvelle/aug05/sylvia.en.shtml   (548 words)

  
 8.10.2005 - First triple asteroid system found
Because 87 Sylvia was named after Rhea Sylvia, the mythical mother of the founders of Rome, Marchis proposed naming the twin moons after those founders: Romulus and Remus.
The asteroid 87 Sylvia is one of the largest known from the asteroid main belt, which is located between the orbits of Mars and Jupiter.
Sylvia's newly discovered moons orbit in nearly circular orbits in the same plane and direction (prograde) as the moon orbits the Earth.
www.berkeley.edu /news/media/releases/2005/08/10_sylvia.shtml   (1355 words)

  
 First Triple Asteroid Discovered - Planetary News | The Planetary Society
87 Sylvia itself was known to have one companion ever since the discovery of its first moon in 2001.
87 Sylvia is named after Rhea Sylvia of Roman mythology, so it is only natural that her two moons are named after Sylvia’s two sons – Remus and Romulus, the founders of Rome.
According to Marchis and his colleagues, 87 Sylvia was probably formed when an ancient asteroid collided with another and crumbled under the impact.
www.planetary.org /news/2005/0813_First_Triple_Asteroid_Discovered.html   (715 words)

  
 87 Sylvia - Wikipedia, the free encyclopedia
87 Sylvia (sil'-vee-a) is one of the largest main belt asteroids.
Sylvia is remarkable for being the first known asteroid to possess more than one moon.
Sylvia is also a fairly fast rotator, turning about its axis every 5.18 hours (giving an equatorial rotation velocity of about 160 km/h or 98 mph).
en.wikipedia.org /wiki/87_Sylvia   (803 words)

  
 Three's Company: Asteroid 87 Sylvia and her two moons: Science News Online, Aug. 13, 2005   (Site not responding. Last check: 2007-11-06)
Marchis and his colleagues became interested in 87 Sylvia, one of the largest rocks in the asteroid belt between Mars and Jupiter, after another team announced in 2001 that it had discovered a single moon circling the asteroid.
The orbits of both moons, along with the size of 87 Sylvia, reveal that the large asteroid has an average density less than half that of solid rock, the team calculates.
Discovered in 1866, 87 Sylvia is named after Rhea Sylvia, the mythical mother of the founders of Rome.
www.sciencenews.org /articles/20050813/fob5.asp   (607 words)

  
 A Closer Look at Main-Belt Asteroids 1: WF/PC Images
This implies that the companion to 87 Sylvia is much older than the other two, and/or that 45 Eugenia and 107 Camilla have been resurfaced more recently than their companions.
That the companion to 87 Sylvia has the same color as the primary indicates that either the surfaces are of substantially the same age, or that the “resurfacing” processes don’t have a big effect on the surface of 87 Sylvia (or have an equal effect on the companion and primary).
Note that the bright spot to the lower right of 87 Sylvia does not appear on the other images in the sequence, and so is not another companion.
pages.towson.edu /astorrs/research/cpaper.htm   (3269 words)

  
 Paradoxes Resolved, Origins Illuminated - An asteroid with two satellites
The main asteroid, named 87 Sylvia, is one of the largest known to orbit the Sun in the main asteroid belt, between Mars and Jupiter.
Asteroid 87 Sylvia was named for Rhea Sylvia, the mythical mother of the founders of Rome.
Sylvia completes one rotation about its axis -- a day -- every 5 hours and 11 minutes.
www.metaresearch.org /msgboard/topic.asp?TOPIC_ID=712   (411 words)

  
 [52.02] Discovery and characterization of binary asteroids 22 Kalliope and 87 Sylvia   (Site not responding. Last check: 2007-11-06)
A companion to asteroid 22 Kalliope was discovered at the 10-m Keck II telescope on Mauna Kea on UT Aug. 29.6, with follow-up observations on Aug 31.6 and Sep 1.6 [1].
87 Sylvia is a P-type asteroid with a diameter of 271 +/- 13.3 km [3].
The satellite of 87 Sylvia was also detected on HST images [5].
www.aas.org /publications/baas/v33n3/dps2001/569.htm   (364 words)

  
 Discovery Channel :: News :: Triple Asteroid System Discovered   (Site not responding. Last check: 2007-11-06)
Serendipitously, Sylvia was originally named after Rhea Sylvia, the mythical mother of Romulus and Remus, the twin founders of Rome.
Like some other large asteroids that have been studied in the asteroid belt, the 175-mile (280 kilometer) wide 87 Sylvia is a loosely packed pile of rubble, the researchers report.
Sylvia herself is an irregular, potato-shaped body that spins around once every 5 hours and 11 minutes.
dsc.discovery.com /news/briefs/20050808/tripleasteroid.html   (510 words)

  
 Science News for Kids: Snapshot: Asteroid Moons   (Site not responding. Last check: 2007-11-06)
The asteroid, called 87 Sylvia, is one of the largest in the asteroid belt, a collection of rocky objects that orbit the sun between Mars and Jupiter.
After the announcement of 87 Sylvia's first moon, an astronomer from the University of California, Berkeley and several coworkers wanted to see if there were additional moons.
By analyzing the orbits of 87 Sylvia's moons, the astronomers were able to learn more about the asteroid itself.
www.sciencenewsforkids.org /articles/20050824/Note2.asp   (422 words)

  
 Centauri Dreams » Blog Archive » Triple Asteroid Discovered   (Site not responding. Last check: 2007-11-06)
Asteroid 87 Sylvia, known since 2001 to be part of a double system, has just gotten more interesting.
87 Sylvia was named for Rhea Sylvia, the mother of the founders of Rome.
87 Sylvia, which orbits between Jupiter and Mars roughly 3.5 AU from the Sun, is potato-shaped and measures some 380 x 260 x 230 kilometers.
www.centauri-dreams.org /?p=100   (597 words)

  
 Astronomy - Sylvia and her moons - Laura Baird
Sylvia, which was discovered in 1866, resides 3.5 AU away in the main asteroid belt, between Mars and Jupiter's orbits (1 AU is the average Earth-Sun distance).
The asteroid was named for Rhea Sylvia, the mythological mother of the founders of Rome, and the moons have been named after her twin children: Romulus and Remus.
The new data reveal Sylvia's density is only 20-percent greater than water, meaning it is a loose collection of rock and water ice, or what is known as a "rubble-pile" asteroid.
www.astronomy.com /asy/default.aspx?c=a&id=3422   (504 words)

  
 87 Sylvia - Wikipedia
Sylvia è un corpo celeste di grande interesse poiché è il primo asteroide noto a possedere più di un satellite (finora ne sono stati individuati due, ma si crede che possano essercene altri di dimensioni minori).
Sylvia fu scoperto da Norman Robert Pogson il 16 maggio 1866 da Madras (l'attuale Chennai, in India).
Sylvia, inoltre, è un rotatore piuttosto rapido, compiendo un giro completo intorno ai suoi assi ogni 5,18 ore circa (con una velocità di rotazione equatoriale, quindi, pari a circa 160 km/h).
it.wikipedia.org /wiki/87_Sylvia   (936 words)

  
 index
Caption: ESO PR Video Clip 03/05 is an artist rendering of the triple asteroid system showing the large asteroid 87 Sylvia spinning at a rapid rate and surrounded by two smaller asteroids (Remus and Romulus) in orbit around it.
One of these asteroids was 87 Sylvia, which was known to be double since 2001, from observations made by Mike Brown and Jean-Luc Margot with the Keck telescope.
Because 87 Sylvia was named after Rhea Sylvia, the mythical mother of the founders of Rome [3], Marchis proposed naming the twin moons after those founders: Romulus and Remus.
www.eso.org /outreach/press-rel/pr-2005/pr-21-05.html   (1037 words)

  
 APOD: 2005 August 18 - Sylvia, Romulus and Remus   (Site not responding. Last check: 2007-11-06)
Explanation: Discovered in 1866, main belt asteroid 87 Sylvia lies 3.5 AU from the Sun, between the orbits of Mars and Jupiter.
At the center of this composite of the image data, potato-shaped 87 Sylvia itself is about 380 kilometers wide.
Because 87 Sylvia was named after Rhea Silvia, the mythical mother of the founders of Rome,
antwrp.gsfc.nasa.gov /apod/ap050818.html   (202 words)

  
 [No title]
In a discovery hailed as the first of it's kind, Astronomers have discovered a second "moonlet" orbitting around 87 Sylvia, in the asteroid belt between Mars and Jupiter.
At east 60 asteroids in the belt are thought to have moons but 87 Sylvia is the first to be found in a triple system.
The discovery of Sylvia's second moon, using a telescope in Chile, allows for a clearer picture of the asteroid and its origins and will help to explore the stability of such moons.
www.atsnn.com /story/161788.html   (390 words)

  
 The Epoch Times | Asteroid Sylvia has Twins
About 60 asteroids are known to each have an associated companion, but “87 Sylvia” is the first observed to have two.
The 280 km long asteroid, named after the mythical mother of the founders of Rome, was discovered in 1866, one of the largest in a belt of asteroids between Mars and Jupiter.
Sylvia’s two moons are probably left over debris from the collision.
english.epochtimes.com /news/5-8-24/31555.html   (413 words)

  
 ScienceDaily: First Triple Asteroid System Found
Because 87 Sylvia was named after Rhea Sylvia, the mythicalmother of the founders of Rome, Marchis proposed naming the twin moonsafter those founders: Romulus and Remus.
The asteroid 87 Sylvia is one of the largest known from theasteroid main belt, which is located between the orbits of Mars andJupiter.
Sylvia's newly discovered moons orbit in nearlycircular orbits in the same plane and direction (prograde) as the moonorbits the Earth.
www.sciencedaily.com /releases/2005/08/050810135320.htm   (2152 words)

  
 Astrobiology Magazine
Artist's conception shows twin moonlets, Romulus and Remus, orbiting the large main-belt asteroid 87 Sylvia.
Photograph of the asteroid 87 Sylvia, recorded Aug. 9, 2004, using the Very Large Telescope at Cerro Paranal of the European Southern Observatory, shows a pair of smaller moonlets to the left of the primary body.
The discovery was made with one of the European Southern Observatory's 8-meter telescopes (Yepun) of the Very Large Telescope at Cerro Paranal, using the telescope's infrared camera and the high angular resolution provided by the adaptive optics system (NACO).
www.astrobio.net /news/print.php?sid=1681   (1053 words)

  
 2 moons shed light on Sylvia's asteroid - Pittsburgh Tribune-Review   (Site not responding. Last check: 2007-11-06)
87 Sylvia -- a potato-shaped rock about 175 miles long in the asteroid belt between Mars and Jupiter -- is the first asteroid found with two moons in its orbit, according to research published in the current issue of the journal Nature.
It orbits 87 Sylvia at a distance of 860 miles, circling the asteroid every 88 hours.
It orbits 87 Sylvia at a distance of 450 miles, completing one circle every 33 hours.
www.pittsburghlive.com /x/pittsburghtrib/s_363481.html   (292 words)

  
 SPACE.com -- First Asteroid Trio Discovered
A series of images indicates the paths of the two asteroids orbiting Sylvia.
The first pair was noted in 1993, when the Galileo spacecraft spotted the moonlet Dactyl orbiting asteroid Ida. Some pairs involve a smaller satellite, while in others the two objects are roughly equal in size.
When a "cure" is discovered, mutants must choose to remain mutants or become "normal." Loaded with special effects and exclusive extras.
www.space.com /scienceastronomy/050810_asteroid_trio.html   (539 words)

  
 Rubble-pile minor planet Sylvia and her twins
On each of the images, the known small companion was seen, allowing Marchis and his colleagues to precisely compute its orbit.
87 Sylvia is thus not double but triple!
The wealth of details provided by the NACO images show that 87 Sylvia is shaped like a lumpy potato, measuring 380 x 260 x 230 km (see ESO PR Photo 25a/05).
www.eurekalert.org /pub_releases/2005-08/eso-rmp080905.php   (727 words)

  
 Sylvia and S/2001 (87) 1   (Site not responding. Last check: 2007-11-06)
The density is calculated considering an ellipsoid shape for Sylvia's primary a= 192 km, b= 132 km and c= 116 km
Fig 2: Crosses indicate the positions of Sylvia's satellite measured on the data (using a Moffat-Gauss profile).
The dots are the predicted positions of the orbit model.
astro.berkeley.edu /~fmarchis/Science/Asteroids/Sylvia.html   (111 words)

  
 Asteroid 87 Sylvia
Sylvia is one of the biggest asteroids in the asteroid belt and the first where two companions has been discovered.
The asteroids consist of ice and debris and show large hollow spaces.
Sylvia was in 1866 asteroid number 87 to be discovered.
jumk.de /astronomie/solar-system/87-sylvia.shtml   (61 words)

  
 Ataana Energy Healing - Alternative Medicine - Holistic Health
Discovered in 1866, main belt asteroid 87 Sylvia lies 3.5 AU from the Sun, between the orbits of Mars and Jupiter.
Also shown in recent years to be one in a growing list of double asteroids, new observations during August and October 2004 made at the Paranal Observatory convincingly demonstrate that 87 Sylvia in fact has two moonlets - the first known triple asteroid system.
Because 87 Sylvia was named after Rhea Silvia, the mythical mother of the founders of Rome, the discoverers proposed Romulus and Remus as fitting names for the two moonlets.
www.energyhealer.us /solarsystem9.html   (641 words)

  
 Sylvia - Wikipedia, the free encyclopedia
Sylvia (ballet) or Sylvia ou La Nymphe de Diane, a classical ballet with music written by Léo Delibes in 1876
Sylvia (comic strip), a comic strip by Nicole Hollander.
Sylvia Kirby, a country music singer, better known as Sylvia, who had a number of hits during the early 1980s.
en.wikipedia.org /wiki/Sylvia   (172 words)

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