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Topic: Sagittarius Dwarf Elliptical Galaxy


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  Sagittarius - Wikipedia, the free encyclopedia
Sagittarius lies between Scorpius to the west and Capricornus to the east.
Sagittarius has the rough appearance of a stick-figure archer drawing its bow, and when including the fainter stars, appears to have a horse-like body [3].
The symbol for Sagittarius is the centaur or archer.
www.wikipedia.org /wiki/Sagittarius   (628 words)

  
 sagittarius dwarf elliptical galaxy - Article and Reference from OnPedia.com
Although it is one of the closest companion galaxies to the Milky Way, it is on the opposite side of the galactic core from Earth, and consequently is very faint, although it covers a large area of the sky.
Sag DEG appears to be an older galaxy, with little interstellar dust and composed largely of Population II stars, older and metal-poor compared to the Milky Way.
From its discovery until 2003, it was considered to be the closest outside galaxy to Earth, but since then has been overtaken by the newly discovered Canis Major Dwarf Galaxy.
www.onpedia.com /encyclopedia/Sagittarius-Dwarf-Elliptical-Galaxy   (476 words)

  
 Kids.net.au - Encyclopedia Galaxy formation and evolution -   (Site not responding. Last check: 2007-10-21)
Though the formation, and to some extent the evolution of galaxies still is one of the most active research areas in astrophysics, some ideas are now widely accepted.
Also, spiral galaxies cannot be built up by mergers, since events as violent as a merger would completely mix up the fragile structure of the disk.
In the current universe, it is thought that large spiral galaxies such as M31 and our Milky Way are formed from numerous smaller galaxies being eaten by the larger galaxy.
www.kids.net.au /encyclopedia-wiki/ga/Galaxy_formation_and_evolution   (741 words)

  
 Galaxy formation and evolution - Wikipedia, the free encyclopedia
The formation of galaxies is still one of the most active research areas in astrophysics; and, to some extent, this is also true for galaxy evolution.
High Velocity Clouds, clouds of neutral hydrogen are "raining" down on the galaxy, and presumably have been from the beginning (these would be the necessary source of a gas disk from which the disk stars formed).
If either galaxy were a spiral before the merger, the violence of the event would disrupt the delicate structure of the disk.
www.wikipedia.org /wiki/Galaxy_formation_and_evolution   (1417 words)

  
 Sagittarius - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-10-21)
Sagittarius (♐, and Latin for Archer) is a constellation of the zodiac, commonly depicted as a centaur drawing a bow.
The Milky Way is at its densest as it passes through Sagittarius, as this is where the galactic center lies.
Sagittarius has the rough appearance of a stick-figure archer drawing its bow, and when including the fainter stars, appears to have a horse-like body [3] (http://borghetto.astrofili.org/costellazioni/sagittarius.JPG).
www.sterlingheights.us /project/wikipedia/index.php/Sagittarius   (613 words)

  
 Dwarf elliptical galaxy - Wikipedia, the free encyclopedia
Dwarf elliptical galaxies are very small elliptical galaxies, classified as dE.
There are atleast two dE dwarf ellipticals in orbit around the Andromeda galaxy.
A subtype of dwarf ellipticals is called dwarf spheroidal galaxy.
en.wikipedia.org /wiki/Dwarf_elliptical_galaxy   (145 words)

  
 Sagittarius Dwarf
The Fate of the Sagittarius Dwarf Galaxy- The Fate of the Sagittarius Dwarf Galaxy.
The Sagittarius dwarf galaxy is the nearest galaxy known, subtends an angle of...
Stellar Populations of the Sagittarius Dwarf Irregular Galaxy- Stellar Populations of the Sagittarius Dwarf Irregular Galaxy Stellar Populations of the Sagittarius Dwarf Irregular Galaxy We present deep BV RI CCD photometry of the stars in the dwarf irregular galaxy SagDIG.
www.which-tarot.com /135/sagittarius-dwarf.html   (933 words)

  
 Sagittarius Dwarf Elliptical Galaxy / SagDEG
This hypothesis appears to be supported by direct and indirect observations of the destruction of dwarf galaxies in distant (and therefore ancient) reaches of the universe.
Not to be confused with the Sagittarius Dwarf Irregular Galaxy (SagDIG), SagDEG is the Milky Way's nearest known neighbor and comprised of mostly old, yellowish stars.
Sagittarius is Latin for "archer," often represented as a centaur wielding a bow and arrow since ancient times.
www.solstation.com /x-objects/sag-deg.htm   (2260 words)

  
 Dwarf elliptical galaxy   (Site not responding. Last check: 2007-10-21)
Galaxy PBW a game, or, more precisely, Galaxy PBW is the game engine.
It is based on the well known and popular Galaxy PBEM strategic multiplayer wargame, or, precisely, on the Galaxy Blind(version 2.45) variation of the PBEM Galaxy.
From a Greek word meaning "milk", for the name given to the galaxy we live in, which seen in the night sky from the earth's viewpoint forms a "milky way" or "road of milk" as the spiral arm of the galaxy forms a streak we can faintly see.
www.serebella.com /encyclopedia/article-Dwarf_elliptical_galaxy.html   (494 words)

  
 Headlines@Hopkins: Johns Hopkins University News Releases
They were found to be in a dwarf galaxy located along the line of sight to the center of our galaxy, but on the far side of the Milky Way.
Known as the Sagittarius dwarf spheroidal galaxy -- since it is observed in the direction of the constellation Sagittarius -- it is roughly one-tenth the diameter of the Milky Way but weighs less than one-thousandth as much as the Milky Way.
The galaxy is one of nine known nearby, or companion, dwarf spheroidal galaxies to the Milky Way.
www.jhu.edu /news_info/news/home98/feb98/invader.html   (927 words)

  
 Sagittarius - Encyclopedia Glossary Meaning Explanation Sagittarius   (Site not responding. Last check: 2007-10-21)
Sagittarius has the rough appearance of a stick-figure archer drawing its bow, and when including the fainter stars, appears to have a horse-like body http://borghetto.astrofili.org/costellazioni/sagittarius.JPG.
The greeks identified such a figure as a centaur, wheras earlier cultures, such as the Babylonians, identified it as the god Pabilsag (which also had wings and a lion's head).
The astrological sign Sagittarius (November 22 - December 21) is associated with the constellation.
www.encyclopedia-glossary.com /en/Sagittarius.html   (523 words)

  
 Encyclopedia: Sagittarius Dwarf Elliptical Galaxy   (Site not responding. Last check: 2007-10-21)
NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 56,000 light years in diameter and approximately 60 million light years distant.
The Sagittarius Dwarf Irregular Galaxy or SagDIG is a dwarf galaxy in the constellation of Sagittarius.
The Canis Major Dwarf Galaxy is located in the same part of the sky as the constellation of Canis Major.
www.nationmaster.com /encyclopedia/Sagittarius-Dwarf-Elliptical-Galaxy   (1174 words)

  
 Canis Major Dwarf Galaxy   (Site not responding. Last check: 2007-10-21)
The Canis Major dwarf galaxy is classified as an irregular galaxy and is now thought to be the closest neighbouring galaxy to the Milky Way, being located only 42,000 light-years from the Galactic Center and approximately 25,000 light-years away from our Solar System.
It has a roughly elliptical shape and is thought to contain as many stars as the Sagittarius Dwarf Elliptical Galaxy, the previous contender for closest galaxy to the Milky Way.
It is thought that the open clusters may have formed due to the dwarf galaxy's gravity perturbing material in the galactic disk and stimulating star formation.
en.efactory.pl /Canis_Major_(dwarf_galaxy)   (659 words)

  
 Sagittarius Dwarf Elliptical Galaxy -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-21)
Sag DEG appears to be an older galaxy, with little interstellar dust and composed largely of (Click link for more info and facts about Population II) Population II stars, older and metal-poor compared to the Milky Way.
From its discovery until 2003, it was considered to be the closest outside galaxy to Earth, but since then has been overtaken by the newly discovered (Click link for more info and facts about Canis Major Dwarf Galaxy) Canis Major Dwarf Galaxy.
Sag DEG should not be confused with SagDIG, the (Click link for more info and facts about Sagittarius Dwarf Irregular Galaxy) Sagittarius Dwarf Irregular Galaxy, a small galaxy nearly 4 million light years distant.
www.absoluteastronomy.com /encyclopedia/S/Sa/Sagittarius_Dwarf_Elliptical_Galaxy.htm   (472 words)

  
 Extragalactic Globulars   (Site not responding. Last check: 2007-10-21)
Other globular clusters belonging to the Sagittarius Dwarf Elliptical are Arp 2 and Terzan 7 and 8.
WLM is an easily resolved irregular galaxy that was often a target for Hubble and Baade during the 1920's and 30's.
NGC 185 and NGC 147 are dwarf elliptical companions of M31 lying about one degree apart and some seven degrees north of M31 itself.
www.angelfire.com /id/jsredshift/gcextra.htm   (1187 words)

  
 The Sagittarius Dwarf Elliptical Galaxy, SagDEG
This galaxy was immediately recognized as being the nearest known neighbor to our Milky Way, significantly closer than the Large Magellanic Cloud which was considered to be our closest companion until than.
This dwarf galaxy is called SagDEG (for Sagittarius Dwarf Elliptical Galaxy), or sometimes Sagittarius Dwarf Spheroidal Galaxy; don't confuse it with another member, SagDIG (Sagittarius Dwarf Irregular Galaxy).
These are two minor galaxies in the same constellation Sagittarius, which are of different type: The difference between these types is that dwarf irregulars still have interstellar matter and/or young stars while the dwarf elliptical have only an old yellowish stellar population.
www.seds.org /messier/more/sagdeg.html   (560 words)

  
 Our Milky Way Galaxy and its companions   (Site not responding. Last check: 2007-10-21)
Messier's catalog which are not galaxies on their own (the only possible exception may be M54 which may belong to SagDEG, a small galaxy which is currently in a close encounter with the Milky Way, and thus our closest known intergalactic neighbor).
(Dwingeloo I, Sagittarius Dwarf Elliptical, Antlia Dwarf Spheroidal, Argo Dwarf Irregular, Cepheus I, Pegasus Dwarf Elliptical)
This dwarf galaxy remained undiscovered -- despite its enormous extent on the sky of 5 x 10 degrees -- because it can only be detected as a slight enhancement of the density of stars on the sky; the actual surface brightness of this galaxy is very low.
www.public.asu.edu /~rjansen/localgroup/localgroup.html   (2638 words)

  
 Abstract of ESO Scientific Preprint No 1242   (Site not responding. Last check: 2007-10-21)
The Sagittarius PN progenitor stars are representative of the higher metallicity tail of the Sagittarius population.
The pattern of abundance depletion is similar to that in the only other planetary nebula in a dwarf galaxy companion of the Milky Way, that in Fornax, for which new spectra are presented.
The oxygen abundance of the Sagittarius galaxy deduced from its PN, shows similarities with that of dwarf ellipticals around M 31, advancing the notion that this galaxy was a dwarf elliptical before its interaction with the Milky Way.
www.eso.org /gen-fac/pubs/bin/prep-abs-sci/science-pp-1997.txt/1242   (352 words)

  
 Learn more about Galaxy formation and evolution in the online encyclopedia.   (Site not responding. Last check: 2007-10-21)
After the discovery in the last decade that our own Milky Way has a satellite galaxy (the Sagittarius Dwarf Elliptical Galaxy, or SagDEG) which is currently gradually being ripped up and "eaten" by the Milky Way, it is thought these kinds of events may be quite common in the evolution of large galaxies.
Giant ellipticals are probably formed by mergers on a grander scale.
Eventually all three galaxies will form one giant elliptical galaxy, rushing to take its place in the Virgo Supercluster.
www.onlineencyclopedia.org /g/ga/galaxy_formation_and_evolution.html   (1434 words)

  
 Learn more about Dwarf elliptical galaxy in the online encyclopedia.   (Site not responding. Last check: 2007-10-21)
Learn more about Dwarf elliptical galaxy in the online encyclopedia.
Dwarf elliptical are very small elliptical galaxies, classified as dE.
There are Two Dwarf ellipticals in orbit around the Andromeda galaxy
www.onlineencyclopedia.org /d/dw/dwarf_elliptical_galaxy.html   (134 words)

  
 Astronomy Picture of the Day 9-30-03
This unfortunate neighbor, the Sagittarius Dwarf galaxy, is now seen to be part of a larger Sagittarius Tidal Stream, a loose filament of stars, gas, and possibly dark matter that entangles the Milky Way.
An important resulting realization is that galaxies contain a jumble of clumps and filaments of both dim and dark matter.
The Sagittarius dwarf galaxy is currently being shredded by the Milky Way's gravity, and tossing its stars across the Galaxy.
www.freerepublic.com /focus/f-chat/991976/posts   (978 words)

  
 Sagittarius Dwarf Elliptical Galaxy   (Site not responding. Last check: 2007-10-21)
The Sagittarius Dwarf Elliptical Galaxy (Sag DEG) is a sattelite galaxy of the Milky Way Galaxy.
Roughly 10,000 light years in diamaeter, it is currently about 70,000 light years from Earth and travelling in a polar orbit at a distance of about 50,000 light years from the core of the Milky Way.
Although it is one of the closest companion galaxies to the Milky Way, it was only discovered in 1994.
www.portaljuice.com /sagittarius_dwarf_elliptical_galaxy.html   (156 words)

  
 Sagittarius Dwarf Elliptical Galaxy . Large Magellanic Cloud . Earth . Omega Centauri
dwarf galaxy that is in orbit around our own Milky Way galaxy.
The thin parts are oceanic crust composed of dense mafic iron magnesium silicate Rock geology rocks and underlie the ocean basins.
It is the largest globular cluster associated with the Milky Way that has been discovered to date, and is one of the few that can be seen with the naked...
www.uk.kunsimuna.net /Sagittarius_Dwarf_Elliptical_Galaxy   (661 words)

  
 Sagittarius Dwarf Elliptical Galaxy (SagDEG, Sag dSph)
A satellite galaxy of the Milky Way and the closest external galaxy; it is populated, as usual for a dwarf elliptical galaxy, by old yellowish stars.
It has four known globular clusters — M54, Arp 2, Terzan 7, and Terzan 8 — of which M54 is easily the brightest and was the first extragalactic globular ever found, by Charles Messier in 1778.
SagDEG should not be confused with another member of the Local Group, also in the constellation Sagittarius — the Sagittarius Dwarf Irregular Galaxy (SagDIG).
www.daviddarling.info /encyclopedia/S/SagDEG.html   (286 words)

  
 The Creator’s Handiwork
If you are acquainted with the elliptical orbits of comets, you will understand that it is in the narrow part of the orbit of these cluster stars deep within the cluster—that the most dramatic part of their journey occurs.
—In contrast with the elliptical orbits of the stars within the central sphere and outer clusters, the orbits of stars within the disk are nearly circular and generally placed within 300 light years of the middle plane of the disk.
Ellipticals are different from spiral galaxies, not only in shape, but also in two other ways: (1) They have almost no binary or multiple (two to five or so) star systems in them, mutually circling one another.
www.evolution-facts.org /Ev-V1/1evlch04.htm   (8357 words)

  
 Sagittarius Dwarf Elliptical Galaxy
Chemical Abundances of Planetary Nebulae in the Sagittarius Dwarf Elliptical Galaxy- Chemical Abundances of Planetary Nebulae in the Sagittarius Dwarf Elliptical Galaxy Chemical Abundances of Planetary Nebulae in the Sagittarius Dwarf Elliptical Galaxy Spectrophotometry and imaging of the two planetary nebulae He2-436 and...
The Nuclear Structure of the Sagittarius Dwarf Spheroidal Galaxy- The Nuclear Structure of the Sagittarius Dwarf Spheroidal Galaxy The Nuclear Structure of the Sagittarius Dwarf Spheroidal Galaxy We present a study of the central parts of the Sagittarius dwarf spheroidal galaxy (Sgr).
This unfortunate neighbor, the Sagittarius Dwarf galaxy, is now seen to be part of a larger...
www.which-tarot.com /135/sagittarius-dwarf-elliptical-galaxy.html   (908 words)

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