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Topic: Lenticular galaxy


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In the News (Tue 29 Dec 09)

  
  Galaxies
Galaxies are large systems of stars and interstellar matter, typically containing several million to some trillion stars, of masses between several million and several trillion times that of our Sun, of an extension of a few thousands to several 100,000s light years, typically separated by millions of light years distance.
The most massive galaxies are giants which are a million times more massive than the lightest: Their mass range is from at most some million times that of our Sun in case of the smallest dwarfs, to several trillion solar masses in case of giants like M87 or M77.
Among the biggest Messier galaxies are the Andromeda galaxy M31 and the bright active Seyfert II galaxy M77.
www.seds.org /messier/galaxy.html   (2049 words)

  
 ipedia.com: Lenticular galaxy Article   (Site not responding. Last check: 2007-09-07)
Lenticular galaxy NGC 5866 in Draco A lenticular galaxy is a type of galaxy which is intermediate between elliptical and spiral in the Hubble sequence classification scheme.
A lenticular galaxy is a type of galaxy which is intermediate between elliptical and spiral in the Hubble sequence classification scheme.
Lenticular galaxies are disc galaxies (like spirals) which have used up or lost their interstellar matter (like elliptical galaxies).
www.ipedia.com /lenticular_galaxy.html   (111 words)

  
 Encyclopedia: Lenticular Galaxy NGC 5866
The Spindle Galaxy in Draco (also known as the Spindle Galaxy, Lenticular Galaxy NGC 5866 or NGC 5866) is a lenticular galaxy, type S0_3, in the Draco constellation.
NGC 3115, also called the Spindle Galaxy or the Spindle Galaxy in Sextans, was discovered by William Herschel on February 22, 1787.
NGC 104 Globular Cluster 47 Tucanae (Lacaille I, Bennett 2, Caldwell 106) in Tucana
www.nationmaster.com /encyclopedia/Lenticular-Galaxy-NGC-5866   (336 words)

  
 lenticular galaxy
A galaxy with a central bulge and disk but apparently lacking spiral arms and substantial amounts of interstellar material.
Lenticular galaxies are so named because of their lens-like appearance when seen edge-on.
In the Hubble scheme of galaxy classification, lenticulars are known as S0 galaxies and are intermediate in form between spiral galaxies and ellipticals.
daviddarling.info /encyclopedia/L/lenticular_galaxy.html   (131 words)

  
 APOD Search Results for "lenticular"
Classified as a lenticular galaxy, NGC 5866 has numerous and complex dust lanes appearing dark and red, while many of the bright stars in the disk give it a more blue underlying hue.
Classified as a lenticular galaxy, NGC 4762 presents an edge-on disk as a narrow gash of light while NGC 4754 is a football-shaped elliptical galaxy.
Lenticular clouds are typically formed by high winds over rugged terrain and are particularly apparent when few other clouds are in the sky.
antwrp.gsfc.nasa.gov /cgi-bin/apod/apod_search?lenticular   (1259 words)

  
 Spiral (and other Disk) Galaxies
Spiral galaxies, "normal" and barred, with conspicuous bulges (especially near their center) are classified "Sa" or "SBa", those which have prominent bulges and pronounced arms are clssified "Sb" or "SBb", and those which are dominated by the arms are "Sc" or "SBc".
Some of the galaxies, mostly those who had no closer encounters for a longer period of time, and those who have lost most of their interstellar matter for some reason, do not show any conspicuous pattern within their disks; these are often called "S0" or "lenticular" galaxies.
All disk galaxies have a very different appearance, depending from what direction they are seen, or under which angle toward the line of sight (to us) their disk is inclined.
www.seds.org /messier/spir.html   (727 words)

  
 NGC 5866 / Messier 102 ?
NGC 5866 is a beautiful lenticular galaxy of visual magnitude 9.9, according to newer references; the older Sky Catalogue 2000.0 gives mag 10.0, while Don Machholz has estimated it at 9.6.
This galaxy is the brightest member of a remarkable group of galaxies, the NGC 5866 group or M102 group of galaxies.
This galaxy is well visible in a 4-inch telescope as a considerably bright elliptical or spindle-shaped nebulous object with a brighter core, notable even in smaller instruments; several faint stars are visible around it.
www.seds.org /messier/m/ngc5866.html   (1004 words)

  
 NGC 524, Lenticular Galaxy; Supernova 2000cx   (Site not responding. Last check: 2007-09-07)
Lenticular); this is the first time that a SN 1991T-like type-Ia object has been seen in such an early-type galaxy, in a region devoid of obvious dust and massive stars.
This face-on lenticular galaxy is in the constellation of Pisces.
A rough distance estimate for this galaxy is 130 million light years, and at that distance, the diameter would be 105,000 light years.
www.kopernik.org /images/archive/n524.htm   (216 words)

  
 APOD: 2002 April 8 - NGC 2787: A Barred Lenticular Galaxy
Explanation: Lenticular galaxies aren't supposed to be photogenic.
elliptical galaxies, they are usually short on dust, gas, and pretty spiral arms.
lenticular galaxies formed, and what happens in their centers.
antwrp.gsfc.nasa.gov /apod/ap020408.html   (136 words)

  
 An Atlas of The Universe
Our galaxy is a loose spiral disc of two hundred billion stars rotating around a compact centre.
The Milky Way is surrounded by several dwarf galaxies slowly orbiting it in periods of billions of years.
The distribution of galaxies in the universe is far from regular.
www.atlasoftheuniverse.com   (497 words)

  
 Lenticular (S0) Galaxies
The icon shows the M102 candidate NGC 5866, the Spindle Galaxy.
The lenticular galaxies are disk galaxies without any conspicuous structure in their disks.
From their appearance, and also their stellar contents (e.g., spectral type), they look more like ellipticals rather than spirals, and have often been misclassified due to this fact.
www.seds.org /messier/lenticul.html   (105 words)

  
 Messier Objects By Type
Thanks to H. Teoh who arranged the Messier objects list by object type: nebulae, clusters, galaxies, and other kinds of objects not under any major category.
M102 may be (!) the Spindle Galaxy NGC 5866
M87: Virgo A, the central galaxy in the Virgo cluster
www.seds.org /messier/objects.html   (194 words)

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