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Topic: Wild Duck Cluster


In the News (Wed 21 Aug 19)

  
  Sea and Sky's Astronomy Resources: Messier Objects M11 - M20
Globular cluster M12, in the constellation Ophiuchus, is nearly a twin of M10.
This cluster is 40,000 light years distant, and with a visual magnitude of 6.2, is a beautiful sight in binoculars and telescopes alike.
The stars in the cluster formed from the gasses in this nebula, and new stars are still in the process of forming.
www.seasky.org /astronomy/astronomy_messier_11to20.html   (848 words)

  
 open cluster
An older name for such groupings is galactic clusters because they are found mostly in the disk, and especially the spiral arms, of this and other disk galaxies.
The stars in open clusters have formed together within the same interstellar cloud; indeed, in many diffuse nebulae, the birth of new open clusters can be seen taking place.
As open clusters drift along, some of their members escape due to velocity changes in mutual closer encounters, tidal forces in the galactic gravitational field, and encounters with field stars and interstellar clouds passing their way.
www.daviddarling.info /encyclopedia/O/opencluster.html   (246 words)

  
 clusters
The true number of open clusters in our galaxy may indeed be much higher, since their location in the plane of the galaxy means that many of them are obscured from our view by interstellar dust and stars along the galactic plane.
It is also reasonable to assume that all of the stars in a cluster formed at about the same time, since the process of the formation of the stars in the cluster requires much less time than the overall lifespan of the cluster as a whole.
Globular clusters are mostly spherical, with up to a million stars, all very old and they seem to be doing their own thing as they move around the galaxy’s center without regard to the motion of the spiral arms.
junior.apk.net /~arstar50/clusters.html   (1770 words)

  
 Open cluster - Wikipedia, the free encyclopedia
As astrometry became more accurate, cluster stars were found to share a common proper motion through space, while spectroscopic measurements revealed common radial velocities, thus showing that the clusters consist of stars born at the same time and bound together as a group.
While most clusters become dispersed before a large proportion of their members have reached the white dwarf stage, the number of white dwarfs in open clusters is still generally much lower than would be expected, given the age of the cluster and the expected initial mass distribution of the stars.
Because the stars in an open cluster are all at roughly the same distance from Earth, and were born at roughly the same time from the same raw material, the differences in apparent brightness among cluster members is due only to their mass.
en.wikipedia.org /wiki/Open_cluster   (3222 words)

  
 M11
The Wild Duck Cluster is possibly the most compact "open" star cluster that can been observed in amateur telescopes.
The estimated age of the cluster ranges from 220 million to 500 million years.
The Wild Duck can be seen in binoculars and is easily observed with modest amateur telescopes.
www.waid-observatory.com /M11-2003-09-14.html   (148 words)

  
 M11, Open Cluster
M11 is one of the most condensed open clusters in the sky.
Located in the constellation of Scutum, it is sometimes mistaken for a loose globular cluster.
M11 is also called the "Wild Duck Cluster" because of it's resemblance to a flight of wild ducks when viewed in a telescope.
www.astropix.com /HTML/D_SUM_S/M11.HTM   (160 words)

  
 [No title]   (Site not responding. Last check: 2007-09-11)
M11, an open cluster in the constellation Scutum, is an unusually dense example of its type.
The name "wild duck" was given this cluster because in some views, the lower left edge looks like a V-shaped group of ducks in flight.
This cluster is about 6200 light years distant from Earth and with an estimated population of 48,000 stars is more populous than some globular clusters.
www.astronomy-images.com /images/Clusters/m11.htm   (103 words)

  
 M11
The Wild Duck Cluster was first recorded in 1681 by Gottfried Kirch, and 83 years later entered into Messier's catalog as Number 11 of faint comet-like objects.
It is not the easiest cluster to find, lurking 6000 light years away in the insignificant constellation Scutum.
A "rich open cluster" containing almost 3000 stars, of which about 500 are bright enough to dazzel through a backyard telescope.
www.stardoctor.org /M11.html   (195 words)

  
 Cosmic Voyage-The Online Resource for Amateur Astronomers   (Site not responding. Last check: 2007-09-11)
M11, the Wild Duck Cluster, is an amazing sight in almost any aperture.
The cluster presents a patterned appearance with angular sections of closely spaced stars connected by narrow corridors of stars.
Perhaps this is where the nickname, Wild Duck, originated.
members.aol.com /billferris/m11.html   (191 words)

  
 [No title]
Being in the plane of the milky way, the cluster is set among a stunning backdrop and is a sight not to be missed this month.
M11 is one of the most beautiful open clusters in the sky, commonly observed and photographed and I'm looking forward to seeing many observing reports, sketches and images of this object taken by forum members.
A compact globular cluster, NGC6723, is found nearby though is catalogued in the constellation Sagittarius and is 30,000 light years distant, far beyond the dust cloud of Corona Australis.
www.iceinspace.com.au /index.php?id=69,226,1,0,1,0   (1878 words)

  
 M11
Messier object M11 is a open cluster which is located in the constellation Scutum.
This Open Cluster has an apparent angular size of 14 and a visual brightness of 6.3.
It is commonly known as the Wild Duck Cluster.
www.absoluteastronomy.com /messier_objects/m11.htm   (76 words)

  
 M11: Wild Duck Cluster
Was discovered by the German astronomer Gottfried Kirch in 1681, and catalogued by Charles Messier in 1764, who described it as a "cluster of a great number of small stars, near the star K of Antinous [Scutum] which one can only see in a good telescope".
It is one of the richest, and most condensed open clusters containing about 2,900 stars.
A favourite of many observers, it is called the Wild Duck cluster because of the 'V' pattern of stars, which resemble a flock of ducks in flight.
www.r-clarke.org.uk /messier/m11.htm   (88 words)

  
 Messier 11 - The Wild Duck Cluster   (Site not responding. Last check: 2007-09-11)
The German astronomer Gottfried Kirch of the Berlin observatory discovered M11 in 1681, although it wasn't until 1733 that it was resolved into indivual stars - quite amazing for an open cluster.
The Wild Duck cluster is a fine sight in amateur instuments (mag 6.3) and is named so because its triangular shape resembles a flock of ducks flying in formation.
It is thought to be 250 million years old and lies in Scutum.
www.btinternet.com /~hubbletelescope/m11.shtml   (74 words)

  
 Wild Duck Cluster - Wikipedia, the free encyclopedia
The Wild Duck Cluster (also known as Messier 11, or NGC 6705) is an open cluster in the constellation Scutum.
The Wild Duck Cluster is one of the richest and most compact of the known open clusters, containing about 2900 stars.
Its name derives from the brighter stars forming a triangle which could represent a flying flock of ducks.
en.wikipedia.org /wiki/Wild_Duck_Cluster   (126 words)

  
 M11, Wild Duck Cluster   (Site not responding. Last check: 2007-09-11)
An observer living on a planet near the center of the cluster would be able to see several hundred stars of the first magnitude in contrast to just several from Earth's location.
It is a swarm of easily resolved stars dominated by a red giant, several magnitudes brighter, right in the center.
Galactic clusters are distinguished from the globulars by their location in or near the galactic plane as opposed to populating the spherical halo surrounding the galaxy.
schmidling.com /m11.htm   (165 words)

  
 M11 Star Cluster   (Site not responding. Last check: 2007-09-11)
M11 ia a bright magnitude 5.8 dense open cluster that beautifully accents the swarms of stars that populate the Milky Way in the constellation Scutum.
The cluster is about 500 million years old, and the brightest members are giant stars with luminosities more than 100 times that of our sun.
The cluster got its name from Admiral Smyth, who thought the main group of stars formed a V-shape and resembled a flight of wild ducks.
members.cox.net /sidleach/m11.htm   (232 words)

  
 M11 - The Wild Duck Cluster   (Site not responding. Last check: 2007-09-11)
M11 (NGC6705) - The Wild Duck Cluster is an Open Cluster in the constellation Scutum.
It contains an estimated 2900 stars and is one of the most compact clusters of this type.
The above image is an LRGB composite of 16, 10-second monochrome exposures obtained on 8 July 2000 combined with red (12x10sec), green (16x10sec), and blue (29x10sec) exposures obtained on 2 July 2000.
www.astroimages.org /ccd/m11.html   (100 words)

  
 Open Clusters
M24 is a very dense open cluster in Sagittarius, facing the center of the galaxy.
M46 is an open cluster in Canis Major.
M47 is an open cluster in Canis Major.
www.math.wustl.edu /~bohanon/astro/openclusters.html   (88 words)

  
 (IAAC) Obj: M11 (Wild Duck Cluster) - Inst: 7x50 binos
The cluster is found as a brightish smudge about 1/4 of a field of view (1o) WSW of a pretty isoceles triangle of stars mags 5, 6, and 7.
A steady hand in these conditions even shows the irregular shape of the cluster, with "legs" of unresolved stars protruding to the W and NE of the center of the hazy patch.
The famous, bright central star of the cluster (about mag 8), was seen intermittently with both averted and direct vision, in the near-West of center.
www.visualdeepsky.org /netastrocatalog/msg00216.html   (187 words)

  
 Wild Duck Cluster (M11, NGC 6705)
One of the richest and most compact known open clusters, with an estimated 2,900 stars, about 500 of which are brighter than magnitude 14.
The Wild Duck Cluster lies in the constellation Scutum.
It was discovered in 1681 by the German astronomer Gottfried Kirch of the Berlin Observatory and is believed to be about 250 million years old.
www.daviddarling.info /encyclopedia/W/Wild_Duck_Cluster.html   (148 words)

  
 APOD: 2003 January 22 - M11: The Wild Duck Cluster   (Site not responding. Last check: 2007-09-11)
this cluster all formed together about 250 million years ago.
clusters, also called galactic clusters, contain fewer and younger stars than globular clusters.
open clusters are generally confined to the plane of our Galaxy.
antwrp.gsfc.nasa.gov /apod/ap030122.html   (97 words)

  
 Deepsky observing report M16, M17, M18, M24, M22, M8, M11, IC 4756, NGC 6633, NGC 253, NGC 247, NGC 188, NGC 891
This beautiful object, a combination of an emission nebula (NGC 6618) and open cluster (also NGC 6618), was discovered by Chesaux in the spring of 1746, before it was rediscovered by Messier in June of the same year.
M18 is a galactic cluster of magnitude 6.9.
The cluster is 15′; in diameter and contains 120 stars, but in an 8-inch telescope you can only see about 10 to 12 stars of the 12th and 13th magnitude.
www.backyard-astro.com /deepsky/2003_09_26/ITT.html   (2672 words)

  
 Wild Duck Cluster   (Site not responding. Last check: 2007-09-11)
Cluster because someone thought it resembled a flight of wild ducks.
Most of M11's stars are turquoise in color,
indicating this cluster's relaltively young age of about 500 million years.
www.darkskyimages.com /m11.htm   (87 words)

  
 Open star cluster M11   (Site not responding. Last check: 2007-09-11)
The bright open cluster Messier 11 (NGC 6705) in Scutum, the "Wild Duck" cluster, shown from a 30-second red-light exposure (through clouds) with a Tektronix 2048x2048 CCD at the prime focus of the 4-meter Mayall telescope of Kitt Peak National Observatory.
North is at the top and east to the left, for direct comparison with a chart or eyepiece view.
Even with this short exposure, some of the brighter stars saturated the CCD strongly enough for some of the charge to bleed along columns of the chip, accounting for the vertical bright streaks from their centers.
www.astr.ua.edu /gifimages/m11r.html   (166 words)

  
 M 11
The age of the Wild Duck cluster has been estimated to amount 220 million years, as its brightest and hottest main sequence stars are of spectral type B8 (according to the Sky Atlas 2000), but also double that value (Burnham gives 500 million years).
The higher value is supported by the fact that this cluster also contains many yellow and red giants of absolute magnitude around -1.0.
Messier observed M11 May 30th 1764 and logged "Cluster of a large number of faint stars,near the K in Antinous (Aguila), which may be seen only with good instruments.
www.messiermarathon.com /new_page_17.htm   (222 words)

  
 The Wild Duck Cluster -- M11   (Site not responding. Last check: 2007-09-11)
Many clusters would be lost in such star studded glory, but M11 stands out clearly.
Burnham's describes M11 as an "Exceptionally fine galactic star cluster, lying on the north edge of the prominent Scutum Star Cloud, and one of the outstanding objects of its type for telescopes of moderate aperture."
In smaller instruments or binoculars M11 appears as a hazy spot as bright as a 6th magnitude star and can even be glimpsed as such to the naked eye from a dark location.
www.skyhound.com /sh/archive/jul/M_11.html   (234 words)

  
 Above the clouds » Wild duck cluster (M11)   (Site not responding. Last check: 2007-09-11)
Above the clouds » Wild duck cluster (M11)
Well,I have been having some problems getting my blog to download images.It all started at around 5am this morning.I must say,as time wore on I began to consider changing blogs providers.This thought was also aided by a large amount of coffee.I am after all, enjoying some time off from work.
The higher value is supported by the fact that this cluster also contains many yellow and red giants of absolute magnitude around -1.0.The cluster as a whole is a mag 6.3.
bongo69.vela.net /2006/06/12/wild-duck-cluster-m11   (143 words)

  
 NASA - M11: The Wild Duck Cluster
The above pictured open cluster, M11, contains thousands of stars and is just over five thousand light years distant.
The stars in this cluster all formed together about 250 million years ago.
Open clusters, also called galactic clusters, contain fewer and younger stars than globular clusters.
www.nasa.gov /multimedia/imagegallery/image_feature_003.html   (112 words)

  
 M11 (Wild Duck Cluster)
The Wild Duck Cluster is a fairly interesting Open Cluster (as opposed to a Globular Cluster) in the constellation of Scutum.
It makes for a very nice view through the eyepiece of a decent telescope, where, apparently, the stars take on the "V Shape" of a flock of flying ducks.
I was careful in the aquisition and processing chain not to clip (saturate) any of the stars in order to preserve their color.
www.saratogaskies.com /image.pl?i=61   (117 words)

  
 NGC 6705, Messier 11, M11   (Site not responding. Last check: 2007-09-11)
Clusters of bright blue stars like M11 are found scattered among the spiral arms of the Milky Way and other galaxies like it.
They are a clear sign that star formation is active, because such clusters are usually very young and short lived.
For details of photographic exposure, search technical table by AAT reference number.
www.aao.gov.au /images/captions/aat090.html   (176 words)

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