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Topic: Globular Cluster M9

	Globular Cluster M9 - Free net encyclopedia (Site not responding. Last check: 2007-10-17)
		Globular Cluster M9 (also known as Messier Object 9 or NGC 6333) is a globular cluster in the constellation Ophiuchus.
		M9 is one of the nearer globular clusters to the center of the Milky Way Galaxy with a distance of around 5,500 light years.
		Nearby, at about 80' to the northeast of M9 is the dimmer globular cluster NGC 6356, while at about 80' to the southeast is the globular NGC 6342.
	www.netipedia.com /index.php/NGC_6333 (183 words)

	Messier 9 - Wikipedia, the free encyclopedia
		Messier 9 (also known as M9, Globular Cluster M9 or NGC 6333) is a globular cluster in the constellation Ophiuchus.
		M9 is one of the nearer globular clusters to the center of the Milky Way Galaxy with a distance of around 5,500 light years.
		Nearby, at about 80' to the northeast of M9 is the dimmer globular cluster NGC 6356, while at about 80' to the southeast is the globular NGC 6342.
	en.wikipedia.org /wiki/Globular_Cluster_M9 (166 words)

	Globular Star Clusters - Information and Observations (Site not responding. Last check: 2007-10-17)
		Globular clusters are the senior citizens of our galaxy - they contain suns at least 12 billion years old.
		Summer nights are the best time to start hunting for globular clusters, almost one third of them are to be found in the summer constellation of Sagittarius.
		For your first observation of a globular cluster choose M13, the brightest cluster visible from the northern sky, teetering on the edge of naked-eye visibility and appearing as a small, hazy glow in binoculars.
	www.nightskyinfo.com /globular_clusters (661 words)

	Star Clusters - Globular
		Globular clusters are not formed within the galaxy structure, but usually large numbers of them form a halo around the main galactic structure.
		Globular clusters usually require a larger telescope and higher magnification to observe to best effect, although the larger and closer ones can be spectacular in small instruments.
		Stellar concentration is average for a globular cluster and it is one of the metal-richest globulars.
	www.paulandliz.org /Star_Clusters/Globulars.htm (1815 words)

	Sea and Sky's Astronomy Resources: Messier Objects M1 - M10
		M4 is a globular cluster that lies in the constellation of Scorpius.
		It is believed to be one of the oldest of the globular clusters, at an age of about 13 billion years.
		This cluster is composed mainly of blue and white stars with the brightest being a yellow or orange giant.
	www.seasky.org /astronomy/astronomy_messier_1to10.html (813 words)

	M9
		Messier object M9 is a globular cluster which is located in the constellation Ophiuchus.
		This Globular Cluster has an apparent angular size of 9.3 and a visual brightness of 7.7.
		M9 is unnamed and has an NGC catalog number of NGC 6333.
	www.absoluteastronomy.com /messier_objects/m9.htm (70 words)

	Globular Star Clusters
		Globular clusters are gravitationally bound concentrations of approximately ten thousand to one million stars, spread over a volume of several tens to about 200 light years in diameter.
		Globular clusters typically contain a number of variable stars, in particular RR Lyrae stars which were once called "Cluster Variables" because of their abundance in globulars.
		It is perhaps a bit surprising that almost all globular clusters seem to be of about the same age; there seems to be a physical reason that they all formed in a short period of time in the history of the universe, and this period was apparently long ago when the galaxies were young.
	www.seds.org /messier/glob.html (2112 words)

	Globular Clusters
		The LMC is known to have (at least) 17 globular clusters.
		Not surprisingly, the Messier globular clusters tend to be the brightest ones which can be seen from northern latitudes.
		According to the figures in Deep Sky 2.0, this is the sixth brightest globular cluster in the sky.
	home.insightbb.com /~lasweb/lessons/globular.htm (1554 words)

	Messier 9 (Site not responding. Last check: 2007-10-17)
		M9 is a globular cluster of magnitude 7.7.
		This cluster is found in the constellation Ophiuchus.
		A small telescope of say 4 inches aperture is required to see it clearly, although 10x50 binoculars can be used in clear conditions.
	www.btinternet.com /~hubbletelescope/m9.shtml (61 words)

	Gallery - M 9 - RedOrbit
		M9 is one of the nearer globular clusters to the nucleus of our Galaxy, with a computed distance of 5500 light-years from the Galactic Center (Burnham gives 7500, a slightly too high value).
		To the north and west, its light is significantly dimmed by interstellar dust, as it lies at the edge of a patch of dark nebula (Barnard 64); its light is probably weakened by at least one magnitude (a factor of about 2.5).
		M9 is found best from the 2.43-mag star Sabik (35 Eta Ophiuchi, spectrum A2 V); M9 is about 3 deg SE (2.1deg E and 2.8deg S).
	www.redorbit.com /images/gallery/messier_objects/m_9/104/102/index.html (520 words)

	Globular Clusters
		Globular clusters are spherical concentrations of stars typically 100 light years across and containing thousands of stars.
		Globular clusters are very old, at least 10 billion years old and were presumably formed when the galaxy was still forming.
		Column 8: Approximate angular diameter of the globular cluster in arcminutes.
	www.atlasoftheuniverse.com /globular.html (302 words)

	Infrared Universe (Site not responding. Last check: 2007-10-17)
		Globular clusters are extremely dense, gravitationally bound, spherical star clusters that are associated with massive galaxies.
		The largest globular clusters (e.g., Omega Centauri) are in fact small galaxies unto themselves, undergoing tidal stripping from their parent galaxy.
		Globular cluster "47 Tuc" (NGC 104) as imaged in the near-infrared.
	spider.ipac.caltech.edu /staff/jarrett/galaxies/globulars.html (158 words)

	Globular Clusters in M33 (Site not responding. Last check: 2007-10-17)
		This is in part a reflection of the smaller size of the globular population and the difficulty in identifying suitable candidates in M33.
		Eight of the twelve objects in Table 1 are probably "true" globular clusters, while the other four are significantly bluer and resemble similar objects in the Large Magellenic Cloud.
		Most of the brighter globulars are concentrated in the northern portion of the galaxy, within 10 arcminutes of the giant HII region NGC 604.
	www.angelfire.com /id/jsredshift/gcm33.htm (1080 words)

	M-9, globular cluster
		M9 is evidently one of the nearer globular clusters to the nucleus of our Galaxy, with a computed distance of about 7,500 light years from the Galactic Center.
		Heavy absorption to the north and west suggests that the cluster may be dimmed by at least a magnitude.
		A smaller globular cluster, NGC 6342, lies about 1.2 Degrees to the South East, while another, NGC 6356, will be found at approximately the same distance to the North East.
	www.kopernik.org /images/archive/m9.htm (297 words)

	M 9
		M9 is one of the nearer globular clusters to the center of our Galaxy, with a computed distance of 5500 light-years from the Galactic Center.
		To the north and west, its light is significantly dimmed by interstellar dust, as it lies at the edge of a patch of dark nebula.
		M9 is receding from us at the very high velocity of 224 km/sec, and 13 variables have been found in this cluster.
	www.messiermarathon.com /new_page_15.htm (139 words)

	GLOBULAR CLUSTERS - Celestial Objects included in 'Eyepiece' Program, by S. Waldee
		In a galaxy remarkable for its multitudes of galaxies, this globular cluster may be readily discerned as a fuzzy ball of almost-resolved stars with a central sharp nucleus, surrounded by an indistinct disk consisting of faint unresolved outer stars.
		John Sanford description: "M5 is one of the premier globulars in the sky, and it is easily found near the star 5 Serpentis, only 22 arcminutes away." It is one of the supreme deep sky sights to be enjoyed, even in a very small telescope: and is visible in binoculars as a small, fuzzy 'speck'.
		Globular clusters are far from similar to one another.
	home.earthlink.net /~8-h-haggis/globulars/eyepiece-gcs.htm (4645 words)

	Age of Universe
		By dating the stars in globular clusters and the least massive Red Giants elsewhere in the universe, we can set a lower limit to the age of the universe.
		The fact that the stars in globular clusters are all old leads to a very interesting property.
		In globular clusters, all stars greater than 0.9 solar masses have therefore exhausted the hydrogen fuel in their core and have become red giants or stars in an even later stage of life like horizontal branch stars, neutron stars or white dwarfs.
	www.evolutionpages.com /age_universe_astro.htm (3303 words)

	Globulars
		An interesting fact about globular clusters is that, regardless of the number of stars they contain, the average distance between individual stars is between 3/4 and 1-1/2 light years.
		And because most of the stars in a globular are of the same magnitude, they would appear as grains of sugar sprinkled onto a fl piece of cloth or paper.
		Most of the showplace globulars that amateur astronomers observe occupy positions in the sky that allows them to be seen between late Spring and late Fall.
	www.rocklandastronomy.com /articles/globulars.html (642 words)

	NCKAS Globular Clusters
		This "Intergalactic Wanderer", once thought to be the most distant Globular Cluster, is a cool object to hunt down, and very elusive in any light polluted sites.
		Globular cluster, bright, very large, round, gradually very much brighter middle, well resolved, stars of magnitude 10 to 15; = M10.
		Dreyer description: Very remarkable!, globular cluster, very bright, very large, round, very rich in stars, very much compressed, stars of magnitude 11 to 15;.
	www.nckas.org /globularclusters (997 words)

	APOD Search Results for "globular"
		Open clusters of stars are younger, contain few stars, and contain a much higher fraction of blue stars than do globular clusters of stars.
		Globular star clusters like M55 roam the halo of our Milky Way Galaxy as gravitationally bound populations of stars known to be much older than stellar groups found in the galactic disk.
		Stars in the large cluster are estimated to be 50 million years young, while stars in the compact cluster are younger still, with an age of about 4 million years.
	antwrp.gsfc.nasa.gov /cgi-bin/apod/apod_search?globular (10485 words)

	More M9
		More M9 This color CCD image was obtained by Tim Hunter and James McGaha with their 24-inch f/5 Newtonian telescope and Apogee AP-7 CCD camera at Grasslands Observatory near Tucson, Arizona.
		Martin Germano took this image of globular cluster M9 in June, 2002 with his 14.5" f/5 Newtonian, stopped to f/6(12").
		Globular cluster M9 as photographed by Jack Schmidling.
	www.obspm.fr /messier/more/m009_m2.html (194 words)

	M. W. Globulars
		The distant globular clusters Palomar 14 and Palomar 15
		Eridanus Cluster is a distant outer halo globular cluster found on a 60 minute Schmidt photographic plate obtained on Dec 11, 1976 taken with the ESO Schmidt telescope.
		HP1 might be a halo cluster crossing the bulge or belong to the low-metallicity tail of the bulge at a distance of 6.85 kpc from the Sun.
	home.ix.netcom.com /~bwilson2/barbarasweb/ListofGClusters.htm (2631 words)

	Globular cluster M9
		Globular cluster M9 Globular cluster M9 The bright globular cluster Messier 9 (NGC 6333) in Ophiuchus, 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.
		The image has been block-averaged to 512x512 for this presentation, which uses a logarithmic intensity transformation to preserve information across a wide dynamic range.
	www.astr.ua.edu /gifimages/m9r.html (86 words)

	Accurate Globular Cluster List
		New positions were measured for many of the globulars in the list, and all globular positions have been hand-checked against the DSS, CCD images made for the purpose, or both.
		In the case of very faint or small globulars (e.g., Terzan 2), the astrometry was performed using a 30cm SCT and reductions were relative to USNO A2.0.
		The goal in all cases was to centroid on the globular itself, rather than to estimate the center of the globular by eyeball.
	jeff.medkeff.com /astro/catalogs/glob.html (835 words)

	Objects - Globular Clusters
		Globular clusters have also been observed around other galaxies.
		The Hercules Cluster (M13) looks so good (and is so easy to find) that we rarely show any others when it is available, even though there are many more.
		29 of the Messier Objects are Globular Clusters.
	depts.clackamas.cc.or.us /haggart/WhatsUp/GlobularClusters.htm (213 words)

	M9 - Biocrawler (Site not responding. Last check: 2007-10-17)
		The globular cluster numbered by Charles Messier, see Messier 9
		This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title.
		You can find it there under the keyword M9 (http://en.wikipedia.org/wiki/M9)The list of previous authors is available here: version history (http://en.wikipedia.org/w/index.php?title=M9andaction=history).
	www.biocrawler.com /encyclopedia/M9 (189 words)

	My Logbook (Site not responding. Last check: 2007-10-17)
		The cluster formed a triangle with two other stars in the area and was visible in the finder scope.
		This cluster is almost on the same axis as M3, and I could easily find M3 and move back and forth to the area of NGC 5466 marking the stars between as I went.
		The cluster appeared to be rose shaped with a dim arc of 5 stars near the stem.
	user.mc.net /~klc/logbook.htm (11176 words)

	Hawaiian Astronomical Society - Ophiuchus
		A very rich cluster, one of the better ones in the sky, it is located in the rather barren central Opiuchus region located 9.6° E of Yed Posterior (Epsilon Ophiuchi).
		89k JPEG NGC6304 (Bennett 90) is one of a pair of globular clusters that lies on the southern most border of Ophiuchus with Scorpius, about 3° ENE of M62.Dreyer describes the cluster as bright (mag.
		82k JPEG NGC6293 (Bennett 89) is a globular cluster that lies 3.1° WSW of Theta Ophiuchi and 11° due south of Sabik (Eta Ophiuchi).
	www.hawastsoc.org /deepsky/oph (1776 words)

	Stargazer Online \|\| Messier Marathon
		M53 is a globular cluster is about 1° west of Diadem (Alpha Coma Berenices) and M64 is 1° northeast of 35 Coma Berenicis.
		Ten degrees to the southeast from M54 is the last globular cluster in Sagittarius, M55.
		M2 is the globular cluster than started Messier on his quest of creating a catalog of comet-like objects and can be found 9° to the south-southeast of Enif.
	www.richardbell.net /marathon.html (3249 words)

	More M9
		More M9 This color CCD image was obtained by Tim Hunter and James McGaha with their 24-inch f/5 Newtonian telescope and Apogee AP-7 CCD camera at Grasslands Observatory near Tucson, Arizona.
		Martin Germano took this image of globular cluster M9 in June, 2002 with his 14.5" f/5 Newtonian, stopped to f/6(12").
		Globular cluster M9 as photographed by Jack Schmidling.
	messier.obspm.fr /more/m009_m2.html (194 words)

	Summer Sky
		Sagittarius “The Archer” is located in the direction of the centre of The Milky Way, as such it is littered with numerous deep sky objects, unfortunately it never rises very high to UK observers and a clear dark southern horizon is essential for viewing.
		The globular cluster M5 can be found in Serpens Caput while M16 “The Eagle Nebula” can be found in Serpens Cauda.
		Cygnus contains the open clusters M29 and M39 that are both pleasing targets through binoculars, M39 being the brighter of the two (mag 4.6).
	www.donastro.freeserve.co.uk /summersky.htm (1011 words)

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