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Topic: Globular Cluster M19

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	Astronomy CD ROM I - The Globular Cluster M19
		M19 (NGC 6273), a globular cluster of our Milky Way Galaxy in the constellation of Ophiuchus, located about nine degrees above (north) of the galactic plane and slightly west of the line of sight from Earth to the galactic center, is seen in this Kitt Peak 0.9-m telescope image.
		M19 is a relatively close globular cluster to the center of the Milky Way, at a little more than 5,000 light years and is moving away from us at 146 kilometers/second.
		M19 is a rich, fairly dense globular cluster, and one of the most elongated.
	astroa.physics.metu.edu.tr /~umk/ccd_wshop_adelman/Astronom/SC/M19.HTM (249 words)

	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.
		This is a relatively bright globular cluster, and is easily identifiable with binoculars.
	www.seasky.org /astronomy/astronomy_messier_11to20.html (848 words)

	Globular Star Clusters - Information and Observations
		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)

	Messier Object 19
		M19 was one of Charles Messier's original discoveries, detected on June 5, 1764.
		M19 is easily found about 8 deg east of Antares in the Milky Way, and is visible as a small globular glow, with its ellipticity easily notable.
		A further globular cluster, NGC 6293, of mag 8.4 and 1.9' diameter is located 1.5 deg to the ESE, and another one, NGC 6284, of mag 9.5 and 1.5' diameter, 1.6 deg to the NNE.
	www.seds.org /messier/m/m019.html (435 words)

	Globular Cluster M19
		Explanation: M19 appears to be a typical globular cluster of stars - except for its shape.
		In fact, M19 is the most aspherical globular cluster of the approximately 160 known orbiting the
		The reason for the clusters' odd shape remains unknown, but might be related to the clusters' close (5000 light-year) proximity to the
	www.astronet.ru /db/xware/msg/1166673 (160 words)

	Globular Clusters
		Thus as we look toward the central regions of the galaxy in the summer many more globular clusters are apparent than in the winter when night skies direct our gaze away from the center toward the outer reaches of the Milky Way.
		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)

	Astronomy Online - Messier Objects
		M9 - a globular cluster in the constellation Ophiuchus.
		M12 - "Gumball Cluster" a globular cluster in the constellation Ophiuchus.
		M53 - a globular cluster in the constellation Coma Berenices.
	astronomyonline.org /Astrophotography/Messier_complete.asp (1478 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)

	M19
		Messier object M19 is a globular cluster which is located in the constellation Ophiuchus.
		This Globular Cluster has an apparent angular size of 13.5 and a visual brightness of 6.8.
		M19 is unnamed and has an NGC catalog number of NGC 6273.
	www.absoluteastronomy.com /messier_objects/m19.htm (70 words)

	Ophiuchus Constellation (Site not responding. Last check: 2007-10-09)
		M12 is a medium-sized globular cluster found in the pentagon of a constellation of Ophiuchus.
		M14 is a small sized globular cluster, easternmost in three globulars with Messier's number (M10, M12 and M14) in a pentagon of Ophiuchus.
		A tiny globular cluster of M107 is positioned at 2.6 degrees SSW of zeta Oph.
	www.wingmakers.co.nz /Ophiuchus.html (1687 words)

	Globulars
		Globular cluster M13 is the brightest globular cluster visible from northern temperate latitudes.
		The pinkish object to the upper left of the cluster's core is a gas cloud surrounding a dying star.
		Globular Cluster M3 is about 100,000 light years away in the constellation Canes Venatici.
	faculty.rmwc.edu /tmichalik/globulars.htm (1085 words)

	cyberSPACE :: Galactic Globular Clusters (Site not responding. Last check: 2007-10-09)
		Interpreting colour-magnitude diagrams for clusters in terms of a star's evolutionary history remains a central problem for astrophysics even 75 years after the first diagrams were constructed and their significance shown.
		In visual observation of a globular cluster, obviously if you are going to see any resolution at all, your telescope will have to show stars at least as faint as the brightest stars in the cluster.
		The cluster reported by Djorgovski as "Djorgovski 3" is identical with NGC 6540, which was previously considered to be an open cluster.
	members.cox.net /lenphilpot/globular_data-skiff-prn.html (3759 words)

	Globular Clusters in Ophiuchus
		The globular cluster NGC 6235 lies 2.7 degrees from NGC 6287.
		M19 is bright at magnitude 6.9 and a whopping size of 14 minutes.
		It is a very easy cluster to spot but probably over shadowed by the nearby globular M19.
	www.knoxvilleobservers.org /dsonline/summer/globular.html (688 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)

	APOD: 2000 July 19 - Globular Cluster M19 (Site not responding. Last check: 2007-10-09)
		globular cluster of the approximately 160 known orbiting the center of our Milky Way Galaxy.
		The reason for the clusters' odd shape remains unknown, but might be related to the clusters' close (5000 light-year) proximity to the Galactic Center.
		shape might be an illusion created by an unusual lane of dark absorbing dust on one side of the cluster.
	antwrp.gsfc.nasa.gov /apod/ap000719.html (147 words)

	Globulars (Site not responding. Last check: 2007-10-09)
		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)

	RedOrbit - Gallery - M 62 (Site not responding. Last check: 2007-10-09)
		M62 is one of the most irregular shaped globular clusters, as was first reported by Herschel.
		There are more intrinsic differences between these two globular clusters: M62 has the large number of 89 known variables (number of 1973 !), most of them of RR Lyrae type, while M19 has only 4.
		Moreover, contrary to M19, the core of M62 is extremely dense and has possibly undergone a core collapse somewhen in its history, similar to a number of other globulars including M15, M30, and M70.
	www.redorbit.com /images/gallery/messier_objects/m_62/104/49/index.html (394 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 M19 \| Velocidad Sedimentacion Globular (Site not responding. Last check: 2007-10-09)
		Endless research by us was done to find information on globular cluster motion and select the best web sites from all those available for you to visit.
		Being a part of the growth of electronic commerce tonantzintla globular clusters on-line merchants will increase their market share and profits Of course the best advantage that online abduct globular retailers have over traditional physical globular published by alvin johnson enterprises is that the cost of operations is considerably less.
		As the mushrooming of e-commerce continues minimo de la velocidad de sedimentacion globular business people reach new goals with the increased business The most obvious advantage that online globular star clusters businesses will maintain over store-front abduct globular organizations is that they can make changes when changes are demanded.
	eplj.info /globular-cluster-m19.htm (219 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)

	Astronomy CD ROM I - Star Cluster Images (Site not responding. Last check: 2007-10-09)
		The Globular Cluster 47 Tucanae in the Infrared
		The Globular Cluster Omega Centauri in the Infrared
		Globular Cluster NGC 1916 in the Large Magellanic Cloud
	astroa.physics.metu.edu.tr /~umk/ccd_wshop_adelman/Astronom/ISCL.HTM (120 words)

	M-19, globular cluster (Site not responding. Last check: 2007-10-09)
		M19 is one of the most oblate globulars.
		This is one of the globular clusters which appears to be embedded in the central hub of the Milky Way Galaxy.
		M19 shows a radial velocity of 60 miles per second in recession.
	www.kopernik.org /images/archive/m19.htm (181 words)

	GCSE Astronomy - Messier Objects
		Along with M5 and M13, it is one of the three brightest globulars in the Northern Hemisphere.
		One of the brightest galaxies in the Virgo Cluster, with a magnitude of 8.5.
		Majority opinion seems to be that it is a (sparsely-populated) globular cluster, without the bright core typical of such objects.
	members.tripod.com /~BDaugherty/gcseAstronomy/messier.html (1427 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.
		More globulars to try out: M3 and M5 are highly recommended by several sources.
	depts.clackamas.cc.or.us /haggart/WhatsUp/GlobularClusters.htm (213 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)

	M19: Globular Cluster
		He described it as a "Nebula without stars, on the parallel of Antares between Scorpius and the right foot of Ophiuchus: this nebula is round; one can see it very well with an ordinary telescope of 3.5-foot" [focal length].
		M19 is oblate, rather than spherical, as is usual for globular clusters.
		This is thought to be due to its proximity to the centre of our galaxy, The Milky Way, about 5,200 light years from the cluster.
	www.r-clarke.org.uk /messier/m19.htm (84 words)

	My Logbook (Site not responding. Last check: 2007-10-09)
		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)

	Messier 19 - Wikipedia, the free encyclopedia
		Messier 19 (also known as M19 or NGC 6273) is a globular cluster in the constellation Ophiuchus.
		M19 is the most oblate known globular cluster.
		It is at a distance of about 28,000 light-years from the Solar System, and quite near to the Galactic Center, only about 5,200 light-years away.
	en.wikipedia.org /wiki/Globular_Cluster_M19 (114 words)

	Constellation Report
		This globular appears as a smudge of light in binoculars.
		The brightest stars of M19 are about 14th magnitude requiring a fairly large aperture to resolve them individually.
		This deformation may be a result of the fact that M62 is one of the closest of Messier's globulars to the Galactic center (only about 6100 light years), our galaxy's strong gravitational tug may be altering its shape.
	www.utahskies.org /deepsky/constellations/ophiuchus.html (528 words)

	Constellation Mythology - Perseus the hero
		magnitude globular cluster near Antares, which can be seen in binoculars.
		M6 and M7 are beautiful open clusters that are located between the end of the tail of Scorpius and the “Teapot” in Sagittarius.
		M6 is the Butterfly Cluster, and M7 has no name but is an extremely large cluster, twice the diameter of the full Moon.
	www.fvastro.org /articles/scorpius.htm (517 words)

	More M19 (Site not responding. Last check: 2007-10-09)
		Michael Purcell's image of "elliptical globular" M19, taken on April 15, 1996 at 03:54 with his Meade 10-inch f/6.3 SC Telescope and a ST7 CCD camera, exposed 5 minutes.
		Martin Germano obtained this image of Globular Cluster M19, with his 14.5" f/5 Newtonian telescope, exposed 60 minutes on hypered Kodak Tech Pan 2415 film.
		The peculiar ellipticity of this Ophiuchus globular is evident.
	www.obspm.fr /messier/more/m019_m2.html (71 words)

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