... Then, this inbound visitor (C/2013 A1) to the inner solar system, discovered in January 2013 by Robert McNaught at Australia's Siding Spring Observatory, will pass within 132,000 kilometers of the Red Planet. ... The fabulous field of view includes , the Small Magellanic Cloud and globular star clusters 47 Tucanae (right) and NGC 362 (upper left). ... 2013 2014 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... NGC 346 in the Small Magellanic Cloud . The Small Cloud of Magellan . ...

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• Comet Garradd and Messier 15
• Comet Lovejoy before a Globular Star Cluster
• M4: The Closest Known Globular Cluster

... August 15, 1998 . The Perseus Cluster of Galaxies . ... Each of the fuzzy blobs in the above picture is a galaxy, together making up the Perseus Cluster, one of the closest clusters of galaxies . We view the cluster through the foreground of faint stars in our own Milky Way Galaxy . ... The Perseus Cluster of Galaxies is part of the Pisces-Perseus supercluster of galaxies , which spans over 15 degrees and contains over 1000 galaxies. ... About APOD > . ... NASA Technical Rep.: ...

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• APOD: 2003 August 4 - In the Center of the Virgo Cluster
• APOD: 2012 August 3 - Messier 5
• APOD: 2014 September 4 - Cloud, Clusters and Comet Siding Spring

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Image credit:ESO/J.Emerson/VISTA. ... However others are less pessimistic and it has even been claimed that the mysterious ?Wow! signal? received in 1977 originated from the direction M55.б? Sadly, this still unexplained pulse of radio energy originated from a location rather to the northwest of M55 so I doubt if the source was this cluster (if indeed the signal was genuinely of extraterrestrial origin). ... Mysterious Wow! ...

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• Omega Centauri: globular cluster of 300,000 stars | Astronotes
• Our Galaxy | Astronotes - Part 2
• Hubble Space Telescope sees into Omega Centauri's future | Astronotes

home publications > mercury . ... Big Clusters, Tiny Galaxies . ... Astronomers struggle to understand why giant star clusters form in the tiniest of galaxies . ... These clusters are probably young versions of globular clusters, but they are commonly called super star clusters. Seven dwarf galaxies within 16 million light-years have formed super star clusters, with one of these galaxies, NGC 1569, possessing two young clusters. ... Super star clusters have a lot to tell us about star formation. ...

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• ASP: Contents, July/August 1999
• ASP: Contents, July/August 1994
• ASP: Contents, July/August 2004

THE SUBSYSTEMS OF THE MILKY WAY HALO. ... A catalogue of homogeneous fundamental astrophysical parameters for 145 globular clusters is composed on the base of the data of compilative catalogue by Harris (1997) and from another literature. ... In addition, it has large rotation velocity ( V rot =77?33 km/s), appreciable radial and vertical metallicity gradients equal by value, and has the oldest average age (subsystem of the old halo). ... Characteristic parameter of globular cluster subsystems. ...

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• Population of Galactic globular clusters, figures

... I am an astrophysicist studying stellar evolution and stellar populations through the use of computational models. ... The origins of abundance variations in globular clusters . Galaxy formation as traced by globular clusters . ... The ACS Survey of Galactic Globular Clusters . ... Globular Clusters in the Outer Galactic Halo: New Hubble Space Telescope/Advanced Camera for Surveys Imaging of Six Globular Clusters and the Galactic Globular Cluster Age-metallicity Relation . ... 2011 Aaron Dotter | ...

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• High Redshift Cluster Projects
• HST this week: 230
• HST this week: 229

... 2000 August 4 . M15: Dense Globular Star Cluster . ... In fact, only 40,000 light-years away in the constellation Pegasus, M15 is one of the most densely packed globular star clusters in our Milky Way Galaxy. This stunning Hubble Space Telescope image of M15 shows thousands of individual stars across the central 10 or so light-years of the cluster, also cataloged as NGC 7078. ... Globular star clusters harbor from a hundred thousand up to a million stars and roam the Milky Way halo. ...

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• Arcetri Star-Formation Group Publications
• LEONARDO TESTI - VIEWGRAPHS/PROCEEDINGS
• FIRPO Publications

... ISC Kosmotras . ... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. ... Launch of Dnepr LV carrying Sich-2 and BPA-2 (State Space Agency of Ukraine), Nigeriasat-2 and Nigeriasat-X (SSTL, Great Britain), RASAT (Space Research Technology Institute of Turkey (TUBITAK UZAY)), EDUSAT (La Sapienza University of Rome, Italy), and Aprizesat-5 and Aprizesat-6 (SpaceQuest, USA) payloads is scheduled for 17 August 2011, at 10:12:20 decreed Moscow time (7:12:20 UTC). ...

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• Dnepr Cluster Launch Preparations Nearing Completion at Baikonur
• New launch campaign started at Baikonur
• Launch Campaign of DubaiSat-2 Cluster Mission

Valentina Klochkova . Klochkova V.G. 21 Jan 08:14:27 GMT+0300 2016

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• Laboratory for the Stellar Magnetism Study of SAO of the RAS - Physics and
• Publications

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

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• SAI OCL Catalog Publications
• SAI OCL Catalog Structure
• SAI OCL Catalog Description

... Resolved Stellar Populations Globular Clusters . Galaxies are made of stars, gas and the illusive dark matter. ... Star clusters are the simplest form of the stellar population. ... Old globular clusters are easily observed at great distances and can be used as probes of the early stages of star formation history in galaxies where individual stars cannot be resolved. My research interests are centered on the studies of resolved stellar populations and (old) star clusters in nearby galaxies. ...

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• Anja Feldmeier-Krause
• A close look at the globular star cluster 47 Tucanae | ESO
• A close look at the globular star cluster NGC 6752 | ESO

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... RV Tau Variables in Globular Clusters - clues on their nature? ... This is a report of the detailed elemental abundances of RV Tau variables that reside in globular clusters, and how they compare with RV Tau variables in the field. ...

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• ATNF Colloquium
• Blind HI Survey in the Centaurus and Fornax Clusters
• Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or

... Submitted by Al Takeda on 10/12/2010 13:23:34 . P103/Comet Hartley 2 and the Double Cluster . P103/Comet Hartley 2 and the Double Cluster in Perseus. The comet brightened to approximately 6th magnitude as it passed the open clusters NGC 869 and NGC 884. The clusters are separated by a few hundred light years (ly) and are 7,000 ly away. ... 8 October 2010. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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• Amateur Telescope Makers of Boston ATMoB Observing Awards Program

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

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• Dark Matter in the Universe
• The Galaxy Gallery Page IX: Clusters of Galaxies

A Canadian and American team of Astronomers have used the 305-m wide Arecibo radio dish, the world's largest and most sensitive radio telescope, to uncover a dozen new super-fast-spinning pulsars. The team directed their search for these rare and exotic stars by pointing the Arecibo radio telescope towards massive star clusters, called Globular Clusters, orbiting our Milky Way galaxy. ... One of the most exotic residents in the Globular cluster system are the millisecond pulsars. ...

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• Catalogs and Publications
• The Pleiades
• Arecibo Observatory Publications

Our early publications since 1990 till 1995 year . ... 7.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu.Kniazev, J.A. Stepanian, 1990, Nature, 343, 238, Unusual low heavy-element abundance found in the blue compact galaxy SBS 0335-052 8.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu,Kniazev, J.A.Stepanian, 1990, Physical Processes in Fragmentation and Star Formation, 1990, Kluwer Academic Publisher, p.235-240. ... New blue compact dwarf galaxies with low heavy-element abundances. ... 1993. ...

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• Cluster Analysis
• A 1400-MHz Survey of 1478 Abell Clusters of Galaxies
• A VLA Survey of Rich Clusters of Galaxies II

... Last updated 10 October 2014 . ... Dr. Alasdair Dougal Mackey . ... Australian National University . ... 2004 - Ph.D., Institute of Astronomy and Trinity College, University of Cambridge . ... 2003-2006 - PPARC Postdoctoral Fellow, Institute of Astronomy, University of Cambridge . ... 2005 - Lecturer for Globular clusters and globular cluster systems (8 lectures), a course for first and second year Ph.D. б?б?б?б?б?б?б?б?б?б?б?б?б? students, Institute of Astronomy, University of Cambridge . ...

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• GSAOI Super Star Clusters Science Page
• GSAOI Globular Cluster Science Page
• GSAOI Open Cluster Science Page

... The package includes a new ``hybrid'' symplectic integrator capable of handling close encounters, described at the conference: The Impact of Modern Dynamics in Astronomy , Namur, Belgium (Chambers 1998). ... NRC Research Associate, NASA/Ames Research Center , Moffett Field CA, USA, planetary accretion, formation of the asteroid belt and extra-solar planets. ... G.Laughlin and J.E.Chambers (2002) Astronomical Journal, , in press. ... American Astron. ... Home page of planet hunters Marcy and Butler ....

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• Armagh Observatory
• IAJ: News Views

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... A tale of two clusters . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• A star cluster hides star clusters | Astronomy.com
• Globular clusters tell tale of star formation | Astronomy.com
• How close does Pluto's orbit come to Neptune? | Astronomy.com

Title: A Dark-Matter Spike at the Galactic Center? Authors: Piero Ullio , HongSheng Zhao , Marc Kamionkowski . ... Title: The Galaxy Environment of Quasars in the Clowes-Campusano Large Quasar Group at z~1.3 . ... Title: The Galaxy Environment of a Quasar at z=1.226: A Possible Cluster Merger . ... 16 matches for the search pattern galaxy environment . The URL for this page is: http://xxx.itep.ru/find/astro-ph/1/galaxy+environment/0/1/0/past,all/0/0 www-admin@xxx.lanl.gov ...

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• astro-ph authors/title/abstract search for 'galaxy cluster' (skipped 200) all
• astro-ph authors/title/abstract search for 'galaxy merging' all years