... Editor's choices for the most educational Astronomy Pictures of the Day about clusters of galaxies: . APOD: 2006 March 21 - The Coma Cluster of Galaxies . ... APOD: 2005 November 22 - A Galactic Collision in Cluster Abell 1185 . ... A prominent example occurs on the left of the above image of the rich cluster of galaxies Abell 1185. ... Recent observations of Abell 1185 have found unusual globular clusters of stars that appear to belong only to the galaxy cluster and not to any individual galaxy. ...

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• APOD Index - Stars: Globular Clusters
• APOD Index - Stars: Open Clusters
• APOD Index - Galaxies: Clusters

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Galaxy Clusters . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... Catch a Star 2013 . Catch a Star 2011 . ... The star cluster, known as NGC 3293, would have been just a cloud of gas and dust itself about ten million years ago, but as stars began to form it became the bright group we see here. ...

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• Around the Cat's Paw Nebula | ESO
• The composition of a star that should not exist | ESO
• The hidden fires of the Flame Nebula* | ESO

Most of these images were obtained by Mike Bessell, Michelle Buxton, Hwankyung Sung, Ralph Sutherland and Bob Watson at SSO using a 2Kx2K Site CCD behind a Nikon or Hasselblad lens or directly on the 1m telescope. A few images are from the Hubble Space Telescope. Some of the M42 images were obtained with the KPNO 1m and ESO NTT telescope. One image is a mosaic of IRAS images. ... Details of the CCD imaging program at MSSSO. ... antenna.jpg (53KB) . ... ngc6744.jpg (59KB) . ...

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

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Star Atlas . ... stars . ... 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 . ... Astronomy for Kids . ... stars and star clusters . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email...

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• galaxy clusters | Astronomy.com
• star clusters | Astronomy.com
• open clusters | Astronomy.com

... Credit Copyright: Canada-France-Hawaii Telescope , J.-C. Cuillandre ( CFHT ), Coelum Explanation: Open clusters of stars can be near or far, young or old, and diffuse or compact. ... Bright blue stars frequently distinguish younger open clusters. ... NGC 2158 's bright blue stars have self-destructed , leaving cluster light to be dominated by older and yellower star s. Both clusters are visible toward the constellation of Gemini -- M35 with binoculars and NGC 2158 with a small telescope. ...

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• Clusters and Nebulae of the Hexagon
• The Star Clusters of NGC 1313

... December 13, 1997 . The Coma Cluster of Galaxies . ... The Coma Cluster of Galaxies pictured is one of the densest clusters known - it contains thousands of galaxies . Each of these galaxies house billions of stars - just as our own Milky Way Galaxy does. ... In fact, the Coma Cluster is so big it takes light millions of years just to go from one side to the other! Most galaxies in Coma and other clusters are ellipticals , while most galaxies outside of clusters are spirals . ...

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• IBIS Gallery
• A Search for Clustering around Herbig Ae/Be Stars
• APOD: 2000 January 12 - NGC 6791: An Old, Large Open Cluster

... Deep ATCA imaging identifies a new black hole candidate in the globular cluster 47 Tucanae . ... Recent observational and theoretical work has suggested that stellar-mass black holes may exist in globular clusters, in contrast to previous theoretical predictions that they should be expelled via mutual gravitational interactions early in the lifetime of a cluster. ... 47 Tuc X9 is shown in purple, lying within the scatter of the black hole correlation. ... today * ATNF | ... ATCA | ...

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. Hercules Cluster of Galaxies . Coma Cluster of Galaxies . HST picture of intermediate redshift cluster . Distant HST Cluster ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

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• Astronomy HyperText Book: Stellar Clusters

. Next: Participants Up: Front Cover Previous: Preface . љ . Figure 1: Conference Participants . љ . Figure 2: Some of the participants enjoying the relaxed Mediterranean atmosphere . Norbert Pirzkal . 1998-07-09

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• No Title

... Bahcall Audit orium www.stsci.edu/inst itute/sd/talks/C olloquia for updates Wednesday June 4, 2008 Michael Fall, Space Telescope Science Institute This talk will present a comprehensive picture of the life cycles of star clusters, from their birth in molecular clouds to their dissolution in the field (unclustered) stellar population. ... This new picture revises several cherished beliefs in this field. ...

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• http://www.stsci.edu/institute/itsd/information/streaming/archive/HubbleFellowsSymposium2008/RachelMandelbaum031108Hi_supporting/RachelMandelbaum031108.pdf
• http://www.stsci.edu/~marel/abstracts/psdir/ic342post2.ps
• Dust Around Stars

... Anton.jpg . Arnold.jpg . Deligne-1.jpg . ... Deligne-Cartier-1.jpg . ...

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• Conference Zeta functions
• Conference Moduli Spaces

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

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• Spectrum-Roentgen-Gamma - The astrophysical Project at IKI RAN
• z90-program
• High Energy Astrophysics Department at IKI RAN

.

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• Astrolinks
• Astronomical Resources

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: Globular Clusters and Satellite Galaxies: Companions to the Milky Way
• ASP: Picture an Astronomer
• ASP Conference Series, Vols. 195-221

... Next: An IRAF-Independent Interface Up: Software Systems Previous: A New PROS . ... We present a high-level representation of the packages and tasks within IRAF/PROS. ... We have produced a high-level overview of PROS. ... The incremental stages were the short-term goals: a project overview diagram (i.e., an organizational diagram of software modules); high-level diagram (i.e., a bubble diagram of each module in the system); and unifying element tables (i.e., tables of task vs. software attributes)....

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• Positive Iterative Deconvolution in Comparison to Richardson-Lucy Like
• ADASS 2003 Conference Proceedings
• Astrostatistics and Databases

... 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

... n For illustration, examine a coarsened (256 в 256) set of images, with 3 clusters Clustering AIA data Clusters in log Y space Clusters in Y /n space Distribution of pixels in each cluster Distribution of pixels in each cluster Simulated Data Simulated Temperature Distributions 4 5 6 logT 7 8 9 Simulated Data Simulated Data Simulated Data Simulated Data Simulated Data: Results Simulated Data: Results Simulated Data: Results Simulated Data: Results How to make images of results more meaningful? ...

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• The AstroStat Slog Globular Clusters
• The AstroStat Slog Big Picture
• The AstroStat Slog Blog Archive The Big Picture

Home . ... Bookmarks ) . ... Home Page . ... 2dF Home Page . ... Astronomical Survey Projects . ... UVES Paranal Observatory Project . ... Jim Gray, Microsoft Research Home Page . ... Cog Kit Home Page . ... Sun Grid Engine . ... GRIDSTART - Home Page . ... Datacentric Grid Project . ... Grid Application Development Sofware Project (GrADS) . ... Rajkumar Buyya's Home Page . Javelin Home page . ... LaTeX Project Home page . ... The Association of Lisp Users . ... Chris Winter, 2005 . ...

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• The Comic Strip History of Space | OASES Over us All is the SElfsame Sky |
• OASES Photo Book | OASES Over us All is the SElfsame Sky | OASES 2010
• David Asher home page

Detailed identifications of the FIRST (and NVSS) radio sources are carried out for 26 rich Abell clusters of galaxies in the framework of the announced project (A.G.Gubanov et al. 1997, in ``Problems of modern Radio Astronomy'', XXVII Radio Astronomy conference, St.Petersburg, V.1, P.168). ... Identification of radio sources in clusters of galaxies"). Identifications are performed for all radio sources within Abell radius of cluster of galaxies (3 Mpc for the Hubble constant of 50 km/s/Mpc). ...

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• THE TEXAS SURVEY: Optical identifications
• Tclet for Cluster Database.
• A VLA Survey of Rich Clusters of Galaxies I.

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... So far in our hop from cluster to cluster we've seen associations , then constellations , and then our first truly bound group of open clusters . ... Some open clusters have tens of thousands of stars, but a decent globular cluster has over a million. ... Our Milky Way galaxy sports about 100 globulars that we have detected. ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Misconceptions