... 2012 April 3 . M46 M47: Star Clusters Young and Old . ... Separated by about a degree on the sky, two nice examples are M46 (upper left) 5,400 light-years in the distance and M47 (lower right) only 1,600 light-years away toward the nautical constellation Puppis . Around 300 million years young M46 contains a few hundred stars in a region about 30 light-years across. Aged 80 million years, M47 is a smaller but looser cluster of about 50 stars spanning 10 light-years. ... About APOD | ...

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• APOD: 2010 April 29 - Virgo Cluster Galaxy NGC 4731
• APOD: 2006 April 19 - Mars and the Star Clusters
• APOD: 2006 April 13 - Star Cluster Dreams

... 29.04.2010 . ... Credit: Stephen Leshin Explanation: Barred spiral galaxy NGC 4731 lies some 65 million light-years away. ... Colors in this well-composed, cosmic portrait , highlight plentiful, young, bluish star clusters along the galaxy's sweeping spiral arms . ... NGC 4697 is beyond this frame above and to the left, but a smaller irregular galaxy NGC 4731A can be seen near the bottom in impressive detail with its own young blue star clusters. ... Publications with keywords: spiral galaxy . ...

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• M46 and M47: Star Clusters Young and Old
• APOD: 2008 April 2- Globular Cluster M55 from CFHT
• Star Clusters Young and Old

... 2000, ApJ, 537, L49 . ... F. Palla . Invited Talk at the IAU Symposium 200 "The formation of binary stars" eds. R.D. Mathieu and H. Zinnecker (ASP Conf. Ser.) in press . Optical follow-up of ROSAT discovered candidate members of the open cluster Coma Berenices . ... 2000, A , in press . ... 2000, ApJ, in press . ... 2000, ApJ, in press (Sept. ... 2000, ApJ Lett., in press . ... Click to examine publications from other years . ... Star Formation Group . ... Arcetri Home Page . ...

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• Pubblicazioni recenti

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, March/April 1997
• ASP: Contents, March/April 2004

... GSAOI Home . ... Science . ... Deep J , H , and K imaging is required of Galactic and Magellanic Cloud analogs of the super star clusters identified in starburst galaxies. ... Images of the 30 Doradus star cluster in the Large Magellanic Cloud in the visible ( left panels ) and near-infrared ( right panels ) take from the ground ( top panels ) and with the Hubble Space Telescope ( bottom panels ). The fields of the GSAOI detectors are shown as four green squares in each frame. ...

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• GSAOI Open Cluster Science Page
• Dougal Mackey - Research
• Dougal Mackey - CV

... My primary research interests are the formation and evolution of nuclear star clusters. ... Nuclear star clusters are common objects in nearby galaxies. ... Feldmeier-Krause, A. ; Neumayer, N.; SchУЖdel, R.; Seth, A.; Hilker, M.; de Zeeuw, P. T.; Kuntschner, H.; Walcher, C. J.; LУМtzgendorf, N.; Kissler-Patig, M. Astronomy Astrophysics, accepted, 2015 . ... SchУЖdel, R.; Feldmeier, A. ; Neumayer, N.; Meyer, L.; Yelda, S. Classical and Quantum Gravity, Volume 31, Issue 24, 12/2014 . ... 2014 . ...

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• ESO - Dynamics of Low-Mass Stellar Systems: From Star Clusters to Dwarf...
• ESO - star07
• ESO - MilkyWayStarFormation

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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• The Galaxy Gallery Page IX: Clusters of Galaxies

... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... SUBJECT: 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... which will be held in Beijing, P.R. China, from August 25-29, 2014, hosted by Chinese Academy of Sciences . ... China), . ... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. ...

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... Tonight's Sky . ... Sky this Month . ... galaxies . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Astronomy for Kids . ... What's the difference between globular clusters and dwarf spheroidal galaxies? ... Dwarf spheroidal galaxies are much bigger than globular clusters. The Pegasus dwarf spheroidal galaxy, which orbits the famous spiral galaxy M31 in Andromeda, spans 2,000 light-years. ... Get instant access to subscriber content on Astronomy.com! ...

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• star clusters | Astronomy.com
• stars and star clusters | Astronomy.com
• galaxy clusters | Astronomy.com

... 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

... Decelerating and Dustfree: Efficient Dark Energy Studies with Supernovae and Clusters . Abstract . ... The Onset of Star Formation in the Universe: Constraints from Nearby Isolated Dwarf Galaxies . ... An ACS SNAPshot Survey . ... A Snapshot Survey of Brightest Cluster Galaxies and Strong Lensing to z = 0.9 . ... ACS survey observations of eight clusters are scheduled for the coming week, together with follow-up NICMOS observations of a supernova detected in previous ACS images. ... Past weeks: . ...

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• HST this week: 113
• High Redshift Cluster Projects
• Cluster Lensing: Peering into the Past, . Planning for the Future

ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

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

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• CV of Dmitry S. Nasonov
• SCORPIO: IFP Gallery
• GRB follow-up team

. Expect ~40 clusters, ~16 with z>0.5 . Home | Science Goals | Survey Strategy | Publications | Images & Data | Education/Outreach | Internal Page (password access only) . Date Last Modified: 22 April 2002 . Contact: Webmaster .

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• Doug Burke: Publications List
• Rotation Periods of ZAMS Stars
• The AstroStat Slog clusters

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

... Armagh Planetarium . ... Universe . ... Posted on April 19, 2012 | ... Continue Reading.. ... 2 Comments In the upcoming weeks you will be hearing in the news the words тАЬDragon SpacecraftтАЭ, so Sinead McNicholl has the full story on what exactly this new vehicle is and [ ] . ... Posted on March 29, 2012 | 3 Comments The month of April is fantastic month for stargazing and for astronomy in general with numerous dates to mark in your calendar. ?аFrom Earth Day celebrated on 22 April, in [ ] . ...

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• M55 globular cluster seen by ESO | Astronotes
• Omega Centauri: globular cluster of 300,000 stars | Astronotes
• Hubble shows us a spectacular star cluster | Astronotes

... Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. Dnepr Cluster Mission 2014 6 November 2014. ... Mission profile SHM configuration Reliability Dnepr LV Performance Launch Sites . Baikonur Cosmodrome Yasny launch base Downloads . ... The original launch date for the RS-20 (converted SS-18 ICBM, commercially known as Dnepr) cluster launch mission was scheduled for March 27, 2007. ...

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• Launch Campaign of DubaiSat-2 Cluster Mission
• Launch Date of DubaiSat-2 cluster mission
• Dnepr Cluster Mission 2013

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
• Vladimir Marsakov Abstracts

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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• A 1400-MHz Survey of 1478 Abell Clusters of Galaxies
• A VLA Survey of Rich Clusters of Galaxies I.
• A VLA Survey of Rich Clusters of Galaxies III

The NEW ATNF Pulsar Catalog . The EPN Data Archive (Local Mirror) . The Pulsar Planets Home Page . Table of pulsars in Globular Clusters . Catalog of Milky Way Globular Clusters (local copy) . Dave Green's Supernova Remnant Catalog (local copy) . ... VizieR Service (astronomical catalogs) . ... Pulsar Bibliographical Database . ... The Astronomical Journal . ... NAIC] [Astro Home] [Staff] [Observing] [Receivers] [ALFA] [RFI] [Data] [Memos] [Publications] [Calendar] [Contacts] . ...

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• Pulsar Highlights - A Dozen new MSPs in Globular Clusters
• The Pleiades
• Arecibo Observatory Publications