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 . ...

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. ...

... Site search . ... Site map . ISC Kosmotras . ... Comments, Opinions Publications Dnepr Program . 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 . ... Launch campaign for DubaiSat-2 cluster mission has started at Yasny Launch Base. ... Launch Sites . ...

... Probing the Universe with galaxy clusters: New windows from new technologies . Dr Mark Bautz . ... A key to this progress has been the study of these objects using telescopes operating at millimeter, visible, infrared and X-ray wavelengths. ... His current research interests concern new X-ray imaging detector and observational studies of clusters of galaxies. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

INTEGRAL spectra of Galactic Bulge sources. Laura BarragАn Laura BarragАn. ... ISGRI // PICsIT FOV ~ 8є x 8є · JEM-X (Join European Monitor for X-rays) 3 ­ 35 keV Images FOV: 5є radius circle · SPI (Spectrometer on Integral) · OMC (Optical Monitoring Camera) INTEGRAL spectra of Galactic Bulge sources. ... Laura BarragАn Obtaining the data IBIS/ISGRI 81 sources 10 hours JEM-X 12 more significant sources 1 hour INTEGRAL spectra of Galactic Bulge sources. ...

... LMC Project Outline . NGC 1818 Initial Results . ... The Large Magellanic Cloud (LMC) is uniquely suitable for the study of massive star clusters at all stages of evolution. By combining HST observations of these clusters with N-body models we hope to understand the origin and evolution of rich star clusters in our own Galaxy, in the LMC, and beyond. ... We aim to combine our HST observations with N-body models to understand the formation and evolution of globular clusters. ...

This module provides an environment variable with a unique identifier for each request. ... The unique identifier is even unique across multiple machines in a properly configured cluster of machines. ... On Unix machines, Apache creates several children, the children process requests one at a time. ... To distinguish time we will use a Unix timestamp (seconds since January 1, 1970 UTC), and a 16-bit counter. ... The actual ordering of the encoding is: time stamp, IP address, pid, counter. ...

... Bad Astronomy . ... Bitesize Astronomy . ... The next step up are true clusters, called open clusters . Open clusters (sometimes misleadingly called "galactic clusters") are groups of stars ranging in size from a few dozen stars up to tens of thousands. ... The youngest is about 1 or 2 million years old, while the oldest is about 6 or 7 billion years, making it just older than our own solar system. ... So by looking at the stars in the cluster we can tell pretty well how old they are. ...

Name Last modified Size Description . Parent Directory - coma_cluster_B_00014dfw.fits 2012-04-11 21:51 64M coma_cluster_R_00012dfw.fits 2012-04-11 22:40 64M coma_cluster_V_00013dfw.fits 2012-04-11 22:36 64M coma_rgb_log_100_20120410.jpg 2012-04-11 23:10 288K . Apache/2.4.6 (Linux/SUSE) Server at www.astro.louisville.edu Port 80

... 18 Sep 19 1984 12.5" 16mm Jul 30 1981 12.5" 16mm MF,ML,ELONG-REC SHAPE,MANY *'S APPROX SAME MAG,MANY *'S RESOLVED ELONG,*'S 10.. ... 9 MAG,MB,ML EASILY DET NGC 6842 Planetary Neb 3b F,PL,VLE Jun 27 2003 12.5 9mmT6 Jul 30 1981 12.5 12mm MB,ML,PATCHY AREAS DET,R,SHISB WITH OIII FILTER,R=E VDIF,LOC IN SOMEWHAT BARREN * FIELD,VF,MS,F*'S INSIDE OF GLOW,NOT SURE OF DET NGC 6853 M27 Planetary Neb 3+2 VB,VL,BIN,IE,DUMBBEL 17mmT4 Jul 05 2008 31 Mar 22 2004 12.5 12mmT4 Aug 20 ...

The new view on the population of Galactic open clusters A.E.Piskunov1, N.V.Kharchenko2, S.RЖser3, E.Schilbach3, R.-D.Scholz4 1 2 3 4 Institute of Astronomy, Moscow, Russia Main Astronomical ... Observatory, Kiev, Ukraine Astronomisches Rechen-Institut, Heidelberg, Germany Astrophysikalisches Institut Potsdam, Germany What are open clusters and what do they teach us Groups of Population I ... Cluster complexes: OCC-1 = Gould's Belt cluster complex? ...

On the problem of using of the ICRF radio coordinates reference system Lipovka A.A. (1), Lipovka N.M. (1) Center of research for physics, Sonora State University e-mail: nila_lip@mail.ru Bibliography 1. ... Columns 8, 9 are corrections to right ascension and declination, which should be added to coordinates of ICRF2 radio sources, to obtain coordinates of optical objects, with which these radio sources are identified. ... Lipovka .. ... Fig 3 Fig 3 ...

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