... 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. ...

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• ESLAB 2007

The Astronomy Shop . ... Shop | ... Cards | ... Sold in sets of 8 cards (two of each image) with envelopes in a Keepsake Wallet. ... Starbirth Clouds in M-16, Starbirth in the Trifid Nebula, Live Cycle of Stars in Galactic Nebula NGC 3603, and Inside the Lagoon Nebula. ... Majestic Spiral Galaxy NGC 4414, A Grazing Encounter of Two Spiral Galaxies, Infant Stars Ring Core of Galaxy NGC 4314, and Galactic Silhouettes. ... We have bulk pricing available. ... www.astronomy.net . About Astronomy Net | ...

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• The Astronomy Shop - Books - by Astronomy Net
• You Can Make Stellar Images Brighter - an Astronomy Net Article
• Summer Triangle - an Astronomy Net Article

... 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 NGC 7788
• SAI OCL Catalog Koposov 12
• SAI OCL Catalog King 20

... Future seminars . P a s t seminars . Seminar council . Stability of cold fronts in clusters of galaxies " . E. Churazov (IKI, MPA) . ... One of the insteresting results of Chandra and XMM-Newton observatories is the discovery of sharp structures in the X-ray surface brightness of galaxy clusters. These structures (a.k.a. cold fronts) are likely associated with the contacted discontinuities formed when a hot gas flows over a colder gravitationally bound gas cloud. ...

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• Solar Energetic Particles
• The Polar Aurora
• (S-7a) The Black Hole at the Center of our Galaxy

... In typical nightly use, the wide field and planetary telescope and cameras record images of favorably placed objects in the sky, including constellations, bright variable stars, nebulae through narrow-band filters, comets, the Moon, and planets. ... Shared Skies telescopes are available for use by students at the University of Louisville and the University of Southern Queensland, and by teachers and students in middle and high schools mentored by faculty at the universities. ...

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... About ATNF overview . ... Parkes | ... A star cluster is a group of stars that share a common origin and are gravitationally bound for some length of time. ... The two basic categories of stellar clusters are open clusters, also known as galactic clusters, and globular clusters. ... Open clusters are so-named due to the fact that the individual component stars are easily resolved through a telescope. ... M67, a very old open cluster has no star hotter than +0.4 colour index left on the main sequence...

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• Gravitational microlensing of giant luminous arcs: a test for compact dark
• RV Tau Variables in Globular Clusters - clues on their nature?
• Introduction

. F IGURE . 8. Relations between GC parameters and the horizontal-branch color index. The open circles correspond to the old halo, filled circles to the young halo (large filled circles correspond to clusters with (B-R)/(B+V+R)>0.32 ), and filled triangles to the corona. discussion in the text | privious figure | next figure .

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• Vladimir Marsakov Publication List
• Vladimir Marsakov Abstracts
• Vladimir Marsakov. Catalogues

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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This page is devoted to information on Supernova 1999gi in NGC 3184 . ... Information on the original web pages for many of these images can be found on the Supernova links web page. ... NGC 3184 is a fairly close Mag 10.3 galaxy, only about half as distant as the Virgo cluster. ... Seiichi Yoshida has a 1999gi page . Odd Trondal's 1999gi page . ... CfA image . ... 14.5 . ... Jean Marie Llapasset image . ... vsnet-alert 3805 ] SN 1999gi in NGC 3184 . vsnet-chat 2438 ] Host galaxy of SN1999gi . ...

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• Supernova 2002fk in NGC 1309
• Supernovae 2012fr in NGC 1365
• THE BRIGHT SUPERNOVA 1991T IN NGC 4527; AN AMATEURS PRESPECTIVE

... Meade Instruments Corporation . Telescopes ћ Binoculars ћ Microscopes . ... Asteroids can be observed, and their paths plotted in motion among the stars, through all Meade telescope models. ... Larger telescopes, including Meade DS-2000 series, LXD55 series, 8LX90 and LX200GPS, permit the observation of hundreds of variable stars throughout the sky. ... Larger telescopes such as the Meade LXD55 series, allow the observation of dozens of additional stars embedded in the nebula. ... about meade | ...

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• Meade Instruments Corporation - #497 Autostar Computer Controller for ETX-90EC,
• Meade Series 4000 Photo-Visual Color Filters
• UHTC Coatings: Ultra High Transmission Coatings, Special Coatings, Telescopes,

... Ultraluminous X-ray sources (ULXs) are located in external galaxies, their X-ray luminosities (10 39 - 10 41 erg/s) are thousand times greater than those of brightest black holes in the Galaxy. ULXs may be supercritical accretion disks around black holes of stellar masses (~10 Solar masses) like that in SS433, or they may be a hypothetical intermediate-mass black holes (hundreds - thousands Solar masses) with standard accretion disks. ... 2) The ULX progenitors were ejected from the star clusters. ...

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• Detection of unique bright radio flare of X-ray binary
• important_en
• A unique isolated dwarf spheroidal galaxy KKR25

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? ...

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Find Similar Abstracts . ... Intergalactic gas in galactic clusters, the microwave background radiation and cosmology . ... The types of information that can be obtained from astrophysical studies of the microwave background in the direction of galactic clusters and from radio observations of clusters are examined. ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...

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• Seminars
• Why do Radiopulsars not Usually Form Pairs with Normal Stars?

ABSTRACT: Both previous radiomessages for aliens, Arecibo 1974 and Evpatoria 1999 (see http://ebe.allwebco.com/Science for details) were the logical ones and represented the binary stream of FM information, which should be arranged into two-dimensional forms to perceive by eye-like sense-organ. ... So, I suggest to implement the 1st Theremin Concert for Aliens from Arecibo or Evpatoria Radar facility. ... The theremin was invented 80 years ago, in 1920 by Leon Theremin. ...

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• http://lnfm1.sai.msu.ru/SETI/eng/articles/zait_eng.html
• Scientific activity
• Yuri Nicolaevich Efremov - My Home Page

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

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• Additional Parts of Theoretical Astrophysics
• Extragalactic Astronomy

This Directory contains mean hourly, mean daily and mean monthly values of cosmic ray intensity recorded by World Network NM stations to the end of 2011. ... CD is created in WDC for STP, Moscow and IZMIRAN. ... This directiry contains catalogue Corrected for pressure and verificated data in WDC for STP, Moscow . This directiry contains catalogue Corrected only for pressure but Original data in WDC for STP, Moscow . ... 20 May - 22 July 1972, M., 1975 6. 27 March - 22 July 1972, M., 1975 7. ...

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• Catalogue 3 of WDC-B
• "STP Data" STP Data

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

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• On current distance scales for open clusters
• Home page of Dmitri Wiebe

Results from 6m telescope observations of globular clusters in dwarf galaxies Sharina M. We consider properties of globular clusters in dwarf galaxies observed with the multi-slit unit of the SCORPIO spectrograph at the SAO 6m telescope. ... Studying GCs in dwarf galaxies at the faintest end of the galaxy luminosity function provides valuable information for a better understanding of galaxy evolution and evolutionary connection between globular clusters and nuclei of galaxies. ...

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• The ROSAT Bright Survey: II. Catalogue of all high-galactic latitude RASS
• SCORPIO: IFP Gallery
• FORM (ФОРМА) - заполняемая форма

... The clustering of galaxies is usually described in terms of two-point correlation functions (r) and (). ... 2007): Evolution of the galaxy structure Morphological evolution Evolution of the galaxy structure Morphological evolution Abraham van den Bergh (2001): Evolution of the galaxy structure Radial surface brightness of spiral galaxies Evolution of the galaxy structure Radial surface brightness of spiral galaxies Evolution of the galaxy ...

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• http://www.astro.spbu.ru/staff/ilin2/INTAS/TEAMS/5-KHARK/team5
• Optical properties of cosmic dust analogs
• Model of clusters

... We report on the preliminary results of experiments using a Bayesian cluster method to cluster objects present in photographic images of the POSS-II. ... We believe that the application of such algorithms to large-scale astronomical sky surveys can aid in cataloging the detected objects, and may even have the potential to discover new categories of objects. ... We have thus started to explore new clustering analysis and unsupervised classification techniques for this task. ...

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• Automated Globular Cluster Photometry with DASHA
• Near-IR Imaging of Star-forming Regions with IRAF
• Numerical Observatory: a Web Site for the Retrieval, Analysis, and