. ћ . Наши юбиляры . љљљљљљљ љљљљљљљљљ . ћ Сотрудники отдела . ћ Наша научная работа . ћ Семинар по Звездной астрономии . ћ Конференции . ћ Общий Каталог Переменных Звезд . ћ Каталог рассеянных скоплений . ћ Московская школа звездной астрономии . ћ Юбилеи сотрудников . ћ Избранные публикации . ћ Педагогическая и популяризаторская деятельность . ћ Наши интернет-ресурсы и другие полезные ресурсы . ћ Ссылки на каталоги и базы данных . ћ Фотогалерея . Присылайте Ваши вопросы и комментарии Ольге Дурлевич

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• Types of Nebulae
• APOD Index - Stars: Open Clusters

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

... 13 Mar 13 2007 8 NGC 2422 M47 H38-8 Open Cluster 5.0 I 3 m CL,B,VL,PRI,ST L$S Mar 16 2012 18 Mar 01 2011 12 Mar 08 2010 12 Mar 20 2009 16 Mar 19 2006 8 Mar 19 2004 8 Dec 30 2003 8 17mmAT 2012 M.M . 17mmAT M.M . 2011 - MANUAL SETTING CIRCLES 26mm 26mm 25mmPL 25mmPL 25mmPL ... 15 Mar 28 2008 1.9" Mar 13 2007 8" NGC 2539 17mmT4 12x50 19mmW H11-7 Open Cluster 9.0 III 2 m CL,VL,RI,LC,*11.. ... Mar 28 2008 1.9" Mar 13 2007 8" Page 2 of 2 ...

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• http://www.wro.org/neumann/RNGC_by_Constellation-Aur.pdf
• http://www.wro.org/neumann/RNGC_by_Constellation-Hya.pdf
• http://www.wro.org/neumann/RNGC_by_Constellation-CMa.pdf

... 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. ... The small, colorful patch of glowing gas in M46 is actually the planetary nebula NGC 2438 - the final phase in the life of a sun-like star billions of years old. ... NGC 602 and Beyond . ...

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• M15: Dense Globular Star Cluster
• Астронет > M15: Dense Globular Star Cluster
• Star Cluster Messier 67

... 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 . ... Globular cluster M28, open cluster M25, and planetary nebula NGC 6781 . August 20 27, 2015: Globular cluster M28 and open cluster M25 in Sagittarius offer small-telescope owners nice views, while large-telescope owners can seek out planetary nebula NGC 6781 in Aquila. ... Globular cluster M28 . ... Planetary nebula NGC 6781 . ...

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• A trio of open clusters in Cygnus, planetary nebula NGC 7139, and elliptical
• star clusters | Astronomy.com
• stars and star clusters | Astronomy.com

... STScI-PRC00-25 A DYING STAR IN GLOBULAR CLUSTER M15 The globular cluster Messier 15 is shown in this color image obtained with the NASA Hubble Space Telescope's Wide Field Planetary Camera 2 (WFPC2). ... Known as Kuestner 648, this was the first planetary nebula to be identified in a globular cluster. ... At the present time, the most massive stars remaining in M15 have about 80 percent of the mass of our Sun, a fact that makes the existence of a planetary nebula like K 648 something of a mystery. ...

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• APOD: 2000 August 4 - M15: Dense Globular Star Cluster
• APOD: December 13, 1997 - The Coma Cluster of Galaxies
• A Search for Clustering around Herbig Ae/Be Stars

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

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

... 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 SAI 138
• SAI OCL Catalog King 13
• SAI OCL Catalog Ruprecht 68

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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• Hubble shows us a spectacular star cluster | Astronotes
• Omega Centauri: globular cluster of 300,000 stars | Astronotes
• HST | Astronotes - Part 4

... Messier 13 Great Globular Cluster in Hercules (M13) - шаровое скопление NGC 6205 (Melotte 150) в созвездии Геркулес (Hercules) .. ... Просмотр полной версии : Messier 13 Great Globular Cluster in Hercules (M13) - шаровое скопление NGC 6205 (Melotte 150) в созвездии Геркулес (Hercules) .. ... Messier 13 Great Globular Cluster in Hercules (M13) - шаровое скопление NGC 6205 (Melotte 150) в созвездии Геркулес (Hercules (http://www.starlab.ru/showpost.php?p=480881&postcount=1)) .. ... Messier 13 (M13) .:...

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• Messier 7 Ptolemy's Cluster - рассеянное звездное скопление NGC 6475 в
• Messier 93 Butterfly Cluster - рассеянное звездное скопление NGC 2447 в
• Messier 3 Canes Venatici cluster (M3) - шаровое скопление NGC 5272 (Melotte

... Non-NGC Images . ... Globular cluster in Scorpius (M80)..... image ..... caption . ... Globular cluster in Scorpius (M4)..... image ..... caption . ... Globular cluster in Oph (M107)..... image ..... caption . ... Nebula..... image . ... Globular cluster in Hercules (M13)..... image ..... caption . ... Globular cluster in Ophiuchus (M12)..... image ..... caption . ... Infrared-bright galaxy in Ophiuchus..... image ..... caption . ... Globular cluster in Ophiuchus (M10)..... image ..... caption . ...

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• ASP: Big Clusters, Tiny Galaxies
• ASP: Globular Clusters and Satellite Galaxies: Companions to the Milky Way
• ASP: Star Cluster M11

This site provides on-line access to publications, figures, and data tables related to an extensive multi-wavelength observational program to study distant galaxy clusters. ... Lori Lubin, Bev Oke, and Marc Postman have been studying a sample of 9 distant clusters (some taken from the PDCS) using the Keck 10m telescope, the HST, and the KPNO 4m (for IR imaging). ... A Study of Nine High-Redshift Clusters of Galaxies: I. The Survey, . ... A Study of Nine High-Redshift Clusters of Galaxies: II. ...

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• Planetary Nebula K 648
• ST ScI Preprint #1362
• Cluster Lensing: Peering into the Past, . Planning for the Future

... The routines implemented are CLUSTER which has 8 options for hierarchical clustering and PARTITION which carries out non--hierarchical clustering. ... The former is non--hierarchical clustering or partitioning. The latter is hierarchical clustering. Brief consideration will show that a sequence of n-1 agglomerations are needed to successively merge the two closest objects and/or clusters at each stage, so that we have a set of n (singleton) clusters, n-1 clusters, ..., 2 clusters, 1 cluster. ...

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• A VLA Survey of Rich Clusters of Galaxies I.
• Sources in Abell clusters
• A 1400-MHz Survey of 1478 Abell Clusters of Galaxies

... Archives . ... my first AAS. ... I was questioned by two attendees, acquainted before the AAS, if I can suggest them clustering methods relevant to their projects. ... classification vs. clustering or supervised learning vs. unsupervised learning : the former terms from the pairs indicate the fact that the scientist already knows types of objects in his hands. ... Tags: Classification , clustering , cosmology , spatial statistics , supervised learning , test , unsupervised learning . ...

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• The AstroStat Slog clustering
• The AstroStat Slog globular cluster
• The AstroStat Slog Blog Archive Classification and Clustering

ATMoB Awards Program - Messier Marathon Worksheet Observer: Date: Instrument(s) Used: Location: Messier Observing Catalog/Worksheet Observing Order 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Messier Number M 77 M 74 M 33 M 31 M 32 M110 M 52 M103 M 76 M 34 M 45 M 79 M 42 M 43 M 78 M1 M 35 M 37 M 36 M 38 M 41 M 93 M 47 M 46 M 50 ...

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• http://www.atmob.org/about/observing/awards/files/open_cluster_instructions_2011-02-01.pdf
• http://www.atmob.org/library/member/skymaps/MAPKEY.PDF
• Amateur Telescope Makers of Boston ATMoB Observing Awards Program

. F IGURE . 3. Relations between the metallicity and other GC parameters. The open triangles are thick-disk clusters; open circles, old halo clusters; filled circles, young-halo clusters; filled triangles, corona clusters; and crosses, metal-poor clusters with unknown (B–R)/(B+V+R) . Only clusters with R<60 kpc are shown in (c). A sharp jump near [Fe/H]=-1.0 is seen in all plots. discussion in the text | previous figure | next figure .

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• Globular clusters with anomalously small masses, figures

... ESO, the European Southern Observatory . ... Travel and Contacts . ... Zoomed in view of the pointing relative to the SUC field. The image shows a 30 x 30 arcminute field centred on the Messier 86/ Messier 84 region of the Virgo cluster. ... Here the envelopes of bright galaxies are subtracted as much as possible for the detection of planetary nebulae embedded there. ... Intracluster planetary nebula candidates are marked by circles and show a highly non-uniform distribution in this field. ...

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• ESO - Thesis Topic: Next generation Fornax Cluster surveys
• ESO - Obscured star cluster population in the Milky Way
• ESO - Thesis Topic: Studying the first galaxy clusters with ALMA

... MAO main . ... The DRAGON globular cluster simulations: a million stars, black holes and gravitational waves . ... simulations of globular clusters with a million stars on the high-performance . ... of stars in globular clusters at unprecedented detail but also shed light into . the dark world of black holes. ... clusters of single and binary black holes. ... of a globular cluster. www.mpa-garching.mpg.de/328833/hl201603 . ... MAO/NASU, 27 Akademika Zabolotnoho St. 03680 Kyiv, Ukraine . ...

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• MAO NASU :: Topic: 1st Announcement IAU Symposium 312 Star Clusters and Black
• Achievements - Page 4
• The Laboratory of Astrometry

... The most powerful and widely used methods to calculate the scattering matrix of a fractal cluster are based on the coupled dipoles methods (e.g. the Discrete Dipole Approximation, DDA) and the theory of light scattering by a cluster of spherical particles [2-4]. ... At present the procedure of calculation of the scattering matrix is well developed for both an oriented cluster of spherical particles and for chaotically oriented clusters of such particles [4]. ...

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• Model realization and some results

... Australia Telescope Compact Array . ... Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or Extremely Compact Dwarf Galaxies? ... We suggest that these objects are either super-massive star clusters (intra-cluster globular clusters or tidally stripped nuclei of dwarf galaxies) or a new type of low-luminosity compact elliptical dwarf (``M32-type'') galaxy. ... Keywords: galaxies: star clusters -- galaxies: dwarf -- galaxies: formation . ... Properties of the compact objects ...

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• Radio Images of the Globular Cluster 47 Tucanae
• RV Tau Variables in Globular Clusters - clues on their nature?
• Blind HI Survey in the Centaurus and Fornax Clusters