... M4: The Closest Known Globular Cluster . ... Explanation: M4 is a globular cluster visible in dark skies about one degree west of the bright star Antares in the constellation Scorpius . M4 is perhaps the closest globular cluster at 7000 light years , meaning that we see M4 only as it was 7000 years ago, near the dawn of recorded human history . Although containing hundreds of thousands of stars and spanning over 50 light-years, M4 is one of the smallest and sparsest globular clusters known. ...

Еще в разделе: (Показать все результаты (>2003) - www.sai.msu.su/ )

• APOD: 2003 August 4 - In the Center of the Virgo Cluster
• APOD: 2005 February 13 - In the Center of the Virgo Cluster
• APOD: 2001 January 26 - Galaxies Of The Virgo Cluster

... Messier 9 Close Up . ... Credit Copyright: ESA/Hubble , NASA Explanation: Renown 18th century astronomer Charles Messier described this 9th entry in his famous astronomical catalog as "Nebula, without star, in the right leg of Ophiuchus .. But Messier 9 (M9) does have stars, known to modern astronomers as a globular cluster of over 300,000 stars within a diameter of about 90 light-years. ... Publications with keywords: globular cluster . Publications with words: globular cluster . ...

Еще в разделе: (Показать все результаты (>76379) - www.astronet.ru/ )

• M4: The Closest Known Globular Cluster
• Астронет > M4: The Closest Known Globular Cluster
• X Ray Stars of 47 Tuc

... October 18, 1999 . NGC 3603: An Active Star Cluster . ... Explanation: NGC 3603 is home to a massive star cluster, thick dust pillars, and a star about to explode . The central open cluster contains about 2000 bright stars, each of which is much brighter and more massive than our Sun . ... These stars are less massive than our Sun, demonstrating that great numbers of low-mass stars also form in active starburst regions . ... About APOD > . ...

Еще в разделе: (Показать все результаты (>132) - www.arcetri.astro.it/ )

• APOD: 2000 August 4 - M15: Dense Globular Star Cluster
• APOD: December 13, 1997 - The Coma Cluster of Galaxies
• APOD: May 3, 1997 - Giant Cluster Bends, Breaks Galaxy Images

... 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. ...

Еще в разделе: (Показать все результаты (>222) - ocl.sai.msu.ru/ )

• SAI OCL Catalog Publications
• SAI OCL Catalog Description
• SAI OCL Catalog Structure

... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...

Еще в разделе: (Показать все результаты (>23) - uranus.sai.msu.ru/ )

• The Database of Close Binary Systems
• Anatol Cherepashchuk
• Eugene Trunkovsky

Московский государственный университет имени М.В.Ломоносова Основан в 1755 году . Нормативные документы МГУ . Правила приема в МГУ в 2016 году . Дополнение к правилам приема в МГУ имени М.В.Ломоносова в 2016 году для лиц, проживающих в Крыму . ... Перечень иностранных языков, по которым проводится вступительное испытание по иностранному языку при приеме на первый курс на обучение по программам магистратуры в МГУ имени М.В.Ломоносова в 2016 году . ... центральной приемной комиссии, . ...

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