... 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. ...

Общая Астрономическая Конференция > Практика > Астрономический наблюдательно-информационный портал . Double Cluster (Хи и Аш Персея (Chi & h Persei), NGC 869 и NGC 884) и скопления вокруг него . ... Темы раздела : Double Cluster (Хи и Аш Персея (Chi & h Persei), NGC 869 и NGC 884) и скопления вокруг него . ... Chi & h Persei, Двойное скопление Хи и Аш Персея - рассеянное скопление Double Cluster (Sword Handle cluster, NGC 869 и NGC 884, Caldwell 14) в созвездии Персей (Perseus) .. ...

. Main page . Photos . Leiden . Leiden . Leiden . Leiden . Leiden . Leiden . Leiden . Leiden . Previous page . 1 2 3 4 5 . Next page . Not paginated version of this web-page . Копосов Сергей , 2003-2007 . Koposov Sergey , 2007

... About StarCalc . News . ... StarCalc Home Page . Short description of changes, implemented in the StarCalc, . ... CHANGES OF PROGRAM CORE FUNCTIONS. CHANGES OF PROGRAM INTERFACE. CHANGES OF OBJECT INTERFACES. ... New "Output console". ... Information, which is generated by StarCalc, is added into the console - for example, ephemeris tables. ... In the StarCalc state file can be saved autorotation parameters, object selection, object locking mode, auto start and stop autorotation mode. ...

... Запорожский клуб АЛЬТАИР > . Catalogue of 109 new Galactic open clusters, for Cartes du Ciel . ... Cartes du Ciel - Sky Charts . ... Этот каталог является версией части каталога "J/A+A/440/403 109 new Galactic open clusters (Kharchenko+, 2005) ", а именно файла stars.dat, содержащего информацию о 26778 звездах до 14.627m , находящихся в 130 рассеяных скоплениях района Млечного Пути (Galactic Open Cluster). ... We present a list of 130 Galactic Open Clusters, found in the All-Sky . ...

... download page . ... Thus, each document consists of the facsimile picture of a page (scanned image) and its textual content. The system operates with both text and facsimile document versions, or with text content only. ... Feynman Lectures on Computation (text version 786 Kb, facsimile pages 996 Kb (whole book 32 Mb)). ... In general, the "Forget-Me-Not" information and navigation system can operate without facsimile pages, however to better estimate the program, we recommend to download them. ...

There are two modes to specify the time interval of ephemeris. ... This mode is applicable if the date of opposition belongs to the basic interval of 16 months from November of the year preceding to the title one to February of the subsequent one. In this case the ephemeris is centered at the nearest standard moment (its Julian day minus 0.5 is exactly divisible by 10) which precedes or coincides with the moment of opposition of minor planet in specified year. ...

... Tour Objects Tours can be created using objects from within the Autostar database or a user can enter in different objects (such as a newly discovered comet). ... Automatic Mode: As the user advances to each object, the title of the object appears on line 1 of the display while its descriptive text automatically starts scrolling across line 2. ... For example: STAR "Rigel" LANDMARK az alt "title" "description" Enter the azimuth (az) for the desired object in the following format xxxdxxmxxs. ...