... ESA , NASA Explanation: How old is this galaxy? The nearby Local Group galaxy dubbed the Sagittarius Dwarf Irregular Galaxy (SagDIG) is not only very small but also has relatively few elements more massive than helium . ... Although SagDIG does have some groups of young stars, many stars are very old, and the galaxy as a whole helps astronomers to understand how the universe evolved , and show that at least one metal-poor galaxy is almost as old as the universe. ... NASA Official: Jay Norris. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2012 November 18 . NGC 6357: Cathedral to Massive Stars . Image Credit: NASA , ESA and Jes s Ma z Apell niz ( IAA , Spain) . Explanation: How massive can a normal star be? ... Toward the bottom of the image, stars are still forming in the associated emission nebula NGC 6357 . ... About APOD | ... A service of: ASD at NASA / GSFC . ...

... November 30, 1999 . Henize 70: A SuperBubble In The LMC . ... Explanation: Massive stars -- upwards of tens of times the mass of the Sun - profoundly affect their galactic environment. ... It is actually a luminous "superbubble" of interstellar gas about 300 light-years in diameter, blown by winds from hot, massive stars and supernova explosions , its interior filled with tenuous hot expanding gas. ... About APOD > . ...

... Spanish translation of "Stargazers" by J. M. Mendez and Horacio Chavez . ... Astronomy of the Earth's motion in space: . ... The Path of the Sun, the Ecliptic . ... 4b. Optional: Libration of the Moon . ... Kepler's 3 Laws of Planetary Motion ," a one-hour overview lecture to teachers presented 23 March 2005. Guide to the sections on Kepler's Laws which follow below. ... 11a. Ellipses and Kepler's First Law . ... Kepler's Second Law . 12a. More on Kepler's Second Law . ... Kepler's Third Law . ...

This page elaborates on the previous example which discussed the use of color maps in connection with Ggi plot fields. ... How this can be done will be shown in a later example. /* example8.c -XT */ # include stddef.h # include math.h # include gipsyc.h # include cmain.h # include init.h # include finis.h # include userfio.h # include pgplot.h # include ggi.h #define ROWS 100 /* number of image rows */ #define ...

... To avoid extensive numerical calculations in the statistical simulations, we treat the continuous evolution of each binary component as a sequence of a finite number of basic evolutionary states (for example, main sequence, red (super)giant, helium (Wolf-Rayet) star,     hot WD), in which stellar parameters significantly differ from each other. ... Figure 2: Schematic representation of the typical evolutionary track of a massive binary system with normal and compact star stages indicated. ...

This is a color composite image made by Karen Gloria at Hopkins Observatory using a 6-inch refractor and a 512x512 element CCD detector. This is the famous Trifid Nebula, often photographed. It is a nice illustration of the combined effections of ionization and scattering caused by the large yield of blue and UV photons from newly formed massive stars.

... Archives . ... Discontinuation of weekly [arXiv] series . ... For a discipline that relies so heavily on images, it is rather surprising how little use astronomy makes of the vast body of work on image analysis carried out by mathematicians and computer scientists. ... images. ... Images may be Opened and Closed with different structure elements. ... Tags: close , dilate , EotW , Equation , Equation of the Week , erode , Morphological operator , open , set theory . Category: Imaging , Jargon | ...

Open Systems Handbook: A Guide to Building Open Systems . ... This book is designed to provide interested individuals and organizations with an overview of open systems and the work being done to achieve them. ... This section is organized using a descriptive model of an open systems environment developed by the IEEE PI 003.0 Working Group, which is developing the Guide to POSIX-based Open System Architecture. ... Standards for open systems 13 . Chapter 3: The open systems environment (OSE) 15 . ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . ... d) The Age of the Chemical Elements . ... Some isotopes (forms of the element with different numbers of neutrons in the nucleus) of these elements are radioactive; they change into other isotopes at a rate that can be measured accurately in the laboratory. ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

build_PRD_file (version 4/15/04) . ... The program builds a list, where the first element is a string . ... o Updated 3/30/04 KWC - Changed module name to build_prd_files. o Updated 4/15/04 KWC - Use new prd_file_data object. Modules . ... class build_PRD_file . ... init__ (self, prd_root_dir =None , prd_file_type =None , PRDUVM_branch_name =None , change_tree_root_dir =None , new_file_list =None , collection_id =None , tag_id =None ) . ... New file list = List PRD elements to be merged into . ...

... Planets . ... Earth Satellites . ... The newly discovered ?mega-Earth? ... Its sibling, the lava world Kepler-10b, is in the background (the two planets? proximity is grossly exaggerated) .€а Kepler-10c has a diameter of about 29 000 km, 2.3 times as large as Earth, and weighs 17 times as much. ... The first mega-earth to be discovered is Kepler-10c which orbits a star lying about 560 light years from the Sun in the constellation Draco. ... Astronomers Find a New Type of Planet: The ?Mega-Earth? ...

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

... Bojan Nikolic web pages (r. 329) . ... Building CASA . ... /ccm/CCM_Local/CCM_OCL/OclHelpers.h 2009-09-29 14:30:42.000000000 +0100 @@ -123,10 +123,10 @@ OCL_Collection T excluding( const T object ) const { OCL_Collection T result; - const int s = size(); + const int s = vector T ::size(); for( int index=0; index s; index++ ) { - const T element = operator[](index); + ... Building CCMTools as required by CASA . ... Building . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

... Recent Topics . ... MAO main . ... November Issue: Master Builders . ... Тема: November Issue: Master Builders . To view this email as a web page, go here. links.email.scientificamerican.com/servl.. NzgyNzc2MzQ2S0 =0 . ... SciAm.com - Issue Alert - SA October 20, 2015 . ... The construction of Egypt's most famous monument spawned a social organization that changed the world links.email.scientificamerican.com/ctt?k... ... Check out our NEW Products! links.email.scientificamerican.com/ctt?k... ...

This document explains values, tables and other matters on solar physics computing pages. ... is040423.ete : SAHA-S tables, interpolation values: T, rho, X. Z is fixed at 0.02. See reference above. opal2005.etf : OPAL EOS, interpolation values: T, rho, X, Z. Downloaded from OPAL site , marked there as "2005", seems to be unpublished. opal2001.etf : OPAL EOS, interpolation values: T, rho, X, Z. Rogers F.J., Nayfonov A. Astrophys. ... The following values can be calculated: . ... dimensionless . ...

... We present a pro ject of an Information system on binary stars (ISBS). ... Stars from the following catalogues will be included in the first version of ISBS: Catalog of orbital elements , masses and luminosities of close double stars ( Svechnikov Bessonova 1984); The catalogue of approximate photometric and absolute elements of eclipsing variable stars ( Svechnikov Kuznetsova 1990); The catalogue of orbital elements , masses and luminosities of detached main-sequence ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... RSC Energia after S.P. Korolev is the leading enterprise of Russian rocket and space industry in the filed of manned space flight programs; responsible for building the ISS Russian Segment, its being integrated into the station and operational use, including building and operation of the main segment modules (Zvezda, Pirs, Poisk, Rassvet, etc.), as well as manufacture, commissioning and operational use of Soyuz TMA, Progress-M space vehicles. ...

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