This page will contain definitions (and basic references) of the following parameters: . cross-sections C ext , C sca , C abs , C bk ; . efficiencies Q ext , Q sca , Q abs , Q bk ; . ... TE/TM mode definitions for arbitrary shapes. Note that some parameters are defined in a quite different (specific) manner than for spherical scatterers, and some definitions in the book of Mishchenko et al. ...

... 2002 July 25 . NGC 1569: Heavy Elements from a Small Galaxy . ... Still, heavy elements can profoundly influence galaxy and star formation ... not to mention the formation of planets and people. In this tantalizing false-color x-ray image from the orbiting Chandra Observatory , small dwarf galaxy NGC 1569 is surrounded by x-ray emitting clouds of gas thousands of light-years across. ... About APOD | ...

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 | ...

... NGC 1569: Heavy Elements from a Small Galaxy . ... Still, heavy elements can profoundly influence galaxy and star formation ... not to mention the formation of planets and people. In this tantalizing false-color x-ray image from the orbiting Chandra Observatory , small dwarf galaxy NGC 1569 is surrounded by x-ray emitting clouds of gas thousands of light-years across. ... Publications with keywords: dwarf galaxy - X-ray . Publications with words: dwarf galaxy - X-ray . ...

. Computer Ephemeris. Elements of osculating planetary orbits. Explanations. Each row contains at 0h of Time Dynamical Terrestrial of specified date in system of mean equator and ecliptic J2000.0 the ecliptic osculating elements of heliocentric orbit: inclination of orbital plane (degrees), longitude of ascending node (degrees), argument of perigelion (degrees), semimajor axis (astronomical units), mean motion (degrees per day), eccentricity (dimensionless), mean anomaly (degrees).

Bit field are structures in c that hold bit fields. ... typedef struct { unsigned int b1:1; unsigned int b2:8; unsigned int b3:7; unsigned int b4:8; unsigned int b5:7; unsigned int b6:1;} BIT_STRUCT; . ... big endian and little endian machine and you were willing to massage the data on input . ... Big endian . ... Little endian . ... This won't work because the little endian bit field wants the first bit field close to the front of the first byte. bit flip each 8 bit byte of the structure. ...

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Namespaces . Classes . ... NamespaceљList . ... All љ Classes љ Namespaces љ Files љ Functions љ Variables љ Typedefs љ Enumerations љ Enumerator љ Macros љ Pages . tcc . ... tcc.parse.cmdParse Namespace Reference . ... A class that holds command definitions, and can parse tcc commands. ... defљ . ... Return the index of keyword in list allowing unique abbreviations and independent of case. ... Constructs a generic TCC command from pyparsing elements. ...

... Sierpinski gasket ґ 5 7 9 9 11 15 20 23 23 27 30 31 33 33 34 38 41 42 44 46 47 49 55 55 55 57 58 59 59 66 Chapter 1. ... First appearance and naive definition Info A. Metric spaces 1.2. Definition of self-similar fractals Info B. Hausdorff measure and Hausdorff dimension Chapter 2. Laplace operator on Sierpinski gasket ґ Info C. Laplace operator and harmonic functions 2.1. ... Apollonian gasket 5.1. ... Integral Apollonian gaskets Info I. MЁ s inversion formula obiu Chapter 8. ...

Next: *.imh and *.qp Extensions Up: IRAF/PROS Files Previous: IRAF Image Arrays . The x-ray data are stored in QPOE files (Quick Position-Ordered Events, *.qp ) rather than image arrays. ... Note that, unlike IRAF images, QPOE files have no associated header file, and are always stored in the current directory, unless explicitly specified otherwise. Non-PROS IRAF tasks can also access QPOE data files in place of image arrays. ... rp110590.qp[pi=2:30] . ... The ROSAT PSPC qp file images are . ...

... Tonight's Sky . ... The Magazine . News . Observing . ... Community . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... elements . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... Некоторые чудеса, связанные с фосфором и свинцом . ... История фосфора . ... Это светится белый фосфор. ... Белый фосфор - твердое кристаллическое вещество, причем в химически чистом виде кристаллы белого фосфора совершенно бесцветны, прозрачны и очень хорошо преломляют свет. ... Поэтому в обычных условиях фосфор внешне очень похож на воск, но тяжелее его (плотность белого фосфора 1,84). ... При 44њ С белый фосфор плавится, а при 280,5њ С кипит. ... Растворяли белый фосфор в бензоле или сероуглероде...

The beam pattern and the polarization characteristics . of the radio telescope RATAN-600 . The Mueller matrix elements was computed via formulas [1]: . ... The BP were computed by the aperture method, proceeding from the fild distribution in the aperture of the primary mirror. The components of the main and cross-polarization components of the electric field in the vertical aperture of the primary mirror was computed in Frenel diffraction approximation. ...

... It may be added, subtracted, divided or multiplied in any way appropriate for ordinary numbers. A mathematical relationship involving known numbers (like 25 or 40) and unknown ones (like x ) is known as an equation . ... To get a solution, one must replace the given equation (or equations) with others, containing the same information but cleaner in appearance. ... If you have an equation and modify both its sides in exactly the same way , what you get is also a valid equation. ...

... Окуляр 5 Element Plossl 32mm (2") . ... Поле зрения 60 градусов . Это самый короткофокусный из 2" окуляров серии 5000 - он предназначен для получения невысоких обзорных увеличений. ... Симметричные (Plossl) окуляры серии 5000 - прорыв в области оптического дизайна в сочетании с обычным качеством исполнения от Meade. ... Компактные цифровые фотоаппараты . Зеркальные цифровые фотоаппараты PENTAX . ... Окуляры PENTAX . ... Copyright PENTAR ї2004-2016. (бинокли, цифровые фотоаппараты, телескопы) . ...

Amanda Karakas One of the most important research fields in astrophysics is the study of the origin of the elements. ... Asymptotic Giant Blanch (AGB) Stars: For low and intermediate-mass stars (with initial masses between about 0.8 to 8 solar masses) the most important nucleosynthesis occurs when stars evolve off the main sequence to the giant branches. ... This indicates that these stars obtained their unusual abundances via mass transfer from a previous red giant star, that has long evolved away. ...

... For example, as pointed out by Perlman et al. (1996b), the lack of a Ca II H & K break strength criterion in the 1 Jy, S4 and S5 samples of BL Lacs, has caused numerous objects to be misclassified as radio galaxies instead of BL Lacs (see also March? Browne 1995, 1996). ... While one may argue that some of these objects fall in the expanded region of the (H & K break strength, equivalent width) diagram that March? et al. (1996) allot to the BL Lacs, several, for example 1 Jy 1308+326, do not. ...

XMLDSIG Working Group Grigorij Chudov, CRYPTO-PRO Internet Draft Serguei Leontiev, CRYPTO-PRO Expires October 7, 2004 April 7, 2004 Intended Category: Informational Using algorithms GOST R 34.10-2001, GOST R 34.10-94 and GOST R 34.11-94 for XML Digital Signatures <draft-chudov-cryptopro-cpxmldsig-00.txt> Status of this Memo This document is an Internet-Draft and is subject to all provisions of Section 10 of RFC2026. ... This document introduces GOST R 34.10-94/2001 signatures as additional methods. ...

... For example, precision of the approximation was calculated for Solar system and 47 Uma star system Kepler orbital elements : Jupiter Saturn 9.537 0.0539 Uranus 19.189 0.0473 Neptune 30.070 0.0086 47 Uma b 2.10 0.032 0.10 3.76 5.83 0.89 47 Uma c 3.60 0 ... rad , rad , rad l, rad 0.0228 1.754 4.801 0.328 0.0434 1.983 5.865 5.591 0.0135 1.291 1.685 2.495 0.0309 2.300 4.636 4.673 Kepler elements for Solar ... Estimation accuracy of disturbing function (h1) expansion is presented. ...

... GALAXY: A galaxy is made up of billions or trillions of stars bound together by their own gravity. ... HELIUM (He): The second element in the periodic table, has 2 protons, 2 neutrons, and is a noble gas. ... Helium melts at -272.2 degrees Celsius, and boils at -268.934 degrees Celsius. ... HYDROGEN (H): The first element on the periodic table, is a gas, and has an atomic mass of 1.00794 amu. ... Hydrogen melts at -259.34 degrees Celsius, and freezes at -252.87 degrees Celsius. ...

Blackholes2 Forum Message . Forums: . ... Whatever.. ... i have a hard time with dark matter. is just too convenient. i also have a hard time with symmetry. it is too pretty." ... How know "dark matter"? ... By definition you have "prediction" as the abc of d "predicts" the abc of e and vice versa.. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...