... A model for the chemical evolution of a disk galaxy is presented. The model reproduces all the basic . ... investigations of the star formation history. ... the galaxyЫand incorporating a delay in the onset of star formation make it possible to model different scenar- . ios for the evolution of a galaxy's luminosity. ... evolution of massive galaxies. ... of reconstructing the star-formation history and galactic luminosity from observations of galaxies at different . ...

INNER POLAR RINGS REGULAR LENTICULAR GALAXIES 1 K. Sil'chenko 2 Sternberg Astronomical Institute, 119992 Moscow, Russia; Isaac Newton Institute Chile, Moscow Branch; olga@sai.msu.su Afanasiev Special Astrophysical Observatory, 369167 Nizhnij Arkhyz, Russia; vafan@sao.ru Received 2003 December accepted February 4 ABSTRACT have investigated a sample of galaxies, mostly with circumnuclear dust lanes orthogonal their major axes, chosen from Hubble Space Telescope Wide Field Planetary Camera 2 images. ...

... Printed in the U.S.A. HIGHLY IONIZED POTASSIUM LINES IN SOLAR X-RAY SPECTRA AND THE ABUNDANCE OF POTASSIUM J. Sylwester1 , B. Sylwester1 , K. J. H. Phillips2 , and V. D. Kuznetsov3 2 Space Research Centre, Polish Academy of ... Troitsk, Moscow, Russia; kvd@izmiran.ru Received 2009 December 5; accepted 2010 January 6; published 2010 January 21 1 ABSTRACT The abundance of potassium is derived from X-ray lines observed during flares by the ...

Cairo, Egypt . Cairo is the capital of Egypt and the largest city in the Middle East. Although Cairo itself is only about 1,000 years old, parts of the metropolis date back to the time of the Pharaohs. ... In the 19th century, one of the city's rulers, Khedive Ismail (1863-1879), sought to transform Cairo into a European- style city. ... Although a housing crisis has been broadcast by the international news media, it is estimated that Cairo may have a surplus of some 1 million housing units. ...

... RECOMMENDED VALUES OF PHYSICAL CONSTANTS AND CONVERSION FACTORS. ... This reference must be included when these constants are used in a context where their full accuracy is important. ... elementary charge (of proton) . ... gravitational constant . ... unified atomic mass constant . ... of electron . ... of proton . ... Planck constant . ... Rydberg constant, m 0 2 m e e 4 c 3 /8h 3 . ... fine structure constant, m 0 e 2 c/2h . ... Bohr radius, h 2 ( pm 0 c 2 m e e 2 ) . ... Bohr magneton, e h /2m e...

... StarCalc Home Page - Downloads . ... File . StarCalc (English version) . ... With minimal configuration, version 5.72 of StarCalc includes the next interfaces: "Horizon", "Horizontal coordinategrid", "Equatorial coordinate grid", "Constellation boundaries", "Constellation lines", "Constellation names", "Star proper names", "Bright Star Catalog", "Deep-sky objects", "Sun", "Moon" and "Planets and satellites" . Plugins for StarCalc . ... Interface to NGC 2000 (plugin + catalog file) . ...

... HOME . ... ABOUT LOMO . ... MICROSCOPES . ... Home Products Microscopes SF-Series SF-100T . ... The SF-100T trinocular stereo microscope includes the same features and accessories as the SF-100B , but also includes the SF-FA photomicrography attachment . ... LOMO's . ... LOMO America, Inc. will repair or replace the defective microscope covered by this warranty free of charge if it is returned, postage prepaid, to LOMO America's Service Center in Prospect Heights, Illinois in its original package. ...

... 2014 . ... MAGNETIC FIELDS IN SOLAR ACTIVE REGIONS V.G.Lozitsky Taras Shevchenko National University of Kyiv, Astronomical Observatory lozitsky@observ.univ.kiev.ua, lozitsky_v@ukr.net Magnetic field measurements in solar active regions carry out on a base of the Zeeman effect. ... TRACKING OF RADIO BURST SOURCES IN SOLAR CORONA BY HELIOGRAPHIC MEANS Koval A.A. 1, Stanislavsky A.A. 1,2, Konovalenko A.A. 1 Institute of Radio Astronomy of NAS of Ukraine 2 V.N. Karazin Kharkiv National University 1 .. ...

АНОНС НАУЧНЫХ КОНФЕРЕНЦИЙ 1998-99 гг. ... An AAS Electronic Announcement Dear Colleague: NASA has approved development of a Wide Field Camera 3 (WFC3) for installation in the HST on the 2002 Servicing Mission. A Scientific Oversight Committee (SOC) is being established to ensure that the broad interests of the scientific community are represented in the development of WFC3. The primary task of the SOC will be to advise the HST Project and STScI in all areas of scientific performance of WFC3. ...

details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713453505 Observations of gamma-ray bursts and a supernovae search at the robotic telescope MASTER V. M. Lipunov ab; V. G. Kornilov ab; A. V. Krylov a; D. A. Kuvshinov b; E. S. Gorbovskoy b; N. V. Tyurina a; A. A. Belinsky a; G. V. Borisov a ... Stellar magnitude >17.8 18.6 ± 0.3 19.4 ± 0.3 Exposure time (s) 45 15 в 30 15 в 30 Comments Upper limit 82 V. M. Lipunov et al. ...

To the Deputy Head of the Administration of Russian Federation President Mr. A.V.Ogarev . ... First the international space station (ISS) Alpha, which is under construction now, will compare to the OS Mir on the amount of information only in 5-7 years. ... Thirdly, the participation of Russian Federation in the international space projects, including work on the international space station (ISS) Alpha, is to be aimed first of all at the providing of Russian interests. ...

The Second U.S. Naval Observatory CCD Astrograph Catalog ( UCAC2 ) Table of Contents 1) Introduction 2) Summary of the Project a) Observations and Instrumentation b) Reductions of UCAC Observations c) Computation of Proper Motions 3) Properties of the Catalog and Important Notes For the User a) Sky Coverage b) Completeness c) Positions, Proper Motions and Error Calculations d) UCAC2 Magnitudes e) 2MASS Photometry f) Non-stellar ... All stars in the UCAC2 have proper motions. ...

include graphics.h #include math.h #include conio.h const double l=10000000; const float V0=5000; const float angle =0.5; const float dt=500; const double G=6.67e-11; const double M=5.98e24; double E; float p; float F; float b; float b_angle ; float S; float x1; float y1; float r; float Vi; int xC; long ...

marked with yelow asterisk are sites that have links to the VSM . Russian/Soviet Cosmonautics History . interesting site (Russian language only) and ABSOLUTELY STUNNING photos! Russian mirror of Mars Pathfinder site . Space Technology Images . big collection of photos and drawings including some rare and exotic . ... excellent site of spaceflight history . ... Astronomy 105 . ... Some interesting things plus a brilliant collection of astronomy and space links. Space Frontier . ...

... All circuit parameters have been presented in a symbolic form. ... To use the program you will need a CIR file (PSpise, DesignLab file) of your circuit. CIR file examples have been enclosured: bpasside.cir, test1.cir, test2.cir, test3.cir, test4.cir, laksamp.cir, bridge.cir, uA741acf.cir, quartz.cir. ... Ideal operational amplifier (nullor) * Nname n1 n2 n3 n4 * * In the ideal op amp data, (n1,n2) represent output nodes, * (n3,n4) represent input nodes (noninverting, inverting). ...

... Space flight . Crew training . ... Baikonur . ... Space camp . Space Hotel . ... Familiarization with the Baikonur Cosmodrome launching and engineering facilities (helicopter panoramic flight is also available on special request and not included in the price) . ... Final Space Crew Medical Check and Space Suit donning . ... Witness a Space Vehicle Launch RESERVATION AND PAYMENT POLICY . ... Services / Baikonur: General description Technical description Shedule of launches Photo gallery Price . ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Февраль 1998 . ... Дата: 10 февраля 1998 (1998-02-10) От: Alexander Bondugin Тема: NASA Says Lunar Ice Rumors Wrong Привет всем! ... Дата: 10 февраля 1998 (1998-02-10) От: Alexander Bondugin Тема: Lectures at JPL on Near-Earth Asteroids Привет всем! ... Дата: 10 февраля 1998 (1998-02-10) От: Alexander Bondugin Тема: Images Of Mars '98 Landing Zone Reveal Strange New Terrain Привет всем! ...

... How can I participate in AAAP to elevate my own interests and contribute in a way that helps advance the club and the future of amateur astronomy? ... Well known to AAAP from her significant role with the Sloan Digital Sky Survey in which Princeton is a key player, Dr. Knapp will speak to us about her research on Brown Dwarfs. ... 2003 ­ A Year of Progress in AAAP Reflecting back over the past year, I am struck by the contributions of many members which continue to solidify our club. ...