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. ...

Russian Space Science Internet (RSSI) Project has been established in April, 1993 after joint decision of Russian co-chairmen of Working Groups on Space Research and NASA to improve cooperative activities under the Agreement Between the United States of America and the Russian Federation Concerning Cooperation in the Exploration and Use of Outer Space for Peaceful Purposes (1992). ... NASA PSCN provides the telecommunications infrastructure from NASA to Space Research Institute RAS. ...

... part 2 | ... Part 1 . The new concept of formation and development of the Solar system. ... Thus, the initial pulse of the rotation of a protosolar cloud of the solar system was determined as a result of the diversion of a part of the moment of the rotational pulse of the Galaxy. ... Besides this new approach to the pre-solar system as a system of the destroyed vortex structure, we can understand now a number of other peculiarities of the Solar system's structure. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit†йs . ... des interviews, des portraits . les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des conseils pour d†йbuter et pratiquer l'astronomie . des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil LтАЩalunissage dтАЩApollo 11 reconstitu†й . ...

... This document outlines the steps needed to install Apache onto a TPF system. ... Releases of the Apache server are compressed into a "tarball" file which must be downloaded to your PC. ... Files of concern include shell scripts and src/Configuration. ... os/tpf/TPFExport . ... Add/remove mod_ xxx .o files so they correspond to the mod_ xxx .o lines in your src/Configuration file. ... Copy the sample linkhttp.dlm file from the src/os/tpf/samples directory to your Apache src directory on OS/390 UNIX. ...

J2000.0 coordinates -- source coordinates in J2000.0 epoch: right ascension and declination. Currently, the proper motion is assumed to be zero for all sources.

... 000, 1­12 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...

... ФОТОГАЛЕРЕЯ ПОЕЗДОК В САО . Лето 1998 года . Arkhyz altitude=1700m . Arkhyz altitude=2000m . Arkhyz altitude=2100m . Arkhyz altitude=2500m #1 . ... Arkhyz altitude=3000m . Arkhyz altitude=3050m . ... Copyright 2001 Игорь Чилингарян . ...

... Сегодня: 10 апреля 2016 г. ParallelGraphics разработала систему создания трехмерных интерактивных компьютерных тренингов (CBT) для Европейского космического агентства. Новое решение позволит Центру обучения космонавтов создавать обучающие материалы качественно нового уровня, благодаря использованию в них трехмерных интерактивных визуализаций. ... ParallelGraphics Virtual Training Editor (VTE) - это инструмент для создания трехмерных обучающих приложений. ...

... Любителям астрономии . ... Проект LFVN . ... История сайта ?Астрономия и Телескопостроение? начинается с 1999 года, когда в сети Интернет была опубликована любительская страница ?Для тех, кто не может равнодушно смотреть на небо? с информацией об отечественных производителях телескопов. ... Мы приглашаем любителей астрономии и астрономов-профессионалов для сотрудничества как для работы над сайтом, так и для участия в различных инициативных проектах, о которых вы можете узнать на его страницах. ...