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. ...

The 2dF QSO Redshift Survey (2QZ) . ... Before jumping into all the finer details of teh survey, a brief non-astronomer's guide to redshift surveys is available. ... The primary scientific aims of the QSO survey are: (1) to obtain the primordial fluctuation power spectrum out to COBE scales, (2) to determine the rate of QSO clustering evolution in the non-linear and linear regimes and hence obtain new limits on the value of and the bias parameter, (3) to apply a powerful geometric method to measure . ...

... Space flight . ... 23.11.2006 . A flight aboard the IL-76-MDK flying laboratory for microgravity simulation is planned on November 23, 2006 . ... A flight aboard the IL-76-MDK flying laboratory for microgravity simulation is planned on October 19 - 20, 2006 . ... A flight aboard the IL-76-MDK flying laboratory for microgravity simulation is planned on September 21, 2006 . ... A flight aboard the IL-76-MDK flying laboratory for microgravity simulation is planned on July 27, 2006 . ... 15.12.2005 . ...

... Солнечные и гелиосферные возмущения, приведшие к сильной магнитной буре 20 ноября 2003 года. ... Для анализа взят интервал с 15 октября по 21 ноября 2003 г., за который произошло 11 солнечных вспышек рентгеновского класса выше X и 3 геомагнитные бури с Dst Таблице (MSWord) . ... Наблюдения мощных активных областей в октябре-ноябре 2003г. в микроволновом диапазоне волн на РАТАН-600. MSWord 464Kb) . ... Солнечные и гелиосферные явления в октябре-ноябре 2003г.: Причины и следствия ; Космич.Исслед. ...

... Moon Phase below . ... ARTICLE: Why the moon always shows us the same face . ... Before you continue reading, you should know that this was not always the case, i.e. the Moon once was rotating with respect to the Earth, so that on every night a terrestrial observer (if there was one, because this was long, long before mankind appeared on our planet, and even before any major animals had appeared) saw another face of the Moon. ... Figure 1 (not to scale) shows how we can imagine the system Earth-Moon...

Space Policy 1994 10 (2) 115-120 . ... This paper analyses Russia's view of its involvement in international space cooperation and the Western concerns associated with this. In the current economic and political situation the Russian administration and space industry are eager to take part in all kinds of international space activity, which is seen as an opportunity to sustain the country's scientific and technological potential. ... 2 Russian interest in international space activity . ...

... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...