... The distributions of orbits eccenttricities and of angular momenta for the halo stars and the old disk population are considered. The distributions have gaps separating the halo from the disk and dividing the halo population into three groups. ... Рассмотрены распределения звезд гало и старого населения диска по величине эксцентриситета орбит и угового момента. Распределения имеют провалы, отделяющие гало от диска и делящие населения гало на три группы. ...

НОВОСТИ ФЕДЕРАЦИЯ ЭНЦИКЛОПЕДИЯ ИСТОРИЯ СТАНЦИЯ МИР ENGLISH . ... Биографич. энциклопедия . ... КОСМОДРОМЫ . ... Космодромы . Космодром Китая. ... Предназначен для пусков боевых баллистических ракет, отработки элементов космической техники и запусков искусственных спутников Земли. ... Long March-1 (аварийный пуск) . ... Long March-1 (суборбитальный) . ... FB-1 (суборбитальный) . ... FB-1 . ... Под эгидой Федерации космонавтики России. А.Железняков , 1997-2009. Энциклопедия "Космонавтика". ...

Description and Technical Details . In 1980s two medium-size horizontal solar telescopes 50/35000 cm with large spectrographs Czerny-Turner made by Carl Zeiss Jena were installed in the Ondњejov observatory. The Czerny-Turner-spectrographs in the Ondњejov observatory called HSFA1 and HSFA2 according to the German name Horizontal-Sonnen-Forschungs-Anlage ("horizontal device for solar research") have been explored for more than two decades. ... Diffraction grating - Richardson, Spectra-Physics . ...

... Operations of the Hubble Space Telescope (HST) require the creation of stable and e#cient observation schedules in an environment where inputs to the plan can change daily. A process and architecture is presented which supports the creation of e#cient and stable plans by dividing scheduling into long term and short term components. ... The short term scheduler builds e#cient week long observation schedules by selecting observations which have plan windows open within the week. ...

... Spherical aberration, coma, and astigmatism are also easily observed using the star test. ... Off-axis images are complex. ... Fig. ... Diffraction by a circular aperture as a function of defocus for no aberration Airy Disk 1 wave defocus Less than 1 wave defocus Fig. ... Diffraction by a circular aperture as a function of defocus for third-order spherical aberration Paraxial Focus Small distance inside paraxial focus Moderate distance from marginal focus Immediate neighborhood of marginal focus Fig...

... 1980 . ... A three-stage version of China's CSS-X4 intercontinental ballistic missile is being developed for various space applications. ... The rocket - to be known as "Long March 3"- has four gimbal-mounted engines in the first stage developing a com?bined thrust of some 280 tonnes. ... Four small gimbal-mounted motors provide thrust-vector control. ... The third stage, which employs LO 2 /LH 2 propellants, has four gimbal-mounted thrust chambers. ... CHINESE ASTRONAUTS. ...

Molniya Triplane Aircraft . At present NPO MOLNIYA is working not only in the space field but also on aircraft engineering. ... Considering this NPO MOLNIYA has chosen a "triplane" aerodynamic scheme stipulating in comparison with traditional schemes the essential increase of flying safety and fuel economy of its aircraft. The triplanes have advantages of canard and classical schemes, but are free from their faults. ... Molniya-1 . ... Heracles Triplane and Aerospace Systems . ...

... Printed in U.S.A. AN EXTRA LONG X-RAY PLATEAU IN A GAMMA-RAY BURST AND THE SPINAR PARADIGM V. Lipunov1, 2, 3 and E. Gorbovskoy 1, 2, 3 Received 2007 May 3; accepted 2007 June 25; published 2007 August 6 ABSTRACT The recently discovered gamma-ray burst GRB 070110 displayed an extraordinar y X-ray afterglow with Xray radiation--i.e., an X-ray ... 2006; Wang & Meszaros 2007). ... It is followed by a slow collapse (the magnetic field is weak), which results in a weak X-ray burst. ...

Добро пожаловать, Гость . ... Общероссийская неделя "Астрономия на тротуаре" - 15-17 апреля . ... Астрономия и общество (Модераторы: ivanij , Oleg Tuchin ) ? Маленький вопрос . ... 0 Пользователей и 1 Гость просматривают эту тему. Гость . 17.08.2001 [14:01:08] ? Есть форма http://www.jgiesen.de/astro/astroJS/rsTable/index.htm , подскажите пожалуйста для чего служит список рядом с временем сумерок ? ... Последнее редактирование: 01.01.1970 [02:00:00] от 1011560400 ? ...

... Learning set is formed on basis of the Taken' algorithm. ... For 10, 100, 200, 300 day forecast the time lag was correspondingly = 10, = 100, = 200, = 300. ... For every forecast (10, 100, 200, 300 days) ANN started k = 10 times. ... On figure, 1 it is shown the MAE and RMS statistics for 10-, 200- and 300-day forecast for Xp : M AE = 1 n i=n |f orecastav erag ei - realv aluei |, ... i=1 139 RMS 300 MAE 300 RMS 200 RMS 10 MAE 10 MAE 200 Figure 1: 10, 200, 300 day statistics for Xp forecast. ...

IVS name -- the 8 letters long name of the source adopted by the International VLBI Service for Geodesy and Astrometry . This is either IAU B1950 name of a common name.

... The quench rate is varied over 4 orders of magnitude. ... The setup Sample geometry Sample holder Thermal cycling Challenges ·Measuring cooling rate at T=TC ·Reproducible cycles within several decades of cooling rates ·No electrical connections during transition time Quench time: Q = -TC (dT/dt| T=TC) -1 Magnetic fields The effect of an applied orthogonal magnetic field on trapping rate is studied. ... A minimum is expected at zero net field. ... References [1]T. W. B. Kibble, Phys. Rep. ...