... Using the uvby -photometry and proper motion data for about 5500 F stars within 80 pc from the Sun, we have studied velocity ellipsoid parameters and obtained the following results. 1) The sizw of all wllipsoid semiaxes increase systematically for groups of stars with the decrease of both temperature (at constant metallicity) and metallicity (at constant temperature). ... As a result, each of the three parameters - temperature, metallicity and velocity dispersion - is an age indicator. ...

Тема : Хвостатые гостьи 16 (коррекции орбиты) .. Показать сообщение отдельно . ... Сообщений: 19,465 . Коррекция орбиты некоторых периодических комет от 9 июля 2014 года MPEC 2014-N57 .. ... Отправить личное сообщение для Silvester . Найти еще сообщения от Silvester . ...

... Press release for Feb.9, 2001 09.00 (Moscow time) . The "Mir" station and the cargo ship "ProgressM1-5" operations scheduled for 8-9 Feb. completed. The Station and the cargo ship onboard systems checkout performed. The Station is pressurized keeps in spinning mode with the MCS (motion control system) in free drift. The next checkout of the vehicle and the Station onboard systems is scheduled for 9-10 Feb. The Station "Mir" parameters for 8 Feb. - average altitude - 286,9 km; . ...

... We find a transition of LBV star from the LBV instability strip to the region of classical WN for the first time. ... Numerical modeling of the atmospheres of these objects are very important for understanding the evolutionary relationship WR and LBV stars, as well as of the physical causes of LBVs variability. We studied spectra of two very luminous stars in the M33 galaxy - LBV V532 and late WN star FSZ35. ... Bottom: The spectrum of FSZ35 with the final model . ...

... In electron-positron colliders, effect of the lattice modification by opposing bunch focusing on the equilibrium radiation emittance is important at high values of the space charge parameter, so one should correctly evaluate this dynamic radiation emittance of the weak beam, which may differ a lot from the nominal emittance, already in the linear beam-beam force model. ... The linearized beam-beam force is equivalent to focusing insertion in linear lattice of the collider. ...

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

... Ballistics, navigation and flight control of the spacecraft, going to the L2 point of Sun-Earth system. ... and calculation algorithms have been developed: - an algorithm, building nominal trajectories for one impulse flights to the L2 point of Sun- Earth system, including a Moon swingby maneuver or not. - an algorithm, calculating corrections of spacecraft trajectory needed for the flight from Earth to halo orbit and for stationkeeping of the spacecraft moving in halo ...

Organisers: Philippe Lebacque (Laboratoire de Math matiques de Besan on ) , Michael Tsfasman (CNRS, Laboratoire Poncelet, Institute for Information Transmission Problems) , Alexey Zykin (Laboratoire Poncelet, State University Higher School of Economics, IITP) . ... General Information . ... The classical differential Galois theory studies symmetry groups of solutions of linear differential equations. ... Poncelet Laboratory web page . ...

The paper presents the 'Neptune-ME' information display system (IDS) as a spaceman console (SC) of the descent module of the 'Soyuz -TMA' piloted transport spaceship, and the integrated console (IC) of manual control loop for module equipment in the Russian segment of the 'Alpha' international space station. ... to control spaceship systems; . ... An integrated control console (ICC) which is hardware and software compatible with a IBM PC, is suggested as a basic console for the manual control loop. ...

... 0,50-0,59 (0,50-0,59) µm . ... Swath Width . ... at end of visibilty area . ... Visibility Area Width . ... Ground Resoultion in Nadir: . along swath . ... across swath . ... Ground Resolution at End of Visibilty Area: . ... 200 lines per second . ... at least 200 . Ground resolution corresponds to normal flihgt altitude 650 km. For more information send a mail to: info@sputnik.infospace.ru . ...

... Первая страница Назад Продолжить Последняя страница Обзор Изображения . Публикации с ключевыми словами: Галактика - звездная астрономия . Публикации со словами: Галактика - звездная астрономия . ... Дальний рукав в 3 кпк от центра . Лекции по Галактической Астрономии. ... Стрелец A*: быстрые звезды вблизи центра Галактики . ... KINO.RU - фильмы, кино театры, кино, расписание кино в г. Москва | ... Дизайн квартир и дизайн интерьера . ... Нужно рекламное агентство? ...

Chair of solid state physics . ... Laboratory practical training on the structural analysis for 3rd year students of the Solid State Physics Chair of MIPT . ... X-ray diffraction methods in materials research . Debye method: determination of lattice parameters, identification of crystal phases . ... X-ray phase analysis: computer processing of X-ray diffraction spectra, identification of crystal phases using ICDD database . ... X-ray powder diffraction: qualitative phase analysis. ...

... In laboratory the design and a manufacturing techniques mirror aspherical optics are developed ("fokon", ellipsoid, aspherical mirror).Such optical elements are made of widespread aluminium alloys on the standard equipment without use diamond turning. ... Using: optical blocks of not image optical devices for transitions, collimation, focus (concentration) radiations in a wide spectral range from UV to IR. Focusing and collimation of light; . ... circle aperture/ring aperture; . ... Back Forward . ...

... Thus all regions of the 0.94-2.50 micron wavelength range accessible from Mauna Kea can be recorded using five fixed angle gratings. ... Grating Angle . ... Efficiencies for the NIFS gratings are shown above. The NIFS spectrograph uses a Bouwers collimator and a refractive camera. ... With these assumptions, the NIFS system efficiency including the Gemini telescope optics but excluding the transmission of the adaptive optics system is about 0.17 e - /photon at J , and 0.22 e - /photon at H and K . ...

The Integrated Information Display System for the Soyuz-TMA and the Integrated Console of Manual Control Loop for the Russian Segment of the International Space Station Yurii Tiapchenko, deputy Chief Designer and head of the Division of Onboard Information Display Systems (1993-2002) at the Specialized Experimental Design Bureau of Spacecraft Technology and Chief Designer at the NTC "Alpha-M". ... The tasks of the spaceship IDS are provided by the Simvol and KL-110 display systems. ...

JSC Celebrates 40 Years of Human Space Flight . America's Nerve Center for Mission Operations . ... Were flight operations to be part of the design center, MSC in Houston, or part of the operations center at Kennedy Space Center in Florida where Mercury controls were housed? ... Discussions among MSC management quickly recognized that operations requirements would be a critical factor in the design of all manned spacecraft," said former JSC Director Dr. Christopher C. Kraft. ...

... Configuration The dictionary accepts one obligatory parameter - RULES, which has to be set to the file describing parsing rules and output recipes. ... Each non-empty line is either a comment (when started with '#' symbol), or a conversion rule, and in the latter case has to contain whitespace-separated pattern and output recipe. Currently, pattern has to match the _integer_ (one, two or more) number of input tokens; they will be replaced with a single one. ...

... Bad Astronomy . ... Mad Science . ... Universe Today . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... type 1a supernovae seem most useful . ... This is a bright, massive star that explodes after fusing all the light elements in its core. ... That means we can calculate how far away it is. ... This is exactly what we are trying to do with these supernovae; look far enough away that any deviations from flatness of the Universe can be seen. ... Phil Plait . ...

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. ...

The new view on the population of Galactic open clusters A.E.Piskunov1, N.V.Kharchenko2, S.RЖser3, E.Schilbach3, R.-D.Scholz4 1 2 3 4 Institute of Astronomy, Moscow, Russia Main Astronomical ... Observatory, Kiev, Ukraine Astronomisches Rechen-Institut, Heidelberg, Germany Astrophysikalisches Institut Potsdam, Germany What are open clusters and what do they teach us Groups of Population I ... Cluster complexes: OCC-1 = Gould's Belt cluster complex? ...