RTT150 . Russian-Turkish 1.5-m Telescope . ... Telescope has two main foci (Cassegrain and Coude ) and allows to use six optical systems based on Ritchey-Chretien system with a common main mirror . At present scientific observations are being performed at the Cassegrain focus in main optical scheme with focal ratio of 1:7.7. ... flat . ... To use the Coude focus the removable flat diagonal mirror is also needed in the crossing point of declination axis and main optical axis of telescope. ...

Authors: T.V. Borkova , V.A. Marsakov , . ... It is found that dispersions of spatial and kinematics characteristics of field stars change abruptly when the metallicity crosses the boundary [Fe/H] -0.95 . ... По опубликованным прецизионным наземным и спутниковым измерениям собственных движений, компилятивным лучевым скоростям и фотометрическим расстояниям вычислены компоненты пространственных скоростей и элементы галактических орбит для 174 переменных звезд типа ab RR Лиры околосолнечной окрестности. ...

... Maxim was one of the leading analysts of Russia space activities, those who set the basis for the open independent analysis of then-Soviet space program. q In the early 1990s the small blue paperback book became a real breakthrough. In the time being, almost everything is allowed; in that time, even the title of the book - The Military . ... I believe that to open Maxim's files and archives for the experts and Russian space program enthusiasts would be a best thing we can do in memoriam. ...

... Born: September 14, 1961, Moscow, Russia . ... Phone: (7-495) 951-7993 . ... Astronomical data bases, catalogues, large data sets, virtual observatories, scientific data mining. Binary stars, fundamental stellar parameters, history of star formation, stellar evolution. Galaxy structure, classification of stars, interstellar extinction, calibration of astrophysical quantities. ... Binary stars and the IMF . ... International Astronomical Union since 1994 . ... Binary star database . ...

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... Sky Telescope editor Robert Naeye presents a whirlwind and colorfully illustrated trip through this amazing scientific story. ... Bob is editor in chief of Sky Telescope magazine and SkyandTelescope.com , and a proud member of the American Astronomical Society, the Astronomical Society of the Pacific, the Amateur Telescope Makers of Boston, and the Astronomical Society of Harrisburg, which is based near his hometown of Hershey, Pennsylvania. ... Copyright (c) Amateur Telescope Makers of Boston, Inc....

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии > Атласы Луны - онлайн, PDF и пр. компьютерные . ... Просмотр полной версии : Атласы Луны - онлайн, PDF и пр. компьютерные . ... R?kl-based Index to the-Moon Wiki (http://the-moon.wikispaces.com/Rukl+Index+Map) . ... Список карт и атласов Луны (http://the-moon.wikispaces.com/Lunar+Maps), когда-либо сделанных (есть ссылки на загружаемые файлы, бошльшей частью исторические карты - весьма интересно) . ...

NEWS FEDERATION rus ENCYCLOPEDIA rus HISTORY rus MIR STATION RUSSIAN . ... Cosmonauts. ... Companies. ... Space Science . Heroes Of Space Remember . Military Space . History . ... Based on commercial space launchers, U.S. companies compete for participation in the ABM program. Space Forces To Cooperate With Moscow Region . ...

The British Isles lie off the north-west coast of continental Europe. They are made up of Great Britain (England, Scotland and Wales) and Ireland (Northern Ireland and the Independent Irish Republic) and some 5,000 smaller islands. The total area of the British Isles is 121,000 square miles (320,00 square kilometers). ... There are no high mountains in Britain. ... On the other hand the north-west of Scotland and the Scottish islands are among he most sparsely populated areas in Europe. ...