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. ...

. Начало | Зеркало | Реклама | Анекдоты | Имена | Отчества | Календарь | Новости | Фильмы | Стихи | Фото | Песни | Сайты | Альбомы | Архив . Искусство | Семья | Финансы | Медицина | Военные | Наука | Спорт | Государство | Бизнес | Техника . Регистрация . Вход . Поиск . Сегодня 9 Апреля Суббота a б в г д е ж з и й к л м н о п р с т у ф х ц ч ш щ э ю я a b c d e f g h i j k l m n o p q r s t u v w x y z . Биография . Фотографии [0] . Тройня в 55-летнем возрасте . Посетило:393 . Ливерпульская версия Памелы

... Здесь я собрал личные названия объектов глубокого космоса (Deep-Sky). В графе русские названия я указал названия принятые у нас в России, а в графе английских названий те, что приняты на западе. ... Отр. тум. - отражательная туманность . Пл. тум - Планетарная туманность . ... Галактика. ... Группа галактик . ... Звездное скопление . ... Шаровое скопление . Русское название . Английское название (перевод) . ... Гантель . ... Cooling Tower (холодильник) . ... Кольцо . ... Малая Гантель . ...

... Multiexposition 34 images Sun 1/1000 sec f/22 and 1 image background. ... It shows position of the Sun on the sky in the same time of a day during one year. Analemma - a trace of the annual movement of the Sun on the sky - is well known among experts of sun-dials and old Earth's globes as a diagram of change of seasons and an equation of time. ... Previously, the position of the Sun on the sky was calculated with computer as well as optimal moments of time for taking each of the exposures. ...

... In the course of the BURAN orbiter development, suborbital and orbital launches of BOR-4 and BOR-5 flight vehicles have been produced for aerodynamic analysis and working capacity of thermal protection structures verification. ... The flights of the SPIRAL prototype and BOR-4 and BOR-5 flying vehicles have allowed not only to speed up the BURAN orbiter development, but also to justify the choice of the aerodynamic scheme of the orbital stage of the advanced MAKS aerospace system. ... Buran Orbiter ....

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