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. ...

... Even though the DoD would ultimately select senior Air Force officials, US Navy oceanographers and Air Weather Service officers as shuttle payload specialists, MSEs would be the first personnel from an American military programme to go into space. ... One Air Force officer, Maj. ... Jacobson was concerned about shuttle launch delays and wanted the MSEs to understand that his mission, i.e., the launch of national security payloads, dwarfed their mission, flights in space by Air Force personnel. ...

The possibility of recovery of the vertical distribution of the magnetic field in umbrae by line width differences S.G. Mozharovsky Ussuriysk Astrophysical Observatory of FEB RAS, Ussuriysk, Russia sw@newmail.ru Abstract. This article studies the possibility of recovery of the vertical distribution of the magnetic field in the photospheric layers of sunspot umbra by the Difference of the Line profile Absolute Widths of neutral zirconium ? ... 2) Line profiles for cold models have extended wings. ...

... 14 июня 2000 . ... Ломтик Вселенной от 2dF . Благодарности: Matthew Colless ( ANU ) et al. , 2dF Galaxy Redshift Survey . Пояснение: Что можно увидеть, глядя сразу на 100000 галактик? ... Благодаря их работе теперь можно увидеть распределение галактик во Вселенной на расстояниях до 4 миллиардов световых лет. На приведенной выше 2dF-карте видны огромные кластеры , длинные нити и гигантские пустоты с характерными размерами более 100 миллионов световых лет . ...

... Главная Астрономия Фотографии Рекорды Форум Гостевая книга . Азбука . Звездного неба . ... Фотографии звездного неба . ... При создании сайта использованы материалы из книги Данлоп С. "Азбука звездного неба" 1990г. Фотографии взяты из . ... Азбука звездного неба / Рекорды и рекодсмены / Самый яркий квазар . Самый яркий квазар (и первый, который был идентифицирован как квази-звездный объект), известен по номеру в Третьем Кембриджском каталоге радиоисточников: 3C 273 . ... История Азбуки. ...

... Space activity at the beginning of XXI-st Century view from inside G.M.Chernyavskiy STC for Earth Space monitoring of FSUE , Russia 1. The systemic approach in astronautics Everyone who has linked his life with astronautics and those who are interested in the future of the inhabitancy medium and its expansion up to cosmic scales, are troubled about the current state and development of space activity in the World and in the Native Land of the first artificial Earth satellite (AES). ...

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