... Previous: Why Indexing the Sky is Desirable . ... An alternative algorithm, proposed here, is based on covering the sky with pixels of approximately equal area, and assigning a unique integer to each pixel. ... For each table, the pixel code value corresponding to the central position (RA, Dec) of each source is computed and inserted into a new column called PCODE. ... This cannot be the primary index of a table since PCODE values are not necessarily unique: one pixel may contain more than one...

... Поиск контактной информации . Расширенный поиск . ... О Сети "Наука" . ... Правила Сети "Наука" . Схема линий . Логическая схема . ... Правила Сети RBNet . Правила Сети ННЦ . Описание Сети СО РАН . ... Ionospheric station "Yakutsk" . ... Magnetic observatory "Yakutsk" . ... Copyright 2006-2009 Центр информационных технологий ИКФИА СО РАН. ...

... The ChaMPlane survey is being conducted at the Harvard-Smithsonian Center for Astrophysics. The ChaMPlane team is conducting a "Bulge Latitude Survey" (BLS) to measure the latitude distribution of faint X-ray point sources in the region b = +/- 1.5њ, l = +/- 0.35њ centered at l = 0њ. ... In Chandra cycle 7, two-thirds of the region below the galactic plane were observed (BLS-Sa); observations of a similar-sized region above the plane (BLS-Na) are planned for cycle 8 (summer 2007). ...

Фотографии и видео - внизу страницы. ... Архив фотографий из похода - файл называется 08_kavkaz.zip . Размер файла 593 Мб . ... Например 20100806_124315.jpg - 6 августа 2010 года, 12ч 43м 15сек. ... Разрешение кадра 1280x720 пикселей, размер файла 1.66 GB . ... Файл в формате mpeg-2 (как DVD). kavkazHD.avi . Разрешение кадра 1280x720 пикселей, размер файла 655 Mb . ... Разрешение кадра 720x576 пикселей, размер файла 668 Mb . ... Разрешение кадра 720x400 пикселей, размер файла 296 Mb . ...

This form calculates which transits of the 1039 known transiting exoplanets are observable from a given location at a given time. Specify a time window, an observing location (either an observatory from the list or choose "Enter latitude/longitude" at the end of the list), and optionally any filters (e.g. minimum transit depth or elevation). The output includes transit time and elevation, and links to further information about each object, including finding charts and airmass plots. ...

... Milky Way . ... Map of the Milky Way (based on data from NASA's Spitzer Space Telescope) showing its two major stellar arms and central bar. ... ТљIn written science fiction, one often encounters another navigational convention, where towards the Galactic Centre is described as т??Corewardт??, away from the Centre towards the rim of the Milky Way is т??Rimwardт??, objects in the direction of the Galaxyт??s rotation are т??Spinwardт??, while objects in the opposite direction are т??antispinwardт?? ...

J/AstL/vol/page SAI Open Clusters Catalog (Glushkova+, 2009) ================================================================================ Automated search for star clusters in large multiband surveys. ... Color excesses E(B-V), distance moduli and ages were determined for 141 new and 27 known, but poorly studied clusters. We present the Sternberg Astronomical Institute Open Clusters Catalog (SAI OCL Catalog) of coordinates, diameters and main physical parameters of these clusters. ...