... PUL2 catalog contains original absolute proper motions of 59646 stars in 149 fields with galaxies. ... Mean errors of relative proper motions in PUL2 catalog is 5.5 mas/year. ... The external mean error of one relative proper motion of a bright star of PUL2 catalog is 9 mas/year for both of coordinates. ... After issue of UCAC2 catalog, we decided to improve accuracy of proper motions, using Pul-3 coordinates (of 1950s) as the first epoch, and UCAC2 coordinates as the second epoch. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... des interviews, des portraits . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Des sources hydrothermales fossiles sur Mars . ... Pour en savoir plus sur ces sources hydrothermales et la recherche de la vie sur Mars, guettez le prochain num†йro de "Ciel & Espace", en kiosque le 24 novembre. ...

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . The Imaging Source GigE . ... Поиск . Сообщения за день . ... Botinok . ... Сообщений: 2,784 . ... Отправить личное сообщение для Botinok . Найти еще сообщения от Botinok . ... Измени описание - типа: на борту порт Гигабит Эзернет! ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. ...

Subject, Object and Problems of Astrophysics. Practical and Theoretical Astrophysics. ... Visual Telescope; Problems Which Are Solved with the Its Help. ... Resolution of Telescopes. ... Effectiveness of Telescope in Respect of Resolution. ... Optical Power of Telescopes for Star-like and Extensive Objects. Boundary Magnitude. Reasons of Light Dissipation in Telescopes. ... Spectral Instruments in Astrophysics. ... Basic Photometrical Ideas, Magnitudes and Their Measurement. ...

... Optical constants of Fe 2 O 3 in the infrared spectral region. ... Optical constants: . amorphous Fe 2 O 3 . ... The Reflectance of polarized radiation at the incidence angle 12 deg was measured in the range from 1400 to 200 cm -1 for monocrystalline hematite (alpha-Fe 2 O 3 ) and amorphous Fe 2 O 3 samples. Special technique applied allowed to reduce the relative errors downto 1% for the reflectance values of 0.005-0.8. The optical constants were obtained by the Kramers-Kronig method. ...

... Pre-university education . ... The NEICON consortium provides free test access to three platforms of electronic resources of McGraw-Hill Education company: . ... ACCESS ENGINEERING (www.accessengineeringlibrary.com ) is the largest platform in the area of technology and engineering science. It contains over 250 key items as well as interactive graphs, tables and video materials. ... ACCESS MEDICINE (www.accessmedicine.com) is the basic medicinal platform of McGraw-Hill Education. ...

... astro-ph . ... Statistical Characterization of the Chandra Source Catalog . ... The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of ~0.75% of the entire sky, using data from ~3,900 separate ACIS observations of a multitude of different types of X-ray sources. ... In addition to these traditional catalog elements, for each X-ray source the CSC includes an extensive set of file-based data products that can be manipulated interactively. ...

Earth Resource Mapping . ER MAPPER 4.0 . ER MAPPER - наиболее развитый пакет программ по обработке изображений. ... В пакете ER Mapper впервые используется концепция алгоритмов, позволяющих обрабатывать растровые изображения совместно с векторными данными из ГИС и табличными данными из реляционных баз данных. Применение динамических связей с ГИС и СУБД позволяет оперативно использовать все данные об объекте, независимо от формы и формата их хранения. ... Алгоритмы 11 . ... Типы данных 16 . ...

. During 10 years, five high-energy cosmic rays (plotted as orange asterisks) came from one small part of the sky near the star Merak in the Big Dipper. Astrophysicists suspect their source is a merging pair of galaxy clusters (blue). Progressively more distant galaxy clusters appear in light blue, green, and red, while the gray shading shows the positional error for each of the five cosmic-ray detections. G. R. Farrar, A. A. Berlind, D. W. Hogg (New York University)

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New satellites of Saturn - Sources of the data . Go to last update (bottom of this page) 2000 October 25 (IAUC 7512) S/ 2000 S 1 - obs , eph (so1001) S/ 2000 S 2 - obs , eph (so1001) 2000 October 25 (IAUC 7513) S/ 2000 S 3 - obs , eph (so1001) S/ 2000 S 4 - obs , eph (so1001) 2000 November 18 (IAUC 7521) S/ 2000 S 5 - obs , eph (so1001) S/ 2000 S 6 - obs , eph (so1001) 2000 December 7 (IAUC 7538) S/ ...