Estimating the NEO Population and Impact Risk: Past, Present and Future . ... Since most of the risk resides in the largest impactors, finding that fraction of the largest bodies, and that none of them has a significant chance of impacting in the next century or so, "retires" more than 90 % of the impact risk, including most of the risk of a globally catastrophic impact event. ... In the mid-size range, from ~150 m to ~1 km, the main risk is from tsunami generated by an ocean impact. ...

... Сегодня: 10 апреля 2016 г. Гигантский метеорит, вызвавший массовое вымирание живых существ на планете 65 миллионов лет назад, нанес наибольший урон Северному полушарию. ... Авторы нового исследования решили проверить, было ли вымирание наннопланктона на Земле равномерным. ... По мнению исследователей, столь плачевные последствия для Северного полушария связаны с тем, что при падении метеорита именно в северные воды было выброшено наибольшее количество тяжелых металлов, токсичных для живых организмов...

1,2 - Modifyted Richter-Slefogt Camera (355mm, 200 mm) The system was designed by V.Yu.Terebizh in 2001 (terebizh@crao.crimea.ua), and then has been made by Gennadiy Borisov . ... Very Wide Field Camera near Kislovodsk: MASTER WFC-Kislovodsk . Up to 1200 square degrees up to 13 m. Very Wide Field Camera near Moscow (40 x 60 square degree) (CCD 1392 x 1040 pix, Sony). ... This system can discover and measure satellites and space refuse parameters to within 0.1 ang.sec. precision. ...

... Главная Астрономия Фотографии Рекорды Форум Гостевая книга . Азбука . Звездного неба . www.astro-azbuka.info . Фотографии звездного неба . Статьи по астрономии . Ваш путеводитель в мире астрономии . ... При создании сайта использованы материалы из книги Данлоп С. "Азбука звездного неба" 1990г. Фотографии взяты из . ... Азбука звездного неба / Фотографии на тему астрономии / Сатурн / Диона - ведомое полушарие . ... Диона - ведомое полушарие . ... Информация о фотографии . ...

Wide-angle telescopes for photometry and polarimetry in optical and infrared ranges . ... Investigation of the Earth’s atmosphere, comets, interplanetary and interstellar medium with brightness and linear polarization measurements of extended sources and sky background in optical and infrared spectral ranges. ... The devices are small diameter telescopes with CCD-detectors for optical and infrared spectral range with spectral and polarization filters. ... 15-cm telescope with cooling down to 80 K . ...

. Фотогалерея . Исследование Солнечной Системы - Комета McNaught 2007 . Фотогалерея . Яркая комета McNaught 2007 . На главную . Предыдущая . 22 . Южное полушарие Земли . 24 . Следующая . Предыдущая . 22 . Южное полушарие Земли . 24 . Следующая . Фотогалерея ... 21 22 23 24 . На главную . Поиск информации на сайте: . 2005 - , Проект "Исследование Солнечной системы" . Открыт 15.12.2005, E-mail: lobandrey@yandex.ru .

Вверху: изображения короны и переходного слоя Солнца (спутник SOHO) . ... Новый всплеск активности начался на Солнце в прошедшие выходные. ... Нынешний всплеск активности является пятым, если считать от марта 2009 года, когда на Солнце впервые появились новые магнитные пояса. ... В северном полушарии Солнца в эти дни можно наблюдать красивейшее зрелище - настоящее кольцо из активных областей, опоясавшее Солнце параллельно экватору на широте около 25 градусов. ...

... Satellite data ] . SMIS ] . ... the satellite tracking in the whole upper hemisphere using previously calculated satellite coordinates . tracking accuracy: 0,5 degree . ... power supply: single phase, 220 V, 50 Hz . power consumption: less than 800 Wt . weight: less than 250 kg . permissible ambient temperature: -50oC to +50o C . permissible wind speed: work - 22 m/s, limit - 40 m/s. Back to SMIS Home Page . ...

Pulkovo NEO Page . Central Astronomical Observatory at Pulkovo . ... Control of Observations . ... NEA Accuracy Estimation . ACCURACY OF THE WORLD NEA OBSERVATIONS . Pulkovo method of accuracy estimation was applied to NEA observations. ... 2005 . 2006 . ...

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

... GSAOI Home . ... Science . ... The Gemini South Adaptive Optics Imager (GSAOI) is the near-infrared camera that will be used with the Multi-Conjugate Adaptive Optics (MCAO) system on the Gemini South 8 m diameter telescope . ... GSAOI will address the following diverse list of science problems that extends from studies of nearby low mass stars to studies of distant forming galaxies: . Low mass stellar and substellar mass functions in young star-forming regions such as the Orion Nebula Cluster . ...

... Eyepiece Specifications . Aperture Diameter (inches) . user input . Eyepiece focal length . ... Focal Ratio . ... Magnification . ... Focal Length (inches) . Eyepiece Apparent FOV . ... Focal Length . ... True Field of View . ... sq. inches) . ... Enter values for the "user input" blocks - then press the "Calculate" key . Eyepiece Apparent FOV Table - A listing of popular manufacturers eyepieces and their apparent field of view's (FOV). ...

Next: Dark current and cooling Up: CCD Scientific Performance Previous: Particle Background Rejection . ... A standard TV format CCD is only 15mm across its diagonal, and hence substantial effort has had to be expended to increase the size of individual chips, and to develop techniques for mosaicking many chips, efficiently to cover the focal plane areas. ... This aspect alone hints at the complex trade-offs involved in the design of a CCD focal plane. ...

Surface-layer turbulence measurements with lunar scintillometer Idea of the method Hardware & software Campaigns & results New horizons Andrei Tokovinin NOAO/CTIO Kislovodsk Oct. 2010 1 Turbulence measurement from scintillation of extended sources Moon's angular diameter =0.5 deg Correlated scintillation for b > z z=10m b=0.1m z=100m b=1m z=10km b=100m BI(b) = W(b,z) Cn2(z)dz Weighting functions zW(z) for b=0...0.4m and d=1cm 2 Kislovodsk Oct. ... 2010 12 Paranal: October 14, 2008 Kislovodsk Oct. ...

... Информация Руководство и преподаватели Чевелева Анастасия Олеговна . ... Публикации . ... Болотов М.А. , Печенин В.А., Чевелева А.О. Моделирование процесса измерения пера лопатки компрессора ГТД контролируемой на КИМ при базировании по хвостовику трапециевидной формы // Вестник СНЦ. ... 2012. ... Болотов М.А. , Чевелева А.О. Габариты контролируемых на КИМ плоских поверхностей как влияющий фактор погрешности измерения их координационно-позиционных параметров // Вестник СГАУ. ... http://сгау.рф | ...

. Земля из космоса: восточное полушарие . Снимок NASA Источник . Для увеличения щелкните по картинке . Вернуться

... Spherical aberration, coma, and astigmatism are also easily observed using the star test. ... Off-axis images are complex. ... Fig. ... Diffraction by a circular aperture as a function of defocus for no aberration Airy Disk 1 wave defocus Less than 1 wave defocus Fig. ... Diffraction by a circular aperture as a function of defocus for third-order spherical aberration Paraxial Focus Small distance inside paraxial focus Moderate distance from marginal focus Immediate neighborhood of marginal focus Fig...

... If you have wished to reach the Special astrophysical observatory the best way is to communicate with Tatyana N.Sokolova: . SAO RAS, Nizhny Arkhyz, . ... A visit to the 6-meter optical telescope BTA, the radiotelescopes RATAN-600 of 600 m in diameter of SAO RAS and the new 32-m dish of the Institute of Applied Astronomy of RAS. ... The visit to SAO, including meals, airflight and local transportation and accommodation, will cost a total of about 220 USD per person. ... 8 USD/per person/per night . ...

Image analysis of the VLBI experiment INTAS99.4 . PI: I. Molotov (GAO, Russia) . Analyst: A. Pushkarev (GAO, Russia; CrAO, Ukraine) . ... Frequency: 1.66 GHz . ... Antennas and their characteristics at 1.66 GHz . ... Bear Lakes (Russia) . ... Svetloe (Russia) . ... Pushchino (Russia) . ... CALIBRATION . Amplitude Calibration . Phase Calibration . ... 0420-014 . ... Quasar . ... 0420-014.gif . ... 0420+022 . ... 0420+022.gif . ... 0552+398 . ... 1308+326 . ... 1345+125 . ... 1803+784 . ...

... Module Crystal was launched from Baikonur on May 23, 1990 by the LV Proton-K. The total length of the module is 11.9 m; maximum diameter 4.3 m; mass at the launch 19500 kg. ... It has two panels of the solar batteries with the area equal to 72 m 2 (8.4 kW). They are of a new modification (repeated opening/closing is admissible) and one of them is transferred to the module Kvant. ... Besides, it has two additional docking ports for interaction with the reusable ships (Buran, later - Shuttle). ...