Christmas Day is celebrated on December 25. Many people look on Christmas as the time to celebrate the birth of Jesus Christ, but really the tradition goes back to the earliest of times.In those days the sun meant so much to primitive man that when it began to go lower each day till December 23, people thought the sun was going to die out and they were worried. ... On December 23 the sun stayed in the sky longer and longer and after that the nights were becoming shorter and shorter. ...

... Samara region . ... International relations . Scientific Publications . ... Events International Scientific and Technical Conference "Advanced Information Technologies AIT-2015" . ... Prokhorov S. A. - Doctor in Technical Sciences, Professor, Head of the Department of Information Systems and Technologies (IST) . ... Information Technologies in Transport; . ... Samara State Aerospace University named after academician S. P. Korolev, Department of Information Systems and Technologies. ...

December 16, 1997 . ... An example of the EUV chain revealed by the modified SOHO/EIT images. A complex EUV (195 A) chain or thread of December 16, 1997, consisting of several quasi-straight-line fragments between points 1-2-3-4-5 and covering a large part of the solar disk. ... A comparison of the large-scale chains and threads on two pairs of the modified SOHO/EIT (195 A; inverted) and He I (10830 A; normal) images. ... SOHO/EIT, 195 A, December 15-17, 1997 GIF Animation (1.07 MB) . ...

... TV research areas include design and building application CCD camera for investigation of nightglow emissions, investigation parameters of CCD chip and camera, calibration camera. ... Lapchuk V.P., Zhuravkov O.V., Ivchenko V.M. CAMERA ELECTRONICS FOR THE CCD FOURIER SPECTROMETER. ... CCD table . ... Photomultiplier tube housings, intensified CCD cameras, Monochromators, optical choppers, photometers, fiber optics ,... http://www.hpk.co.jp/ - HAMAMATSU Photonics Photomultiplier tube and more . ...

... Астрофорум - астрономический портал ? ... Астрономическое оборудование и аксессуары (Модераторы: zlyden , Denk36 ) ? Celestron Advanced C4-R или StarHopper 8 ???? . ... Осталось два варианта: Celestron Advanced C4-R или StarHopper 8. ... Записан . ... Ответ #1 : 22.05.2006 [21:07:47] ? ... Как он по сравнению с StarHopper 8 или Advanced C6-N ? ... Цитата: CreedFooz от 24.05.2006 [10:41:07] Да...в городе от добсона пользы может будет чуток больше чем от Advanced C4-R, . ...

... Celestron Advanced C6-N D150 f/5 . ... 31 Октябрь 2005, 16:40:29 ? Господа астрономы, кто нибудь пользовался телескопом Celestron Advanced C6-N D150 f/5, интересно узнать ваше мнение! ... Celestron Advanced C6-N D150 f/5 - неплохой аппарат, только распишите, что и где и как Вы с ним собираетесь наблюдать/фотографировать? ... Цитата: ajgolink от 31 Октябрь 2005, 16:40:29 Господа астрономы, кто нибудь пользовался телескопом Celestron Advanced C6-N D150 f/5, интересно узнать ваше мнение! ...

Statistics of sunspot activity . The sunspot indices . My observations . NGDC's observations . The solar regions . ... 2015 . ... December . ... December, 2015 . Visual indices of solar activity by author's observations . ... Average . ...

... Radiation mechanisms of astrophysical objects: classics today . ... 18 March, 2015 - Registration opens . 2 April, 2015 - Abstract submission opens . 15 August, 2015 - Registration and abstract submission deadline . 27 August, 2015 - Programme available . 21 September, 2015 - Conference opens . 25 September, 2015 - Conference closes . ... Key dates . ... Conference program . Conference poster . Conference venue . Conference proceedings . ...

Электронная библиотека астронома-любителя. ... Ru.Space.News: . Май 1998 . ... USA SPACEWARN 12934 COSPAR/WWAS USSPACECOM NUMBER SPACECRAFT INTERNATIONAL ID (CATALOG NUMBER) LAUNCH DATE,UT COSMOS 2350 1998-025A 25315 28 APRIL 1998 DR. JOSEPH H. KING, DIRECTOR, WDC-A-R . ... Дата: 05 мая 1998 (1998-05-05) От: Alexander Bondugin Тема: Next Space Science Update Features Largest Explosion Since The Big Ban Subject: Next Space Science Update Features Largest Explosion Since The Big Ban Привет всем! ...

Next: The X-ray Optics Up: No Title Previous: No Title . ... NASA's newest Great Observatory, the Chandra X-Ray Observatory (CXO) - formally known as the Advanced X-Ray Astrophysics Facility (AXAF) - launched on July 23, 1999 and represents such an advance. ... CXO has broad scientific objectives and an outstanding capability to provide high-resolution ( 0.5-arcsec) imaging, spectrometric imaging and high resolution dispersive spectroscopy over the energy band from 0.1 to 10 keV. ...

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... Imaging GRIN Rod Lens (HAG's) | Relay Rod Lens (LAG's) | ... The Refractive Index Distributions (RID) in GRIN lens preforms are made by multi-stage optimized ion-exchange diffusion between silicate mineral glasses and salt melts. ... In the LAG lenses - L ow A perture GRIN the nature of the changing of refractive index in glass via ion-exchange lies mainly in molecular volume increase. ... LAG lenses are specially treated to create the dark anti-flick surface coating (Fig.2). ...

coursera.org OCTOBER 15, 2013 Statement of Accomplishment ALEXANDER W OLF HAS SUCCESSFULLY COMPLETED THE UNIVERSITY OF TOKYO'S ONLINE OFFERING OF "FROM THE BIG BANG TO DARK ENERGY". ... DIRECTOR, KAVLI INSTITUTE FOR THE PHYSICS AND MATHEMATICS OF THE UNIVERSE (KAVLI IPMU) TODAI INSTITUTES FOR ADVANCED STUDY(TODIAS) THE UNIVERSITY OF TOKYO PLEASE NOTE: THE ONLINE OFFERING OF THIS CLASS DOES NOT REFLECT THE ENTIRE CURRICULUM OFFERED TO STUDENTS ENROLLED AT THE UNIVERSITY OF TOKYO. ...

Dear Colleagues, As you know, JENAM-2007 will take place in Yerevan, Armenia. ... JENAM-2007 will consist of 6 Plenary sessions (invited reviews on hot topics of modern astrophysics, 8 EAS Symposia, and 7 Special Sessions (SPS). ... The opening and closing sessions, EAS symposia and special sessions will be organized in the conference halls and auditoria of the Yerevan State University (YSU). ... The proceedings of the JENAM-2007 will be published in the EAS proceedings series in 2008. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... November 9, 10, 11, 12 and 13 . December 6, 7, 8 and 9 March 24, 25, 26, 27 and 28 . ... December 3, 4 and 5 February 13, 14 and 15 . ... December 10, 11, 12, 13 and 14 . Incoherent Scatter Radar ionospheric parameters measurements are carried out on coordinated days determined by the International Geophysical Calendar. ...

... Обнаружение метана в атмосфере Марса . ... Мы сообщаем об обнаружении метана в марсианской атмосфере с помощью Планетарного Фурье-Спектрометра на борту аппарата ?Марс Экспресс?. ... Структура атмосферы и метеоданные похожи на наблюдавшиеся посадочным модулем Викинга-1 21 год назад на такой же широте, высоте и в такое же время года, но имелись различия, связанные с суточными эффектами и свойствами поверхности в месте посадки. ... Марсианское время" - общественный научно-популярный журнал о Марсе. ...