... The Advanced Visual Systems (AVS) has been used to explore lines of sight through the complex geometry of the Green Bank Telescope (GBT). Perspective images computed by AVS from geometric descriptions of the components of the telescope have been used when selecting locations for the installation of laser rangefinders and when checking geometrical relationships along the optical path. ... The AVS ``camera'' could be commanded to look from any location in the scene toward any another location. ...
In 2007-2008, the planet Uranus will reach one of its annual equinoxes for the first time since 1966. As a consequence, its five major satellites orbiting in the equatorial plane will undergo a season of mutual eclipses and occultations very similar to the one that Jupiter's Galilean satellites undergo every 6 years. ... Some of these events occur when Uranus is at conjunction, or the satellite is transiting or too close to the limb of the planet. ... Complete table of events . ...
My research is focused on applications of the mathematical language of geometric algebra. ... Geometric algebra can be applied to any subject in mathematics, physics or engineering which is in some part rooted in geometry. ... A black hole has a spectrum of gravitational bound states in much the same manner as the Hydrogen atom. These have only recently been determined, and are contained in the paper Bound States and Decay Times of Fermions in a Schwarzschild Black Hole Background . ...
The Preferences window allows you to specify various application preferences (surprise!) It is brought up by selecting Preferences from the TUI Menu. ... Each preference may be edited by clicking on it. If the value is changed to anything other than the current value then an exclamation mark is shown between the name and the value. ... Seq By File : controls whether whether images are numbered in the order taken (unchecked) or are numbered separately for each image name (checked). ...
Springtime in the Solar System . In our case, we can use the tilt theory of the seasons to make a prediction: that any tilted planet will have seasons, and that the strength of these seasons will depend on the amount of the tilt. ... At summer solstice, the north pole points straight at the Sun; the north polar regions have tropical weather, but the Southern Hemisphere is in total darkness. ... With a little trigonometry, you can calculate the angle of the Sun and the intensity of solar heating. ...
... RA (Dec) Offset & Strip Time: These parameters not only define the size of your map in the RA (Dec) direction in arcmin, but also, when combined with the strip time, set the drive rate on the sky; i.e., the RA drive rate is set to 2 60 (RA offset)/(Strip time) [in arcsec/sec]. The type of arcsecond (little circle or great circle) is set by the RA offset type (see below), or a Dec drive rate of 2 60 (Dec offset)/(Strip time) for the Dec/RA map option. ...
... Роман Евгеньевич Ильинский email : ilinsky_r@mail.ru . ... Ильинский Р. Е., Ровенская Т. С. Дифференциалы луча в оптической системе // Вестник МГТУ. ... 1998.- ... Roman Ilinsky , Gradient-index meniscus lens free of spherical aberration, Journal of Optics A: Pure and Applied Optics, volume2, number 5, pages 449-451, year 2000 . ... Ильинский Р. Е. Определение реальных габаритов пучков в градиентных оптических системах // Прикладная оптика -2000: Тез. докл. ... 2000.- ... ROMAN ILINSKY . ...
Bigbang Forum Message . Forums: . ... More Recent Work On Stringy Inflation . ... In order to obtain COBE-normalised density perturbations, the stabilised volume of the Calabi-Yau must be O(10^5-10^7) in string units, and the inflationary scale M_{infl} ~ 10^{13} GeV. ... Towards Inflation in String Theory . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
... Bad Astronomy . ... Bitesize Astronomy . ... Universe Today . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... If the Universe is flat, it is forever balanced between open and closed; it will expand forever, but always slowing, just balancing gravity. ... Basically, if the Universe is open (will expand forever), closed (will eventually contract again) or flat (expanding just fast enough to balance gravity), you will see differences in the way the SN behave. ...
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 . ...
Профессор Пол Коркум ( Paul Corkum ) - профессор Физического факультета Университета Оттавы. ... П. Коркум является одним из мировых лидеров в области физики атомов и плазмы в сверхсильных лазерных полях. ... П. Коркумом внесен большой вклад в теорию атомной ионизации, его замечательным достижением стали новые идеи о механизмах генерации аттосекундных импульсов, которые были им успешно реализованы экспериментально. ...
Астрономические наблюдения. ... Наблюдение комет . ... Наблюдения с биноклем . ... Уильям А. Бредфилд - открыватель 18 комет - биография. поиск на 'Галактике' Народ.Ру Яндексе . ... Бредфилд старается не упустить ни одной ночи из тех, которые он считает пригодными для наблюдений, а к таким он относит ясные, темные ночи, когда Луны нет на небе, или ее возраст не превышает 2-3 дней. ... Монтировка телескопа, с которым Бредфилд ведет наблюдения, это альтазимутальная установка, выполненная из дерева. ...
... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . ... Комплексная европейско-российская межпланетная миссия JUICE-ЛАПЛАС по исследованию системы Юпитера должна состояться в 2022-2030 гг. Ее целью станет посадка на спутник Юпитера Ганимед с предполагаемым океаном под поверхностью. ... выход на орбиту вокруг Ганимеда; . посадка на Ганимед. ... Презентация сотрудников ИПМ им. М.В.Келдыша РАН на Международном Коллоквиуме "Ganymede Lander" 4-8 марта 2013 г., Москва: . ...
... Tonight's Sky . ... Observing . ... Observing Podcasts . ... Dave's Universe . ... WMAP releases final results on the infant universe . ... The detailed all-sky picture of the infant universe created from seven years of WMAP data. ... Bennett and the WMAP science team are releasing its final results, based on a full nine years of observations. т??It is almost miraculous,т?? said Bennett. т??The universe encoded its autobiography in the microwave patterns we observe across the whole sky. ...
Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...
... Moon . ... Earth Satellites . ... A remarkably popular ?theory?€а is the Hollow Moon Hypothesis. ... In an article by Michael Vasin and Alexander Shcherbakov published in 1970 (Vasin and Shcherbakov were members of the then Soviet Academy of Sciences, but the article was published not in a science journal but in Sputnik , a sort of Soviet Reader?s Digest ) it was hypothesised that the Moon was actually an artificial, hollowed out Earth satellite that had been put into place by unknown beings. ...
Using XPA remotely ================== XPA starts by default using network communication with access control. ... Copy and append id_dsa.pub to $HOME/.ssh/authorized_keys on the system you are connecting to. ... If you are connecting from an observer's computer to a telescope computer that is not on a local area network, you may also need to change the firewall settings to enable SSH. ... The ssh command forward the port 5901 on your local computer to the same port on the telescope computer. ...
... Observing . ... Home Articles Observing Resources for Amateur Astronomers ? Part 1: Beginning Observers . ... High Line - Solar Observing . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . Observing Resources for Amateur Astronomers - Part 3: Advanced Observers . Observing Resources for Amateur Astronomers - Part 4: Magazines and Miscellany . ...
Next: Unusual Emission near a Up: NICMOS Science Previous: The Stellar Population in . ... Three examples are presented of how ISOCAM 1 sees the process of stellar evolution. i) Standard staring and coronographic observations with ISOCAM towards BD+31 643 are presented. ... Position 4 is closest to the star; Position 6 coincides roughly with the minimum of emission seen in the images; position 7 with the ring. ... I presented three examples of the evolution of stars as seen with ISOCAM. ...
... Индексы солнечной активности . ... Солнечные регионы . ... Описание солнечных регионов . ... Скопление мелких пятен, возникшее в центральной части солнечного диска 9 ноября 2004 года. 13 ноября группа приобрела закрытую конфигурацию и неожиданно начала увеличиваться в размерах. 16 ноября суммарная площадь региона достигла 300 м.д.п. После этого группа начала распадаться, а 18 ноября она достигла западного лимба. ... Короткоживущая пора, замеченная в центре солнечного диска 17 января 2005 года. ...