ATM Forum Message . ... Post . ... Testing Convex Surfaces. ... Post Message | ... There are several ways to test convex surfaces. You can test through the glass. ... Next is making a test plate and doing the convex measurement just like doing two flats against each otehr. ... Next is using a larger lens to test the surface. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... e.g., 2-0 S(0) +, 1.190 m denotes the 2-0 S-branch with + signs, starting from 2-0 S(0) at 1.190 m. Top panel (J-band): 2-0 S(0) +, 1.190 m; 2-0 Q(1) , 1.238 m; 2-0 O(2) vertical line, 1.293 m; 3-1 S(0) triangle, 1.262 m; 3-1 Q(1) filled triangle, 1.314 m; 3-1 O(2) 3-sided star, 1.373 m; 4-2 ...
Ice Volcanoes Reshape Europa's Chaotic Surface . Ice-spewing volcanoes and the grinding and tearing of tectonic plates have reshaped the chaotic surface of Jupiter's frozen moon Europa, images from NASA's Galileo spacecraft reveal. ... Although the images do not show currently active ice volcanoes or geysers, they do reveal flows of material on the surface that probably originated from them, said Galileo imaging team member Dr. Ronald Greeley of Arizona State University, Tempe. ... Europa . ...
... OOF . ... OOF Index . ... OOF software . ... Fits up to fifth order . ... These are experimental data currently being analysed, not final documentation of research. ... Only fitting for Zernike orders up to and including 3rd to concentrate on finding possible off-axis aberrations. ... The results below show that when fitting for all Zernikes up to and including fifth order, the output maps vary greatly between pixels. As above, but fitting up to fifth order Zernike polynomial. ...
Сетевой Информационный Центр . Сетевой Информационный Центр ИКИ РАН: . занимается разработкой и представлением пользователям сети информационных ресурсов в области освоения космического пространства и смежных отраслях знаний; . ... Проект ИНТЕРБОЛ . ... Mars Polar Lander . ... Персонал Сетевого Информационного Центра ИКИ РАН. Список рассылки Сетевого Информационного Центра ИКИ РАН: nic@rssi.ru . ... О сети RSSI Политика История Топология Статистика Управление Услуги Пользователи Новости . ...
Next: Particle Background Rejection Up: Detection Efficiency Previous: Front Illumination . ... The method requires that the CCD substrate be etched from the rear towards the depletion layer boundary. The device can be illuminated through this rear surface, which has a much thinner dead layer than the electrode side. ... The corresponding detection efficiency data are presented in Figure 7, and compared with the predicted data for a 20 m thick depletion layer. ...
. Главная страница . и. новиков . МОСКВА ?МОЛОДАЯ ГВАРДИЯ? 1985 . Новиков И. Д. Н73 Черные дыры и Вселенная. ? М.: Мол. гвардия, 1985. ? 190 с., ил.? (Эврика). 50 к. 100000 экз. В книге говорится о совершенно необычных небесных телах открытых учеными в последние десятилетия, о черных дырах, о рождении галактик и туманностей, об отдельных особенностях развивающейся Вселенной. ББК 22.66 . 527 . ВВЕДЕНИЕ . В этой книге рассказывается об открытиях в астрофизике последнего времени ? о черных дырах, о начале
. Форум космопорта . Космос и все, что с ним связано... FAQ Поиск Пользователи Группы Регистрация . Профиль Войти и проверить личные сообщения Вход . Список форумов Форум космопорта . Критическая информация . Вам был закрыт доступ к форуму . Обратитесь к вебмастеру или администратору форумов за дополнительной информацией . Рекламные ссылки: . срочный перевод документов, стоимость перевода документов
Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Planets . ... Perhaps PlutoтАЩs surface is not old and dead? ... Mercury is the most heavily cratered planet in our Solar System. ... Venus . ... Mars . ... A voyage through the Solar System. ... As we patiently wait for more images to be released of Pluto and its moons from the New Horizons mission, we are left wondering how interesting and different the planets in our Solar System are and how much more there is still to discover. ...
... Telescopes ћ Binoculars ћ Microscopes . Meade Ultra-High Transmission coatings (UHTC ) Group . ... Meade Standard Coatings: The optical surfaces of all Meade telescopes include high-grade optical coatings fully consistent in quality with the precision of the optical surfaces themselves. ... These specialized, and extremely advantageous, coatings are offered here as the Meade Ultra-High Transmission Coatings (UHTC) group, a coatings group available optionally on many Meade telescope models. ...
... Plate bending . ... The plug-plates of SDSS project are responsible for locating the optical-fiber plugs spatially and for defining the plug tilt with respect to the surface of best focus. ... It can be seen from the graphs that after bending the plate and adding a central suport, the curvature of the plate was quite near that of the desired Kent005 curve. ... Upon adding a central support, however, the slope of the plate decreases to a value slightly less than that of the Kent005 curve. ...
... Apr 14, 2016 - Monthly Meeting . ... The Amateur Telescope Makers of Boston, Inc. ATMoB) is an astronomy club devoted to telescope making, observing, and studying the heavens. ... CURRENT MOON . ... April Sky . ... Lyrids Meteor Shower . ... Sources: NASA JPL Space Calendar , StarDate Online , Sky Telescope , Harvard-Smithsonian Center for Astrophysics , RASC Observer’s Handbook , Abrams Planetarium Sky Calendar and Astronomy Magazine . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
... A new method for the discrimination of point-like objects in astronomical images is presented. The method makes use of the surface curvature of the image, without any a priori knowledge of the shape of the point-like objects. ... We propose a new approach to the problem based on the properties of surface curvature which is related to peaks, pits and flats in images and therefore contain the key information to discriminate point-like objects. ... The image of means is called the analysis image. ...
... ТАЛ-3: . ПЕРВЫЙ ЭТАП МОДЕРНИЗАЦИИ . В есной 2000г. мне довелось приобрести телескоп ТАЛ-3 новосибирского производства. ... Диаметры компонентов: мениск - 210мм, главное зеркало - 214мм, вторичное зеркало - 66мм. ... Эту проблему я решил путем доработки электронной схемы управления (см. ниже), благо шаговый двигатель в состоянии развивать достаточные для плавного наведения скорости. ... Надеюсь, все же, что эта статья будет первой, но не последней публикацией, посвященной модернизации ТАЛ-3. ...
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RECREATIONAL TELESCOPES . ... ASTRONOMICAL TELESCOPES . ... Home Products Telescopes Astronomical Telescopes ASTELE™ 152MN . ... Whatever eyepiece you're using at the time is your finder eyepiece. ... 152MN is 4.4, so, unlike telescopes with much longer ?-ratios, you're able to use low magnification (27.4 X, 2.3° with the 25 mm PlЖssl eyepiece) which produces bright images and wide fields of view for those dim galaxies, nebulae, and very large star clusters, but the ASTELE? ... BK7 optical glass . ...
. Next: *tprint* - Reading a Up: *imexamine* - General analysis Previous: Contour Plot . Some other useful functions which also give graphical results are: . r gives radial plot of surface brightness. c (column) gives brightness in a vertical slice through the cursor. l (line) gives brightness in a horizontal slice through the cursor. rsdc@cfa.harvard.edu . 1998-06-10