... 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...

Download Izmccd (~2.7 MB). ... a) a choice of the best mode of measurements of stars and objects ("Properties/Measurement"), . b) a choice of reference stars. ... 1) necessity of presence on an image of a plenty of stars (we recommend to apply this mode, if on the frame of reference stars is more 100) . ... Sx and Sy depend from residuals at all reference stars (reference stars are marked by blue color). ... These residuals are the image of the star a minus function of a profile for each pixel. ...

Institute and Museum of History of Science (Florence ITALY) . Galileo Project (information on the life and work of Galileo Galilei and the science of his time.) Scientific People . Albert Einstein . Alphabetical Listing ".. This site contains topically similar material about astronomy, scientific BIOGRAPHY, scientific books, physics, and other areas of science.. Biographies of scientific people. ... History of Mathematics . Biographies of Mathematical "Eagles" . ...

... Статьи . ... О клубе . ... Автор забыл указать имя ] . ... Отчет о поездке клуба любителей астрономии в Новосибирск для наблюдения полного солнечного затмения. 1 августа трое членов клуба КАЭЛА, а именно, председатель клуба Жигалев А.И. и два его заместителя по науке и связям с общественностью Жигалев И.А. и Ханин Д.В., а также трое их друзей отправились в Новосибирск. ... 22 апреля 2007 года, из рабочей поездки, которая проходила в г. Юрга Кемеровской области, вернулась делегация клуба. ... Имя: . ...

Last modified: January 2002 . This site is maintained on a best efforts basis by members of the VSOP team. ... These pages contain links to many WWW sites. All such links are provided for reference purposes only. ISAS does not necessarily endorse or in any way recommend any of the organisations accessible from these Web pages. ... The image above is a stylized form of the Japanese word `koko', written in the hiragana script. ... 3-1-1 Yoshinodai, Sagamihara . Kanagawa 229-8510, JAPAN . ...

The sections <Directory> , <Location> and <Files> can contain directives which only apply to specified directories, URLs or files respectively. Also htaccess files can be used inside a directory to apply directives to that directory. ... The order of merging is: . ... If multiple <Directory> sections apply to the same directory they are processed in the configuration file order. ... Using the options in question is only possible inside a <Directory> section (or a .htaccess file). ...

... As then we removed from the Earth, we dived into a sky deeper and deeper. ... We saw immense red-hot spheres, liked suns, in illuminator of our spaceship. ... We saw our Earth, Mars, Mercury, and planets-giants, such as Jupiter, Saturn, Uranus and other. ... Also we saw a comet. ... The planet Upsilon was on our way. ... If we could speak the language of these two peoples, we could explain them what the war did on our home planet "the Earth", how many people were killed because of war conflicts. ...

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 . ...

. This color image was obtained with Fuji color film (Super Plus 400) in focal plane of the 70-cm reflector (F = 27 m) at Lisniki Observatory by A.M.Evtushevsky. Data and time of observation: April 27, 1997, 21:25 LT. Comet-Earth distance: 1.7 a.u. Time of exposure: 10 min. Field of view : 3 minutes of arc. Distance between shells, in average: 15 000 km. Diameter of bright coma in the picture center: of about 5 000 km. Last updated: January, 2005.

... Astronomy news . ... NASA's Spitzer Images Out-of-This-World Galaxy . ... It is spiral-shaped like our Milky Way, with long, spindly arms of stars. The "eye" at the center of the galaxy is actually a monstrous black hole surrounded by a ring of stars. In this color-coded infrared view from Spitzer, the area around the invisible black hole is blue and the ring of stars, white. ... The ring around the black hole is bursting with new star formation. ...

body bgcolor="#FFFF95"> <center><b><H2> Cписок работ за 1983 гг. H2 /b / center br font color = # FF0000 Хрузина Т.С . / font , Черепащук А.М. font color = green Оптические затмения и прецессионные эффекты в рентгеновских двойных системах SMC X-1 и Cen X-3. / font font color = blue // Aстрон . журнал, 1983 , b 60 /b , 57-71 (Sov.Astr., b 27 /b , P. 35) / ...

AAL Guestbook . Please Sign Our Guestbook . ... Previous Page | ... CA, CA USA . ... Signed on Tuesday, December 10, 2002 at 09:23:06 CET . ... USA, USA USA . Great site! ... Great page with great content! ... Signed on Friday, November 15, 2002 at 10:58:38 CET . ... Signed on Wednesday, September 18, 2002 at 10:51:33 CET . ... The Chinese mythology and astronomy -fragment- . ... send your email to send paradox project thanks! Signed on Tuesday, September 03, 2002 at 13:20:43 CET . ...

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... Сегодня: 10 апреля 2016 г. Компания Hi-Shear Technology из штата Делавэр раньше поставляла NASA пиротехнические болты, которыми твердотопливные ускорители крепились к внешнему топливному баку "шаттлов". Однако во время последнего запуска "шаттла" Columbia использовались болты другой компании Pacific Scientific Energetic Materials, которая обошла Hi-Shear, став поставщиком агентства NASA. ... Шаттл" Columbia погиб из-за бракованных болтов? ...

... M3 is a AAAP member, an comprises perhaps 500,000 engineer, and an associate of stars and has an apparent the astrophysics community diameter of 19 arc-min with a and the SDSS project. ... Opportunities for AAAP Members. ... Many of our astronomers are finding participating in Project ASTRO NOVA so rewarding and enjoyable that they make several additional visits. Astronomers who are interested in participating in Project ASTRO NOVA should request and fill out an Astronomer Volunteer Form. ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...