... 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...

... Using the CFBDSIR wide field survey for brown dwarfs, we identified CFBDSIRJ214947.2-040308.9, a late T dwarf with atypically red J-Ks colour. ... SN 2009ip in NGC 7259 Electronic Telegram No. ... 7.09, [19.0; 2009 Aug. ... Accepted for publication in MNRAS Subjects: High Energy Astrophysical Phenomena (astro-ph.HE) The jet opening angle theta_jet and the bulk Lorentz factor Gamma_0 are crucial parameters for the computation of the energetics of Gamma Ray Bursts (GRBs). ...

Sp ecific features of differential motions in the DIMM V. Kornilov, B. Safonov May 28, 2010 1 Intro duction Differential image motion monitor DIMM widely used in studies of optical turbulence, is destined to measure the integrated effect of the Earth's atmosphere on the image quality. ... In the work of Martin, they are obtained by gradual spatial filtering 1 of the power spectrum of phase perturbations in the assumption of Kolmogorov's model of the optical turbulence (OT). ...

ASTRONOMY IN UKRAINE - 2000 AND BEYOND . ... Kyiv, Ukraine, 5-8 June 2000 . ... The primary objective of the conference is to consider the integration of astronomical research in Ukraine into the international astronomy. ... VLBI for Astronomy and Geodynamics Convenors: Kees van't Klooster (The Netherlands), Leonid M. Litvinenko (Ukraine), Chopo Ma (USA). ... Planetary Astronomy Convenors: Teodor Kostiuk (USA), Robert Nelson (USA), Yuri Shkuratov (Ukraine). ... The "general" registration fee: 100 USD. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... РАБОТА В СЕТИ ИНТЕРНЕТ И ПОИСK . ... При работе в сети Интернет часто возникает необходимость переписать фрагменты открытой страницы на диски компьютера. ... Для того, чтобы посмотреть исходный код загруженной страницы достаточно щелкнуть правой кнопкой мыши на пустом месте документа. При этом на экране появиться меню, в котором надо выбрать строчку "вид источника" (View Source), щелкнув на ней левой кнопкой мыши. ... Оно содержит HTML-текст загруженной страницы. ...

Pulkovo Database of Observations of Visual Double Stars . ... Catalog of relative positions of visual double stars, based on photographic observations performed since 1960 in Pulkovo on the 26-inch refractor (A.A.Kiselev, O.A.Kalinichenko, O.V.Kiyaeva, N.A.Shakht, L.G.Romanenko, I.S.Izmailov, O.P.Bykov, K.L.Maslennikov, E.A.Grosheva, D.L.Gorshanov), 2010 . ... Enter either ADS or WDS number. Click here to display full list of visual double stars observed at Pulkovo. ADS . ...

... Meteorite Boguslavka fall , October 18, 1916. ... By fear of such awful stories we will learn to do good and to keep God's commandments and then we will be blessed" - lamented the scribe as he entered a meteorite fall in Great Novgorod into the Tale of Years. ... The greatest among them were meteorite falls in Great Ustyug (1290), Great Novgorod (1421) and near the village of New Ergy (1662). ... The third and fourth seals show the cloud of stones covering Great Ustyug rocks falling onto the town. ...

... IONOSPHERIC DATA IN THE INTERACTIVE SPIDR SYSTEM . ... The Ionosphere The ionosphere is that part of the upper atmosphere where free electrons occur in sufficient density to have an appreciable influence on the propagation of radio frequency electromagnetic waves. ... These regions may be further divided into several regularly occurring layers, such as F1 or F2. ... E Region: The region between about 95 and 150km above the Earth that marks the height of the regular daytime E layer. ...

... Универсальный сетевой адаптер для MEADE ~100-240B/-12В, 3,34A (длина шнура 7 м) . ... Длина шнура до 7 метров обеспечивает возможность удобно расположить телескоп на площадке для наблюдений . Универсальный сетевой адаптер предназначен для питания телескопов MEADE, имеющих входное напряжение питания 12 В (за исключением телескопов на монтировке MAX MOUNT), от сети переменного тока. ... Каталог MEADE по классам . ... Copyright PENTAR ї2004-2016. (бинокли, цифровые фотоаппараты, телескопы) . ...

... Вход в Астротоп + Напомнить пароль + Блог + ЗАРЯ + Exit . ... http://www.cancomsolutions.com:33222 . ... http://www.thsfda.com:32270 . ... http://www.klimindoor.com:14114 . ... http://www.klimindoor.com:16999 . http://www.thriveorfail.com:30577 . http://www.rockitmp4.com:40055 . ... a href=" http://priceofviagrapills.com/ "?viagra pricing 100mg walmart?/a? should be swallowed with a binoculars of water. ... http://www.virtualrealityglassese.com/author/p.lamkin - lamkin . ... Пущино, РОССИЯ . ...

... запланированная на 2011 год программа изучения гравитационного поля и внутреннего строения Луны космическими аппаратами. ... Гравитационная карта Луны, сделанная космическим аппаратом Lunar Prospector в 1998-1999 годах . Эта миссия подобна ранее начатому проекту Gravity Recovery and Climate Experiment, изучавшему гравитационное поле Земли. ... 1М (космический аппарат) . ... 2МВ (космический аппарат) . ... Gravity Recovery and Interior Laboratory . ... Союз (космический корабль) . Союз 7К-Л1 . ...

... StarCalc by Александр Завалишин . Астрономия . ... Астрономический Петербург. ... Mike Boschat's Astronomy Page (огромное количество ссылок) . ... Space Telescope Science Institute (Hubble Space Telescope) . Images of the Messier Objects from the Digitized Sky Survey . ... Космонавтика . ... Житомирский музей космонавтики им. С. П. Королева . Виртуальный музей космонавтики Александра Чернова . Мемориальный Музеи космонавтики . ... Энциклопедия КОСМОНАВТИКА Александра Железнякова . ...