... The Meade Series 4000 Zoom Eyepiece has changed that impression completely and forever. ... Meade Series 4000 2x Apochromatic Barlow Lens (1.25") . Exclusive Meade 3-element, air-spaced design; thousands now in use worldwide. #140 2x Apochromatic Barlow Lens: The most advanced Barlow lens yet developed for commercial telescopes, the Meade #140 2x Apochromatic Barlow includes a 3-element, air-spaced telenegative lens unmatched in image resolution, contrast, and color correction. ... about meade | ...

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... В январе 1920 г. директор обсерватории С.Н.Блажко передал ведение службы времени А.С.Миролюбовой [ 1 ] и мне "как младшим членам обсерватории". ... Определялись поправки часов Рифлер 323, которые были куплены П.К.Штернбергом в 1912 г. для Высших женских курсов, где он преподавал, и пущены им тогда же. ... Ритмические сигналы пошли от нас 13 мая 1931 г. Все Службы времени (первая - Пулково) стали пересматривать цепи, по которым сигнал от контакта часов проходил на хронограф. ... Я остановила часы. ...

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• M31.SPB.RU: Archive - Books - Return from Space
• M31.SPB.RU: Archive - Books - Fire Enthusiasts

. Authors . Problem . Method . Advises . Contact Analysis of an accuracy of CCD asteroid observations carried out by professional and amateur astronomers . An accuracy estimation of CCD asteroid observations contained in the Minor Planet Center Database and carried out in the years 1999 - 2006 is realized. About 20 millions individual positions of the Numbered and Unnumbered Minor Planets were tested by means of calculations of (O-C) residuals to derive "mean error of a single observation" for more than 400

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... After the edit, recompile the kernel and recompile the Apache server then reboot. ... If you're running a really busy BSD Apache server, the following are useful things to do if the system is acting sluggish: . ... Maximum # of processes . ... This machine is a server that handles lots of traffic, # so we crank that value. options NMBCLUSTERS=4096 # mbuf clusters at 4096 # # Misc. options # options CHILD_MAX=512 # maximum number of child processes options OPEN_MAX=512 # maximum fds (breaks RPC svcs)...

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• Apache HTTP Server Project
• Apache Performance Notes
• Authentication, Authorization, and Access Control

... Table Of Contents Introduction Interferometry Basics Types of Interferometers The Spherical Wave Interferometer Designing and Making the Reference Element Mounting the Components The Laser Assembling and Aligning the Interferometer Viewing and Recording the Fringe Pattern Using the Interferometer Analyzing the Fringe Pattern Peak to Valley or RMS? ... The highly monochromatic nature of laser light allows a large separation, or optical path difference, between the test and reference surfaces. ...

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... Space activity at the beginning of XXI-st Century view from inside G.M.Chernyavskiy STC for Earth Space monitoring of FSUE , Russia 1. The systemic approach in astronautics Everyone who has linked his life with astronautics and those who are interested in the future of the inhabitancy medium and its expansion up to cosmic scales, are troubled about the current state and development of space activity in the World and in the Native Land of the first artificial Earth satellite (AES). ...

148. Путешествие среди черных дыр / Разное / Азбука астрономии

149. Мария Митчелл/Maria Mitchell

150. Saturn rings hystory