... Bojan Nikolic web pages home . ... The PDF of the paper is available here: . http://www.mrao.cam.ac.uk/~bn204/publications/2011/nikolicga11.pdf . ... The estimates of path fluctuations are then used to phase-rotate recorded visibilities leading to much increased coherence. In this paper we briefly review the design of the radiometers, describe the software processing steps to derive phase corrections and show some of the first results from the ALMA site in Chile. ...
... Многоапертурный детектор атмосферных мерцаний (MASS) разработан для продолжительного мониторинга параметров оптической турбулентности в свободной атмосфере на существующих обсерваториях и при выборе мест для новых обсерваторий. ... The Multi-Aperture Scintillation Sensor (MASS) is intended for continuous monitoring of free atmosphere parameters at different observatories and potential observational sites. ... Mainly, the site is designed for Sternberg Astronomical institute MASS group itself. ...
TEST ATMOSPHERIC DISPERSION CORRECTION II (ADC II) Les planХtes plus nettes ! L 'ADC II est un accessoire qui permet de corriger la dispersion des couleurs provoquИe par l'atmosphХre sur la lumiХre des astres. ... Le rИglage des prismes se fait Ю l'aide des deux molettes sur le cТtИ. Prise en main de l'ADC L'ADC est constituИ de deux prismes ronds chargИs d'induire une dispersion des couleurs exactement inverse Ю celle causИe par l'atmosphХre. ... Nous avons voulu essayer l'ADC sans Barlow. ...
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Ссылки http://www.cieletespace.fr/files/InstrumentTest/201110_test_ADC2.pdf -- 1340.6 Кб -- 28.10.2011 Похожие документы
... Numerical simulations of highly turbulent flows in astrophysics benefit greatly from recent advances in high performance computing. ... Figure: Perspective full domain view of vertical velocity at one instant in time in 3-D turbulent convection simulation ( ). ... Original PostScript figure (1496 kB) . ... Figure: Phase diagram of pointwise convective flux as function of the vertical velocity in a horizontal plane near midlayer for turbulent convection with , and , with . ...
... Archives . ... Oct 19th, 2007| 12:51 pm | ... Quite interesting papers were up at arXiv, including a theoretical statistics paper that no astronomer manages to miss. ... astro-ph:0710.2371] . ... astro-ph:0710.2397] . ... astro-ph:0710.2436] . ... N. Marco, G. Gabriele, and G. Giancarlo. [astro-ph:0710.2455] . ... 2]: In addition to this week?s GRB paper, [astro-ph:0710.3099]* , there were some statistical studies about multi-modality in GRBs [see Three classes of GRBs ]. ... Chandra Blog . ...
... If the mass of the collapsing star is more than three solar masses, however, no force can prevent it from collapsing completely to become a black hole. What is a black hole? Mini black holes . ... For Further Reading About Black Holes A black hole is a region of space in which the pull of gravity is so strong that nothing can escape. ... A black hole with a mass less than three solar masses would not form on its own; its gravity is too weak to cause it to completely collapse in on itself. ...
Dams are frequently located upstream from major population centers: . 1918--1958: 33 Major dam failures resulting in 1680 documented fatalities . 1959--1965: 9 major dams failed throughout the world . 1976: Teton Dam failure in Idaho . ... The Salmon Problem: . ... Some Federal Dam Licenses can now be lost because of salmon migration problems . ... Actual Salmon Count data is available for these dam sites: . John Day Dam . Bonneville Dam . ... Adverse effects of dams on salmon: . ...
... For reliable estimation of the accuracy of asteroid CCD observations we usually consider from ten or more various NUMBERED MINOR PLANETS (NMPs) observed during several nigths per month (more then 50 positions). ... They can be considered as an indicator of accuracy of the CCD positional observations with given MPC code. ... For any NUMBERED minor planet the (O-C) values must be zero if the errors of observations and the errors of its theory are absent. ...
Astronotes Armagh Planetarium's Stellar Blog! ... Telescopes and Observatories . ... To understand what the James Webb Space Telescope is and what is hoped of it, we first need to have some idea of the current astronomical context of discovery in which it will find itself. ... Before looking at the James Webb Space Telescope for purely comparative purposes however letтАЩs briefly consider another eminent representative from this space-based genre of observatories, the HST or Hubble Space Telescope. ...
MAIN PAGE . ... LINKS . ... AAL Members Sites . ... Amateur Astronomy . ... Mars Missions . Observatories Telescopes . ... astronomylinks.com. - astronomy and space links, shortcuts, favorites and bookmarks . ... Mel Bartels' Homepage about Amateur Telescope Making and a lot of interesting links (thx to Hugues Laroche for the link!) ... STEREO (Solar TErrestrial RElations Observatory) consists of two space-based observatories - one ahead of Earth in its orbit, the other trailing behind . ...
... Home Articles Amateur Telescope Making . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... The project of making a 17-1/2 inch telescope was made possible only with the help of many other people, most of whom are part of the€а Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...
Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... How Good An Astronomer Do You Need? ... Post Message | ... So solar astronomy works with adaptive optics only when adaptive optics are not really needed to get good images, a negative result. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
... Православный календарь . ... Вечный календарь v2.5 Программа, позволяющая получать данные о любом дне григорианского или юлианского календаря в период с 100 по 3000 год н. э. В удобной форме предоставляется информация о православном и народном календарях, гражданских праздниках, астрономических данных о Луне и Солнце и др.. ... Православный календарь на год. ... Смотрите также: История календаря. ... История календаря. ... История календаря и хронология. ... Календарь и хронология майя. ...
... разработка теории и методов расчета лучевых дифференциалов первого, второго и третьего порядков в градиентных оптических системах; . ... разработка методов расчета геометрических аберраций второго и третьего порядка осесимметричных оптических систем, содержащих асферические поверхности и градиентные среды типа "псевдоаксикон"; . ... получены формулы для расчета смещения изображения и геометрических аберраций второго порядка в градиентных оптических системах с малыми нарушениями осевой симметрии; . ...
... A General Summary of Sacramento Peak Weather, GRD Research Notes No. ... This report summarizes and discusses newly derived means for the period August 1954 through July 1974. ... Table 1 lists the monthly average maximum and average minimum temperatures for each of the years 1954 through 1974. ... Mean . ... Oct . ... Figure 6: Distribution of Mean Annual Precipitation, Sacramento Peak. ... Figure 9: Distribution of Mean Annual Precipitation, Sacramento Peak; Mount Peak; and Alamogordo, New Mexico ...
The 24-inch (0.6-meter) Ritchie-Chretien research telescope was manufactured by RC Optical Systems and installed in August 2006. ... Spacers are used to put the camera or other instruments at the proper position, and an encoded focus motor moves the focal plane 5 microns per encoder count. ... The telescope uses an Apogee U16M CCD camera with a 4096x4096 array of 9 micron pixels which oversample the seeing and permit very accurate photometry and imaging over a wide dynamic range. ...
... 7 July 2003 Outgoing Membership Secretary Peter Psyhos served the club for one year, and served us equally well. ... He introduced us to new members at almost every meeting, and we are also grateful that he has already sent out the membership renewal forms for 2003-04 so that our new Membership Secretary, Shilpa Lawande, could get a head start. ... Well done. ... Eileen Myers- The rest of the executive board and members of the various club committees have all had an outstanding year. ...
... Meade Instruments Corporation . ... Meade Model 390 Refracting Telescope . Meade Model 390 90mm (3.5") Altazimuth Refracting Telescope . Introducing the Meade Model 390 . ... These instructions detail the set-up, operation, specifications, and optional accessories of your Meade Model 390. ... The Meade Model 390 may be used for a lifetime of rewarding terrestrial and astronomical observing, but basic to your enjoyment of the telescope is a good understanding of the instrument. ... Meade 4M | ...
Rex Parker (609) 730-0670 drexparker@aol.com ereal times id s The Official Publication of the Amateur Astronomers Association of Princeton Treasurer: Ron Mittlestaedt (609) 771-6981 C8User@aol.com Secretary: Ludy D'Angelo (609) 882-9336 dronetone@aol.com Program Chairman ... vic@apink.com Assistant Director: John Miller (609) 252-1223 jmiller@princetonastronomy.org Volume 34 From the Director November 2005 Number 10 Nov 8 AAAP Meeting ... Mars Opposition Opposed by Earth's Weather. ...
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Ссылки http://www.princetonastronomy.org/newsletters/11_2005sidereal.pdf -- 648.5 Кб -- 02.11.2005 Похожие документы
Previous Editions of the M111: . ... Staring At Lightning.. ... On Line"! ... Any time you have something you'd like to offer - be it a story of how you first got started in astronomy, a star party you just attended, a telescope you just bought, or your favorite constellation, just drop me a line with the story included and I'll be sure to get it posted! ... Indeed, in just two weeks of observations, GLM is expected gather more data than NASA's two low-Earth orbiting research sensors did in 10+ years. ...