... This ``Maunder Minimum'' is not only of interest to solar physicists in the context of the theory of solar magnetic activity, and to stellar astrophysicists working on the properties of cool stars, but may also be a vital clue to the influence of the variability of the Sun's power output on terrestrial climate. ... Without at least partial records of solar behaviour from 1645 to 1715 the whole question of the Maunder Minimum would never have been opened. ... Maunder, E. W. 1890, MNRAS, 50, 251 . ...
TEST Des reflex douИs pour le ciel RИaliser des vidИos Cette vue de la galaxie du Triangle M 33 a ИtИ obtenue en cumulant quatre poses de 1 min avec un objectif de 200 mm ouvert Ю f/4. ... Il est alimentИ par une pile AAA. ... C'est dИjЮ Иnorme. ... Le but est d'avoir une valeur optimisИe par rapport Ю la cadence de prise de vue. ю 30 images par seconde, il est judicieux de se mettre sur 1/30 s. Avec un temps de pose plus court, l'image finale sera davantage bruitИe pour une longueur de vidИo donnИe. ...
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Ссылки http://www.cieletespace.fr/files/InstrumentTest/201202_test_reflex.pdf -- 1122.9 Кб -- 16.02.2012 Похожие документы
Beam Parameter Measurements New Physics at TeV Scales and Precision EW Studies Eric Torrence University of Oregon Eric Torrence 1/14 March 2005 Beam Instrumentation Introduction 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 490 492 494 496 498 500 502 504 Root(s) (GeV) ( -, - ), ( +, + ), ... dL -----dE L 0 s Fundamental Goal Spin-dependent absolute collision energy spectrum Typical Components · · · · · Beam Energy ... Eric Torrence 14/14 March 2005 ...
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Ссылки http://zebu.uoregon.edu/~uochep/talks/talks05/beamp03-05.pdf -- 470.3 Кб -- 29.03.2005 Похожие документы
Truebloodb,g, K. Zelayab Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43221 USA; bNational Optical Astronomy Observatory, 950 North Cherry Street, Tucson AZ 85719 USA; cCerro Tololo Inter-American Observatory, Casilla 603, La Serena ... USA ABSTRACT We describe the design, construction and measured performance of the Kitt Peak Ohio State Multi-Object Spectrograph ( KOSMOS ) for the 4-m Mayall ... Optical layout for KOSMOS and COSMOS. ...
... 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; . ...
СТУДЕНЧЕСКИЕ ОЛИМПИАДЫ МЕХМАТА МГУ И. В. Аржанцев, 1 В. И. Богачев, 2 А. А. Заславский, 3 В. Ю. Протасов, 4 А. М. Райгородский, 5 А. Б. Скопенков 6 n=1 Мы приводим задачи всемехматовских олимпиад 2001 (второй тур), 2008 и 2009 годов, а также указания, решения и комментарии. ... 2008-1. ... Обозначим через m(k) максимальное число попарно не ортогональных векторов из {-1; 0; 1}2k , ровно k координат каждого из которых нулевые. (а) Докажите, что m(k) 22k-1 при нечетном k. (б) Докажите, что 80 m(4) 140. ...
GENERAL] alias dbs configure focal_station nasmyth_a; \ rotator vertical_angle; \ rotator 180 alias imager configure focal_station nasmyth_b; \ rotator position_angle alias echelle configure focal_station nasmyth_b;\ rotator not_in_use alias wopen configure windscreen_control open alias wtrack configure windscreen_control vertical_only alias t ...
... click image to view discuss) . ... The star believed to be fueling the emissions of the Tulip nebula is HDE 227018. ... These images were processed by incorporating Ha, SII, and RGB data, taken over several nights during May of 2007. ... Ha: 10x30 minute subs, totaling 5 hours . SII: 7x30 minute subs, totaling 3 hours, 30 minutes . ... It appears somewhat smaller in amateur instruments, perhaps about 10 minutes of arc. ... 3/30/2007 . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
... What are mechanisms of secular evolution? ... Internal mechanisms of secular evolution may b e: · bar instabilities in dynamically cold disk galaxies , · deviations from circular rotation due to non-axisymmetric gravitation p otential effect which may b e produced by planar structures ... gravitational and energetic, effects of nuclear sup ermassive black holes they may provoke as attraction as well expansion, · certain gas expansion by galactic winds and fountains, etc ...
The questions in this transcript were asked during an oral history session with Frank J. Cepollina on June 11, 2013. ... This oral history interview is being conducted with Frank Cepollina at Goddard Space Flight Center [GSFC] in Greenbelt, Maryland, for the NASA Headquarters Oral History Project. ... Cepollina: What we?re trying to do with the International Space Station [ISS]?which has two beautiful, very nice, robotic arms and one big long 55-foot robotic arm?is robotics to a very high level. ...
Rep ort by the ESA-ESO Working Group on Galactic p opulations, chemistry and dynamics Abstract Between the early 40s, when Baade showed the first evidence for the existence of two distinct stellar populations, and today, with our Galaxy surprising us with new substructures discovered almost on a monthly basis, it is clear that a remarkable progress has been achieved in our understanding of the Galaxy, of its structure and stellar populations, and of its chemical and dynamical signatures. Yet, some questions
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Ссылки http://www.stecf.org/coordination/esa_eso/galpops/report.pdf -- 2038.4 Кб -- 04.09.2008 Похожие документы
... New York Times r ecorded, "A thin, lum i1925 Solar Eclipse (cont'd on Page 4) Pit Stops in Space: Off-World Filling Stations WHAT IF?? ... January 2015 WHAT'S UP IN THE SKY AAA Observers' January Guide By Tony Faddoul The Winter Hexagon's Bright Stars Most of us are familiar with the stars of the famous Winter Triangle Betelgeuse, Sirius, and Procyon but, there is another asterism of bright stars visible from December through March. ... Sources: earthsky.org; space.com. ...
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Ссылки http://www.aaa.org/EyepieceFiles/aaa/2015_01_January_Eyepiece.pdf -- 2691.3 Кб -- 22.02.2015 Похожие документы