... Among the objectives of Principal Components Analysis are the following. dimensionality reduction; љ . the determining of linear combinations of variables; љ . ... identification of groups of objects or of outliers. ... Finding a set of principal axes allows the objects to be adequately characterised on a smaller number of (artificial) variables. ... Reduction of dimensionality is practicable if the first new axes account for approximately 75 % or more of the variance. ...

. Search this album . Gallery . :: The First 100 Years . :: Workshops and computer labs . :: Richard Woolley and Jim Banham inspecting optтАж . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . View full size . Title: Richard Woolley and Jim Banham inspecting optical and mechanical components, optical munitions factory, 1944 . File name: OpticalMunita.jpg . Dimensions: 800 x 601 px . Page: 1 2 3 4 5 6 7 8 9 10 24 25 . Powered by Gallery 3.0.9 (Chartres) . Login

... OEM COMPONENTS . ... OEM OPTICAL COMPONENTS . ... Objective, Plan Achromatic, 4 X 0.12, BF . ... Objective, Flatfield Achromatic, 20 X 0.40, BF . ... Objective, Flatfield Achromatic, 60 X 1.00-0.70, Oil, Iris, BF . ... Objective, Flatfield Achromatic, 100 X 1.25, Oil, BF . ... Q-Plan™ Achromat Objective, 2.5 X 0.08, BF . ... Q-Plan™ Achromat Objective, 50 X 1.0-0.70, oil, iris, BF/DF . ... Q-Plan™ Achromat Objective, 100 X 1.25, oil, BF . ... Q-Plan™ Achromat Objective, 100 X 1.30, oil, iris, BF/DF ...

. This illustration shows the discovery that the outer Milky Way is a really a mixture of two distinct components rotating in opposite directions. The inner component of the Galaxy's halo spins clockwise with the galaxy's rotation at about 50,000 miles per hour. The outer component rotates counterclockwise to the galaxy at 100,000 miles per hour. SDSS-II, Masashi Chiba, Tohoku University, Japan

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The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . ... Listed Since October 22, 1998 . ... 203) 484-7705 . ... 203) 484-9016 . Web Site . ... Web . www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... ASCOM FITS driver/ . 08-Sep-2007 12:16 . ... 24-Jan-2006 13:45 . ... 2.6K . ... Apache/2.2.14 (Ubuntu) Server at vega.inp.nsk.su Port 80 ...

Общая Астрономическая Конференция > Практика > Астрономический наблюдательно-информационный портал > Хвостатые гостьи (все о кометах) . C/2011 J2-B (LINEAR) _ CK11J02b, ранее B component - отделившаяся часть ядра кометы C/2011 J2 (LINEAR) .. ... C/2011 J2-B (LINEAR) _ CK11J02b, ранее B component - отделившаяся часть ядра кометы C/2011 J2 (LINEAR), К -1, M -1, M -2, # 220 , # 3 , # 1 , # 6 , CBET 3979 , CBET 3986 . ... Элементы орбиты C/2011 J2-B (LINEAR) _ CK11J02b (ранее B component): . ...

... The IRAF 2 display server, XImtool, has been enhanced to allow arbitrary custom components to be dynamically integrated, permitting the functionality of the main display server program to be extended in arbitrary ways with no change to the core program. Components may include both computational and GUI elements; new components are interfaced as named instances of the Widget Server Client class and are fully integrated into the base server using messaging. ...

Find Similar Abstracts (with default settings below ) . ... Also-Read Articles . ... Parameters of the 41 Dra system components . ... 00/2001 . ... Stars: Binaries, Binaries: Fundamental Parameters, Binaries: Individual . ... 61B Based on spectral and speckle-interferometric observations of the system 41 Dra, model atmosphere parameters of the system components have been derived: component Aa - T eff = 6500K, lg g = 3.99, R = 1.87 R solar , component Ab - T eff = 6500K, lg g = 4.11, R = 1.61 R solar . ...

. --- Язык жестов - Дактильная азбука * Sign language - Dactyl alphabet --- . Выберите язык вводимого текста . Русский International Беларускi British Two Handed . Для перехода к следующей букве слова кликните мышкой по картинке после исчезновения стрелки под буквой . Введите в поле слово или отдельную букву . Дактильная азбука позволяет любое слово представить сочетанием жестов, каждый из которых обозначает соответствующую букву . Для начала демонстрации жестов нажмите кнопку . ї А. Воскресенский, 2000 .

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

Next: Extinction efficiencies: general behaviour Up: Optical properties of cosmic Previous: Optical properties of cosmic . It is now evident that observed interstellar extinction cannot be explain using particles of only one kind. ... The intensity of radiation after passing a dust cloud is equal to . ... The interstellar extinction is . ... Next: Extinction efficiencies: general behaviour Up: Optical properties of cosmic Previous: Optical properties of cosmic root 2003-04-09 ...

... Polar Cap Potential . ... The solar wind propagation delay time calculation used here is conceptually similar to the T(IMF) calculation in Kelly, et al. ... The older continuous data are from key parameter data files. ... Note: Very high values of Solar Wind Speed, Solar Wind Pressure, IMF Magnitude and Bz, and Polar Cap Potential are likely indications that WIND has reentered the Earth's magnetosphere; such data is not indicative of solar wind conditions or impending severe geomagnetic disruption. ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE ANCIENT UNIVERSE . c) The Age of Light from the Most Distant Galaxies: The "Time Machine" Effect . ... Thus we are actually seeing these galaxies not as they are today, but as they were billions of years ago. ... The Universe: An Overview | ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

The data in the Table on p. 5788 – 5789 embrace estimated parameters for 128 binary systems in near Earth, Mars crossing, main belt and Trojan orbits (more than 90% of corresponding objects are marked in the Table "Minor planet lightcurve parameters" as undoubtedly binary and in other cases as suspected binary). ... The data were presented by P. Pravec (Astronomical Institute, Academy of Sciences of Czech Republic) (see Pravec, P., Harris, A. W., 2007. Binary Asteroid Population. ...

Irregular phenomena in the Earth Pole oscillation process and temporal variations of geopotential Valery Bondarenko, Vadim Perepelkin s The observed irregular phenomena in the Earth Pole oscillation process are very variety. ... These phenomena indicated in the IERS data are the "abnormal" fluctuation of the Earth Pole coordinates which owing to changing of the geodynamical parameters gives negative result in interpolation and forecast of the first approximation mathematical model. ... Fig. ...

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It is shown that the Earth is a natural collector of extraterrestial nonsterile artefacts that could impact our planet. Artefacts from 1.2*10 6 nearby stars could have reached the Earth over its history, and could be agents for spontaneous interstellar panspermia, even if alien civilizations pollute space only at the current terrestrial rate. ... There could be alien artefacts on the Earth even in the absence of alien expeditions to the Earth, or of interstellar missions at all. ...

... Hierarchy and stability 3. Stability criteria for triple systems 4. ... The results for selected systems with weak hierarchy (physical properties of components) System HD 40887 AB+CD HD 76644 AB+CD HD 217675 AB+CD HD 222326 A?+BC HD 284419 A+BC Spectral types K5V, M0V, K4V, ?? ... More accurate results for selected systems HD 217675/6 ( And) Quadruple system More accurate results for selected systems HD 217675/6 Pair B1B 2 More accurate results for selected systems HD 217675/6 (Zhuchkov et al. ...