... Image Quality of the VLT . Total Optical Control . First light for the ESO VLT unit telescope 1 occurred during the workshop. ... The image shown (Figure 1 ) here was obtained with the VLT on May 16, 1998, in red light (R band), i.e. while the mirror was still uncoated. ... In this diagram (FIgure 2), the measured image quality of the VLT UT1 astronomical images is plotted versus the ``seeing", as measured by the Seeing Monitor, a small telescope also located on top of the Paranal Mountain. ...

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• Space Telescope-European Coordinating Facility
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... Team fee: 470.– Euro/team . ... Euro/person . ... Euro . Observers: 940.– ... Small delays in reports or applications: the correspondent fees are 485 euro (970 euro for observers). ... The fee covers the board, lodging, transportation, excursions, sport, ceremonial, and general organization expenses since 12:00 October 16 th till 12:00 October 24 th . ... Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the International Astronomy Olympiad (IAO) . ... Updated 01.07.2010. ...

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Next: CCD Operation Up: Charge Coupled Devices (CCDs) Previous: Charge Coupled Devices (CCDs) . ... However it is only now that a number of important X-ray astronomical applications of CCDs have reached critical development stages, so that this is an appropriate time to review the application of space-borne CCD instruments to cosmic X-ray astronomy, and highlight the particular concerns which are being addressed for X-ray instruments, as distinct from optical applications. ...

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Next: The Arecibo Observatory and Up: Astronomer's Guide to the Previous: Astronomer's Guide to the . The 305-m William E. Gordon radio telescope at Arecibo is the largest single-dish radio telescope on our planet, and is available to the global scientific community for astronomical observations at wavelengths between 6 m and 3 cm (frequencies of 47 MHz to 10 GHz). ... In Section 2 of this document, we provide an introduction to the Observatory, the telescope and its instrumentation. ...

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... Its companion is a hot, white dwarf, a stellar zombie of a burned-out star. ... Image and illustration files are available on the Internet at: http :// oposite.stsci.edu / pubinfo /pr/ 1999 /32 or via links in http :// oposite.stsci.edu / pubinfo /latest.html and http :// oposite.stsci.edu / pubinfo /pictures.html Higher resolution digital versions (300 dpi JPEG and TIFF) are available at: http :// oposite.stsci.edu / pubinfo /pr/ 1999 /32/pr-photos.html http :// oposite.stsci.edu / pubinfo /pr...

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The telescope configured for measurements of exoplanet transit light curves is seen from the north side in this May 2010 photo. Lower portions of the dome have been insulated to reduce daytime heating by radiation from the warm metal dome. ... The interior of the dome is seen soon after the encoder upgrade in February 2007. ... Karen Collins, a research astronomer specializing in exoplanets, helped with the telescope installation in August 2006. ... kielkopf at louisville dot edu . ...

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... Ciel Espace, le magazine qui vous guide toujours plus loin . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Ils photographient le ciel au Very Large Telescope . ... Astronomes ou ing†йnieurs, ils profitent de travailler sous le meilleur ciel du monde pour s'adonner †а leur passion de la photographie. ...

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... Viewing the Universe with Infrared Eyes: The Spitzer Space Telescope . Dr Giovanni Fazio . ... He then lead the development of large balloon-borne telescopes for far-infrared astronomical observations above the atmosphere, as Principal Investigator for the 1-Meter Balloon-Borne Far-Infrared Telescope and also the first infrared astronomical telescope to fly on the Spacelab II flight of the Space Shuttle. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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Next: *makevig, vigdata* - Apply Up: Calibration Previous: Calibration . Vignetting is a decrease in the effective area of the telescope mirror with increasing off-axis angle. It is due to a combination of a real decrease in the mirror area and a degradation of the mirror reflection efficiency at larger angles of reflection. ... Both the ROSAT and Einstein exposure maps exposure maps are corrected for vignetting. љ . makevig, vigdata* - Apply Vignetting Correction to an image . ...

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... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... space flight . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Space: women neednт??t apply? ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

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... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Another method is to take very fast exposures of an object; in effect taking images faster than the seeing can blur the image. ... A third, relatively new method, is to try to detect just how the seeing is affecting the image, and actually warp the telescope mirror to compensate. ... The advantage of the second method is that it's easier to make many small mirrors than one big one. ...

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JournИes SystХmes de RИfИrence Spatio-Temporels , St Petersburg, Russia, 22-24 Septembre 2014 Optical monitoring of QSO in the framework of the Gaia space mission F. Taris (1), G. Damljanovic (2), A. Andrei (3), A. Klotz (4) , F. Vachier (5) (1) Observatoire de Paris - SyRTE, France , (2) Astronomical observatory of Belgrad, Serbia, (3) Observatorio Nacional MCT, Brasil, (4) UniversitИ de Toulouse, France (5) Observatoire de Paris ­ IMCCE, ...

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You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...

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... It was with this spirit that Norman Oberle suggested that area amateurs should have the benefit of a large aperture (25 inches or larger) telescope with sufficient focal length for excellent visual work. ... Norm Oberle and Jim Thomas spent 2,000 hours grinding and polishing to work the mirror into an oblate spheroid. ... Norm worked with Jim Thomas in a basement workshop. ... The Richland club is situated in the Hidden Hollow camp ground, and has long held meetings in the clubhouse on the grounds. ...

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... ACCESSORIES . ... OEM COMPONENTS . ... ABOUT LOMO . ... MICROSCOPES . ... OEM OPTICAL COMPONENTS . ... MICROSCOPE APPLICATION GUIDE AND MODEL SELECTOR . ... LOMO stereo microscopes deliver crisp images for such demanding applications as industrial inspection, electronic component manufacturing, biological and botanical studies, classroom teaching, etc. ... LOMO manufactures the widest range of microscope accessories and components such as objectives, eyepieces, condensers, illuminators, stages, etc....

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... Освоение космоса (Модератор: Chepurny ) > . E-ELT (European Extremely Large Telescope) . ... Благодарностей: 0 . ... 13 Май 2010, 12:14:53 ? Европейский чрезвычайно большой телескоп" (European Extremely Large Telescope - E-ELT) будет построен в горах пустыни Атакама, объявила на днях Европейская южная обсерватория. ... Ответ #1 : 13 Май 2010, 12:29:34 ? ... Цитата: ds40a от 13 Май 2010, 12:29:34 Field of view: 10 arcminute diameter . ... Цитата: ds40a от 13 Май 2010, 13:28:02 И я о том-же. ...

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Optical Communication Experiment using Very Small Optical transmitter with SLR station National Institute of Information and Communications Technology, Japan Space Communications System Laboratory Hiroo Kunimori and VSOTA TEAM Sep 24, 2012 WPLTN Technical Workshop@St.Petersburg, Russia Table of Contents Backgound:HODOYOSHI Project JapaneseHODOYOHI= Reasonable Reliability Engineering to develop series of 50kg Satellite. ... How to share wavelength communication beam and ranging beams. ...

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... Home The Club AAA Membership . ... Lecture Series 2014-2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . ... 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 . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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GERSHTEIN-ZELDOVICH BOUND AND COSMOLOGICAL RESTRICTIONS ON NEUTRINO MASS A.D. Dolgov 20-24 December, 2004 COSMOLOGY AND ASTROPHYSICS AT HIGH ENERGIES (dedicated to 90th anniversary of Ya. ... Astronomy is sensitive now to m (a few)в0.1 eV. based on combined data on LSS and CMBR. ... Right-handed neutrinos - result in stronger bound. ... 10 Massive neutrinos and CMBR Angular spectrum of CMBR does not feel directly presence of light neutrinos - they are practically relativistic at recombination. ...

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• Russian Turkish 1.5-m telescope

... In the western literature this method is now called ``coupled dipole method" (CDM). ... Thus, a system of equations relative to the fields scattered by the elementary domains can be obtained, and summation of these fields gives the total scattering field. ... A subtle difference between both methods is in the fact that in the first method one works with the fields which excite a dipole (without the field of the dipole), whereas in the second method one uses the real fields in a given domain. ...

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