... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : "We're light years more advanced than our competition!" ... Even the closest astronomical object, the Moon, is 400,000 kilometers away! ... A beam of light will travel 9,500,000,000,000 kilometers in one year. This distance is defined as a light year ; the distance light travels in a year. ... This is another example of Bad Astronomy; like a light year, a parsec is a unit of distance, not time (to be specific, it equals 3.26 light years) . ...

... JWST . The End of the Dark Ages: First Light and Reionization . ... Science Blog . ... Science . JWST Science . ... The Assembly of Galaxies . ... In addition to the supernovae of the first light stars, JWST will also be able to detect the first galaxies and star clusters. The JWST First Light theme science goal is to find and understand these predicted first light objects. ... An observational approach to identify these objects has been described in the JWST SWG First Light white paper . ...

... Credit: STS-39 Crew, NASA Explanation: A background of distant stars, sinuous and spiky bands of Southern Lights (Aurora Australis) , and the faint glow of charged plasma (ionized atomic gas) surrounding the Space Shuttle Discovery's engines give this photo from the STS-39 mission an eerie, otherworldly look. ... April . ... Publications with keywords: space shuttle . Publications with words: space shuttle . ... APOD: 2007 April 1- Americans Defeat Russians in First Space Quidditch Match . ...

... November 24, 1997 . Jet Near Light Speed . ... Jets of protons and electrons that shoot away from objects such as quasars and black holes appear to travel at speeds approaching this maximum speed, though. Such jets carry tremendous energy and can ram straight through interstellar material . In the above frame from a computer simulation , a jet traveling only 98 percent of light speed rams and mixes with interstellar material. ... About APOD > . ...

Blackholes2 Forum Message . Forums: . ... Post . ... Speed Of Light . ... Post Message | ... Posted by Jon Yardley on November 17, 2002 14:32:57 UTC . But surely it cannot go faster than the speed that it set out in because there is no way of it accelerating any faster than the speed of light! ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Villains and Heroes of Lights and Lighting Fixtures . If we are to reduce the effects of light pollution, we must learn about the types, both good and bad, of fixtures used in outdoor lighting. ... In fact, this type of fixture is often chosen for this very reason. ... Although these lamps are not very energy efficient, and they are often found in older, inefficient fixtures that enhance light pollution, they still exist in great abundance in most locations and are still sold by the millions. ...

... IR-Light Emitters & Detectors . Russian High Technologies . ... Infrared detectors and light emitters are key components that are used for applications including radiometry, guidance, gas analysis, medicine etc. ... Devices are operating in spectral range of 1.0-5.0 um and have high efficiency. ... Light Emitters . ... Spectral response of PRX 27.. ... Applications . ... Among the features there are high speed response, high efficiency, wide temperature range. ... IR-Light Emitters and Detectors | ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... Цвет: красный . Новая серия облегченных двухобъемных рюкзаков Light со съемным алюминиевым каркасом. ... Размер: 55 л . MJX F48 2.4GHz 4CH 6-axis Gyro Remote Control Helicopter MEMS Gyro . ... Детям до 7 лет следует использовать небольшое количество зубной пасты и . ... Размер BRAND: 8 лет (128 см) . Размер BRAND: 10 лет (140 см) . Размер BRAND: 12 лет (152 см) . Размер BRAND: 13 лет (158 см) . Размер BRAND: 16 лет (168 см) . Размер BRAND: 17 лет (176 см) . ...

... Following the Observatory's initiative in 2002, drawing attention locally to the issue of light pollution and the problems it produces both for astronomy and awareness of the night sky, and for saving energy and improving the natural environment, Mark Bailey made a presentation on light pollution, on 7 May 2003, to the Armagh City and District Council Environment, Health and Recreation Committee. This focused specifically on the growing problem of light pollution in the City of Armagh. ...

... Per le scuole . Attivit†а e eventi . ... Vademecum per CONSIP . ... PROGRAMMA . Da Luned†м 9 a Venerd†м 13 novembre . ... VISITE PER LE SCUOLE ALL'OSSERVATORIO . Esperimenti sulla natura della luce e osservazioni del Sole al telescopio . ... Gioved†м 12 novembre . ... Programma (in pdf) . Sabato 14 novembre . ... I SEGRETI DELLA LUCE: GIOCHIAMO CON LA SCIENZA . Conferenza spettacolo , teatro didattico ed esperimenti sulla luce e i colori . ... Per tutti gli altri eventi : . ...

... Обзор LPR фильтра. Впечатления от наблюдений с LPR фильтром. ... Характеристики цветных фильтров Baader-Planetarium . Мой перевод pdf- файла о фильтрах с сайта Baader-Planetarium (379 кб) . ...

SAS home . ... List of SAS threads . This thread contains a step-by-step recipe to extract a light curve of a point-like source for all the X-ray cameras, and to start a simple analysis tool. ... If the following files are available: a) RGS event list; b) RGS source list, just a single evselect command allows a user to create a light curve, corresponding to the extraction regions in the spatial and order images. set up your SAS environment (following the SAS start-up thread ) . ...

... A wonderful site where the debate about the nature of light sits. ... Shadow and Light science activities - A short list of activities for students about light and shadow designed by an undergraduate Education major in New Foundland. ... Projecting Shadows - Fantastic interactive site about how to make shadows from the Light/Block/Shadow technique. ... The Energy Story: Solar Energy - Aimed towards children, this is a short introduction about solar energy. ... You Light Up My Life | ...

... Tonight's Sky . ... Observing . ... Sky this Month . ... Observing Podcasts . ... Astronomy for Kids . ... Sky Events . ... Why do physicists think gravity travels at the speed of light? ... According to Newton, gravity acts instantly that is, "action at a distance" and so, from that viewpoint, gravity travels at an infinite speed. Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Before the modern era of technological astronomy, to know anything about the Universe beyond our planet we relied on light. ... Historically the two rival ideas were that light was either a stream of tiny bullet-like particles or a wave wobbling its way through space. ... The light we see (visible light which is not the tautology it sounds) is only part of the electromagnetic spectrum, a great sweep of radiations which also includes radio, infra-red, ultra-violet, x-rays and gamma rays. ...

п'? . PubliГї le 01/09/2013 par Jean-paul Mission . Date : 27/07/2013 . Lieu : Pemuteran - Bali . MatГїriel de prise de vue : Olympus E-620 Objectif Zuiko 7-14 mm . Commentaires : Speed of light!

... The Zodiacal light seen above the western horтАж . Sidebar Left . ... Title: The Zodiacal light seen above the western horizon nearly two hours after sunset . Description: It is produced by light scattered from interplanetary dust near the plane of rotation of the planets around the Sun. ... The Zodiacal light seen above the western horizon nearly two hours after sunset It is produced by light scattered from interplanetary dust near the plane of rotation of the planets around the Sun. ...

... Astrophysics Group . ... Aperture Synthesis with Light . ... MRAO Telescopes . ... Stars ? ... The astronomer?s desire to see things in ever greater detail is thwarted at optical wavelengths by the Earth?s atmosphere: making optical telescopes larger does not provide more detail in the images. ... The Cambridge Optical Aperture Synthesis Telescope (COAST) has been developed to meet the very demanding task of imaging the surfaces of individual stars and studying the interaction of close pairs of...