. Electron-Bombarded, Back-Illuminated CCD Sensors . For Low-Light-Level Imaging Applications . George M. Williams Jr. and Alice L. Reinheimer, . Scientific Imaging Technologies, Inc. Beaverton, OR 97075 . Table of Contents . Abstract . Introduction . EBCCD Performance: EBS Gain . EBCCD Performance: Resolution and CTF . EBCCD Reliability and Manufacturability . EBCCD, ICCD and CCD Low Light Level Performance Model . Video Rate 2/3 Inch EBCCD Design . Summary . References and Appendix A

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... 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 Unit Telescopes Overview - This page is outdated, an update is in process.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 Secondary mirror (M2 Unit) - This page is outdated, an update is in process.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 Coating Unit - This page is outdated, an update is in process. ...

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... Дни открытых дверей к юбилею САО РАН (12-14 апреля 2016 г.) . Международная конференция "Dark Ages and White Nights (Spectroscopy of the CMB)" (20-24 июня 2016 г.) . ... Международная конференция MULTI-SPIN GALAXIES - 2016 (26-30 сентября 2016 г.) . Международная астрономическая конференция "Физика звезд: от коллапса до коллапса" (3-7 октября 2016 г.) Архив . ... Подробнее.. ... 10.02.16 . ... БТА в реальном времени . ... Цейсс-1000 в реальном времени . ... Последнее обновление: 22/03/2016 ...

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. Back to Previous News Back to Equipment page . Siding Spring Survey Main Page . Equipment . Discoveries . Follow-up Astrometry with the 1.0-m at SSO . Previous News Items . Anglo-Australian Near Earth Asteroid Survey 1990-96 . Links .

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... Close inspection shows these strange columns of light occur over bright lights, and so likely are light pillars that involve falling ice crystals reflecting back these lights. ... The air was noted to be quite cold and indeed filled with small ice crystals, just the type known to create several awe-inspiring but well known sky phenomena such as light pillars , sun pillars , sun dogs , and moon halos . ... Publications with keywords: light - ice crystals . ... Light Pillars over Alaska . ...

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... 2014 December 28 . Unusual Light Pillars over Latvia . ... The above image and several similar images were taken with a standard digital camera in Sigulda , Latvia in late 2009. ... The air was noted to be quite cold and indeed filled with small ice crystals, just the type known to create several awe-inspiring but well known sky phenomena such as light pillars , sun pillars , sun dogs , and moon halos . ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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Blackholes2 Forum Message . ... Post . ... Light Pulses . ... Post Message | ... Posted by Herb S. on November 8, 2002 05:11:20 UTC . ... Speed of light - jon0902 - November 17, 2002 - 14:32 UTC . It does not accelerate- it has no mass - yaniru - November 18, 2002 - 01:42 UTC . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Some 13.7 billion years ago, a mere millionth of a second after the Big Bang, the first hydrogen and helium nuclei condensed out of a hot, dense soup of quarks and gluons. ... In the very last few kilometres some of the light was scattered by a myriad of water droplets (containing hydrogen nuclei which had existed almost since the Big Bang) slowly descending through the air following a rainshower. ...

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... Bionic eyes. If our eyes could see in different wavelength bands, this is what the Sun would look like. ... Visible light, crucial to photosynthesis, is a type of radiation. ... At the heart of this revolution is the recognition that light travels as a wave. ... Dreams of Fields . ... By the time the fields go from strong to weak and back to strong, the wave has moved a certain distance, known as the wavelength. ... Red light, blue light, infrared light, ultraviolet light, radio waves, x-rays ? ...

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... 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) . ...

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... A survey of Armagh was to be carried out in order to better determine how much money is wasted each year in Armagh on bad lighting. ... Bad Up Light . ... This information allowed more accurate estimates to be made of how much light is wasted in Armagh, and therefore how much money and coal is wasted, as well as how much carbon dioxide produced. ... Lights per metre . ... denote the average percentage of light wasted per luminaire, wasted meaning ineffective lighting (up, to the sides etc.) . ...

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LIGHT words and music by andrew eldritch The lights shine clear through the sodium haze The night draws near and daylight fades Ignore the voices discard the day For the brand new darkness for the bright new way Hit Well there have been better plans But none that I could ever understand Emerald signal the green on black The lights say move say never look back And so I find a place where I've never been seen Find another ...

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First: an organization relevent to all amateurs (and professionals): International Dark-Sky Organization . This group spends its energy helping protect dark skies, and educating the public, government, and utilities on the efficient use of lighting. ... International Amateur-Professional Photoelectric Photometry This group has been arranging amateur participation in astronomical projects via newsletter and local groups for some time, but doesn't have much of a web presence. ...

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Subject, Object and Problems of Astrophysics. Practical and Theoretical Astrophysics. ... Visual Telescope; Problems Which Are Solved with the Its Help. ... Resolution of Telescopes. ... Effectiveness of Telescope in Respect of Resolution. ... Optical Power of Telescopes for Star-like and Extensive Objects. Boundary Magnitude. Reasons of Light Dissipation in Telescopes. ... Spectral Instruments in Astrophysics. ... Basic Photometrical Ideas, Magnitudes and Their Measurement. ...

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The picture above was made with this demo POV file and this Mirror object POV file . ... This is a magnifying mirror with a light around it, on an articulated arm, designed for wall-mounting. ... Behind this mirror in the image are two more mirrors, one above showing the front, and one below showing the arm in a bent position, and the whole thing roated so that you are effectively looking "up" at it. ... The two images below show details of the base, and the back of the mirror. ...

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STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... MeadeтАЩs new LX70 Series offers high-quality German equatorially mounted telescopes with slow-motion controls and heavy-duty steel tripods. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Dedicated Accessories . ... Click here to locate the dealer near you. ...

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. back one page . previous slide . next slide

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... The Magnetic Sun . ... Galileo had guessed they were clouds floating in the Sun's atmosphere, obscuring some of its light. ... It turned out that the Sun has a polar field somewhat like the Earth's, but that it reverses its polarity during each 11-year cycle. ... Sunspot fields were evidently produced by electric currents, and it was well known that such currents could be generated by a " dynamo process ," by the motion of an electric conductor (e.g. the flow of solar plasma) through a magnetic...

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