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... Credit Copyright: NASA 's Goddard Space Flight Center , CI Lab Explanation: What happens when a star gets too close to a black hole? ... Although angularly unresolved, variations in high energy light indicate that some of the star became shredded and reformed into a disk swirling around the dark abyss. ... Publications with keywords: black hole - accretion disk . Publications with words: black hole - accretion disk . ... Two Black Holes Merge . When Black Holes Collide . ...

... The most important tool you have to see the universe is not the large light buckets that are proliferating, but rather your eyes. ... Light enters the eye through the cornea, passes across the aqueous humor (the liquid behind the cornea), passes through the pupil and through the lens. ... After passing the lens, the light then crosses the "vitreous Humor" a jelly-like substance that fills the inner eye, and reaches the retina, the light sensitive tissue at the back of the eye. ...

Eliminating Light Pollution . ... Low Pressure Sodium . ... Low Pressure Sodium bulbs are the most efficant, use the least energy in producing light and have very low running costs. ... Because of this Low Pressure Sodium lighting is only suitable for places like streetlights, security lighting or floodlighting where colour definition is not important. ... It is very efficant, being second only to Low Pressure Sodium Lights. ... Both the luminaires shown above use high pressure sodium lights. ...

... The damage to NIFS has freed up the RSAA instrumentation team to concentrate on the timely delivery of the Gemini South Adaptic Optics Imager (GSAOI). ... GSAOI is the second instrument that ANU is building for Gemini. ... GSAOI Website: http://www.mso.anu.edu.au/gsaoi/ NIFS Website: http://www.mso.anu.edu.au/nifs/ RSAA Website: http://www.mso.anu.edu.au/ Australian Gemini Project Office Website: http://www.ausgo.unsw.edu.au/ Gemini Public Information Website: http://www.gemini.anu.edu.au/public/ . ...

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 Unit Telescopes Overview - This page is outdated, an update is in process.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 Secondary mirror (M2 Unit) - This page is outdated, an update is in process.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

... Telescopes ћ Binoculars ћ Microscopes . Meade Ultra-High Transmission coatings (UHTC ) Group . ... Meade Standard Coatings: The optical surfaces of all Meade telescopes include high-grade optical coatings fully consistent in quality with the precision of the optical surfaces themselves. ... These specialized, and extremely advantageous, coatings are offered here as the Meade Ultra-High Transmission Coatings (UHTC) group, a coatings group available optionally on many Meade telescope models. ...

... 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 | ...

... Another option is to buy slides of astronomical objects at different wavelengths to show students why astronomers use different bands of the spectrum to bring out specific characteristics in celestial objects. ... He then uses the camera to scan the entire classroom, asking students to identify what they are seeing. ... Once students see light in action, they can investigate its properties - such as frequency, wavelength, and interference - with wave experiments. ...

... Производитель: Arte Lamp . ... Коллекция: Picture Lights II . Артикул: A5007AP-4SS . ... Тип лампочки (основной): Галогеновая . Тип цоколя: G9 . ... Раздел на сайте: Типы/Бра и подсветки/Подсветка для картин . ... Подсветка для картин . ... Новое наименование: Подсветка для картин Arte Lamp Picture Lights II A5007AP-4SS . ... Тип: Ноутбук . Тип экрана: Глянцевый . ... Тип памяти: DDR3 . ... Тип видеопамяти: GDDR3 . ... Тип видеоадаптера: Дискретный . ... Тип аккумулятора: Li-Pol . ...

... The WFPC2 CCDs have a small b ut significant charge transfer efficiency (CTE) problem which causes some signal to be lost when charge is transferred down the chip during readout. This has the effect of making objects at higher row numbers (more charge transfers) appear fainter than they would if they were at low row numbers. The effect depends on the temperature of the CCDs. ... It is also possible that proportional losses for fainter stars, at least with no background, may be larger. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... It's semi-common knowledge that stars twinkle and planets don't. By semi-common, I mean that a lot of folks know that, but I also mean it isn't strictly true. Stars twinkle because we see them from the bottom of a sea of air. ... These small bundles of air act like little lenses, bending light as it passes through them. ... What we see is the light from the star flickering. ...

... November 22, 1998 . The High Energy Crab Nebula . ... UIT , NASA . ... The Crab Nebula is so energetic that it glows in every kind of light known. ... In the center of the Crab Nebula lies the powerful Crab pulsar - a spinning neutron star with mass comparable to our Sun but with the diameter of only a small town . ... The Crab still presents mysteries today as the total mass of the nebula and pulsar appears much less than the mass of the original pre-supernova star! ... About APOD > . ...

... SONG: INFINITY ( - Calvert - Brock - ) I used to be of human kind, I had a life to lead But now I'm frozen in a dream My life is lost it seems She turned the key Of endlessness and locked me In a dream, Infinity Infinity so beautiful Has turned my soul to ... got to unwind your mind, you've got to unwind your mind Slip that switch on, your face has got a twitch on Fuses are blown now you're just doing fine Air-conditioned, sicro-analysed, very nearly human, ...

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

... 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 ...

Next: NUMBER of PASSES Up: Tape Management Previous: TAPE HANDLING at SCAN Contents . Tapes for the Mark III and VLBA systems come in two nominal lengths, 9600 ft and 18000 ft. ... The following table gives the recording times per pass to expect with these tape speeds and recording rates: . RECORDING TIMES for 1 pass on VLBA and Mark III tapes. ... For Mark III, the longer tapes will hold 3.37 times as much data per pass as the shorter tapes. ...

... In principle, two observers on the ground can tell, by comparing the position of the same auroral arc against the background stars. ... The display stretches across Canada; just below it, in the middle of the picture, are the lights of Chicago, next to Lake Michigan. ... The Canadian scientific satellite Isis-2 (1971) carried an auroral imaging camera and discovered the diffuse aurora, a broad ribbon around the auroral oval, too spread-out to be noticed from the ground. ... Auroral Acceleration . ...

... The 200 km wide shadow of the total eclipse went from Turkey, crossed Black Sea and Abhazia, and its centrum passed near the highest Caucasus mountain Elbrus. ... The Special Astrophysical Observatory was located at the edge of the shadow, and a single interior contact was seen from the upper observational site at the 6-m telescope BTA. ... This light was stronger in the beginning and in the end and weaker in the middle of totality. ... When will this end?" ... Beginning of the total phase. ...