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1. Solstice Celebration
... 21.12.2002 . ... Credit: SOHO - EIT Consortium, ESA , NASA Explanation: Aloha and Season's greetings! On December 22nd, at 01:14 Universal Time (December 21, 3:14pm Hawaii-Aleutian Standard Time ), the Sun reaches its southernmost point in planet Earth's sky marking the final season change for the year 2002. In celebration, consider this delightfully detailed, brightly colored image of the active Sun . ... December . ... Publications with keywords: Sun - eit - extreme ultraviolet - solstice . ...
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Ссылки http://www.astronet.ru/db/xware/msg/1181362 -- 14.9 Кб -- 21.12.2002
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2. APOD: 2004 March 25 - An Orion of a Different Color
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2004 March 25 . An Orion of a Different Color . ... But the striking picture combines images taken through three separate filters, each designed to record different emission lines - light from Sulfur, Oxygen, and Hydrogen atoms glowing in the tenuous nebular gas. ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . ...
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Ссылки http://www.sai.msu.su/apod/ap040325.html -- 5.1 Кб -- 02.10.2012
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3. APOD: 2000 June 21 - Solstice Celebration
... 2000 June 21 . Solstice Celebration . ... Each individual image highlights a different temperature regime in the upper solar atmosphere and was assigned a specific color; red at 2 million, green at 1.5 million, and blue at 1 million degrees C. The combined image shows bright active regions strewn across the solar disk, which would otherwise appear as dark groups of sunspots in visible light images, along with some magnificent plasma loops and an immense prominence at the righthand solar limb. ...
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Ссылки http://www.sai.msu.su/apod/ap000621.html -- 4.7 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/sun/sun3col_thompsoneit_big.html -- 4.6 Кб -- 06.12.2000
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[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/sun/sun3col_thompsoneit_big.html -- 4.6 Кб -- 06.12.2000
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4. Making HST Pictures: Illustrations
Making HST Pictures: Examples and Illustrations . ... These illustrations represent some of the steps and techniques used to produce “pretty pictures” from HST images. ... TIFFs (ftp) . ... Separate images are exposed through different color filters. ... An alternate way to make color images . ... Eight bit (one byte) images contain 256 different values that may be represented by 256 shades of gray or 256 arbitrary colors from a color map (or palette) of all possible colors. ...
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Ссылки http://www.stsci.edu/~levay/color/index.html -- 11.6 Кб -- 27.10.2004
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5. Astronotes | Armagh Planetarium's astronomy news from across the Universe -
... Armagh Planetarium . ... Universe . ... Space Flight . ... December . ... No Comments To get the latest on space and astronomy go to Carnival of Space. ... No Comments Carnival of Space, the regular and vital guide to space and astronomy blogs is hosted by a different site every week. ... Newer Entries . Hello, IтАЩm Colin, welcoming you to Astronotes, the PlanetariumтАЩs official blog. Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...
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Ссылки http://www.armaghplanet.com/blog/page/39 -- 53.9 Кб -- 09.04.2016
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6. http://www.eso.org/public/news/eso1249/kids/
... Well, there are at least a million times more galaxies in the Universe than there are human beings! ... These newcomers are bigger and brighter than anything else in space, and if that wasn't interesting enough, they also glow bright green! This has led astronomers to name them 'green bean' galaxies (look at the little green bean-like spot in the middle of this space picture). ... We think that they shine so brilliantly because of a black hole at their centre. ...
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Ссылки http://www.eso.org/public/news/eso1249/kids/ -- 10.9 Кб -- 11.04.2016
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7. M42 Color Images
... As an experiment, I made some three-color images of Messier 42, more commonly known as the Great Nebula of Orion. ... green enhanced . ... halfsize or fullsize . ... Each image is a ``true color'' composite of three monochromatic images, in which the red, green, and blue intensities each correspond to the intensity of one of the original images. ... The HST image is assembled from different filters than mine: red is Nitrogen [II] at 6583 , green is H-alpha at 6563 , and blue is O [III] at 5007 . ...
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Ссылки http://www.naic.edu/~gibson/m42/ -- 7.0 Кб -- 19.08.2004
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8. http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BA6149A58-A920-49AF-96EE-0FAD66E4F93D%7D
. The image is a composite of separate exposures made by the WFC3 instrument on the Hubble Space Telescope. Three filters were used to sample broad wavelength ranges in the near infrared. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: F105W (Y) blue; F125W (J) green; F160W (H) red. NASA/ESA/G. Illingworth/R. Bouwens/ HUDF09 Team
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Ссылки http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BA6149A58-A920-49AF-96EE-0FAD66E4F93D%7D -- 3.6 Кб -- 10.04.2016
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9. OptInt PmWiki : MROIFastTipTilt / Doc Man
... 1100 FTT/NAS . ... 1120 Camera . ... 1140 Camera Mount & Enclosure . ... 1170 Test Equipment . ... 1200 FLC . ... MRO-PLA-CAM-0000-0106 FTT/NAS & FLC Development Plan . ... MRO-ICD-CAM-1000-0109 "FTT/NAS,FLC-UTE" FTT/NAS & FLC to Enclosure ICD . MRO-ICD-CAM-1000-0110 "FTT/NAS,FLC-NOT" FTT/NAS & FLC to optical table ICD . MRO-ICD-CAM-1000-0111 "FTT/NAS,FLC-UT" FTT/NAS & FLC to UT optical ICD . ... Printable View of http://www.mrao.cam.ac.uk/projects/OAS/pmwiki/pmwiki.php/MROIFastTipTilt/DocMan) ...
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Ссылки http://www.mrao.cam.ac.uk/projects/OAS/pmwiki/pmwiki.php/MROIFastTipTilt/DocMan?action=print -- 14.7 Кб -- 10.04.2016
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10. Kp Index: Classification of Days
The selection of the quietest days (Q-days) and most disturbed days (D-days) of each month is deduced from the Kp indices on the basis of three criteria for each day: . ... In order to indicate such a situation, selected days which do not satisfy certain absolute criteria are marked as follows. ... A selected disturbed day is considered not really disturbed and marked by an asterisk ( * ) if Ap less than 20. ... January 2000 - recent . January 1990 - December 1999 . ...
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Ссылки http://www.iki.rssi.ru/magbase/REFMAN/KP_INDEX/quietdst/index.htm -- 5.0 Кб -- 21.12.2007
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11. ATNF Media Release - December 1, 1998
... The expansion is measured as a number called the Hubble Constant . ... Our value is about 20% lower than the one got with the Hubble Space Telescope in 1994," said Dr Jim Lovell, leader of the team that made the measurement. The Hubble Constant is named after American astronomer Edwin Hubble, who in the 1920s found that other galaxies were moving away from ours. ... The Hubble Constant links the galaxy's distance with its speed." ... A short run-down on the Hubble Constant: . ...
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Ссылки http://www.atnf.csiro.au/news/1dec98/1dec98.html -- 8.4 Кб -- 01.10.2012
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12. http://www.wdcb.ru/stp/data/geomagni.ind/Q-and%20D-days/qd.txt
International Q-Days and D-Days ---------------------------------------------------------------------------- Classification of Days (deduced from Kp indices) The selection of the quietest days (Q-days) and most disturbed days (D-days) of each month is deduced from the Kp indices on the basis of three criteria for each day: 1. ... In order to indicate such a situation, selected days which do not satisfy certain absolute criteria are marked as follows. ...
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Ссылки http://www.wdcb.ru/stp/data/geomagni.ind/Q-and%20D-days/qd.txt -- 3.1 Кб -- 07.06.2012
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13. Главная - Астрономия и Телескопостроение
... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...
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14. Magnitudes and Colors
Astronomers usually measure the flux of an object by collecting light with a telescope, sending it through a known filter, and then determining the power. ... But astronomers usually give their photometric results in terms of magnitudes. ... Astronomers define an absolute magnitude that is independent of the distance of a star and only depends on the intrinsic properties of the object: the absolute magnitude is the magnitude the star would have if it were 10 parsecs away from the Earth. ...
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Ссылки http://www.sao.ru/cats/~satr/cosmo/magcolor.htm -- 4.1 Кб -- 18.11.1997
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15. http://zebu.uoregon.edu/1996/ph199/hw4.html
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Ссылки http://zebu.uoregon.edu/1996/ph199/hw4.html -- 2.0 Кб -- 29.10.1996
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16. Correction of the energy scale in specific pixels
... Ideally, this map contains the energy offset for each pixel (expressed in analog-to-digital units, adu). ... High-energy particles hitting the EPIC pn CCD during the offset map calculation may cause the affected pixels to get offset values which are incorrect by a few adu. ... Due to the specific method of deriving the offset map onboard, the affected areas occur often in blocks of four consecutive pixels along readout direction. ... The affected pixels usually get an offset which is too small. ...
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Ссылки http://xmm.vilspa.esa.es/sas/6.1.0/doc/epreject/node4.html -- 14.6 Кб -- 22.11.2004
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17. Mapping Pixel Values to Screen Intensity
To change the Scaling Function (how pixel values are binned into color levels): . ... For example, the basic grey-scale color map specifies no intensity for any color at the lowest color level, full intensity for all colors at the highest color level, with the red, green and blue intensities varying linearly for intermediate levels. ... At low bias, low color levels (i.e., low pixel values) will have non-zero intensities, while at high bias only high pixel values will have non-zero intensity. ...
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Ссылки http://hea-www.harvard.edu/RD/saotng/scale.html -- 6.3 Кб -- 01.10.2012
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18. Astronaut Bio: Michael Lopez-Alegria (11/2014)
... Michael E. Lopez-Alegria (Captain, USN, RET.) ... After his second mission, he led the International Space Station (ISS) Operations branch of the Astronaut Office. ... In October 2014 Lopez-Alegria became an independent consultant; he is based in Washington, D.C. SPACE FLIGHT EXPERIENCE: Mission Specialist (MS)-2, STS-73 Columbia (October 20 to November 5, 1995). ... The primary mission objective was delivery of the Expedition 6 crew to the ISS and the return of the Expedition 5 crew to Earth. ...
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Ссылки http://www.jsc.nasa.gov/Bios/htmlbios/lopez-al.html -- 7.6 Кб -- 07.07.2015
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19. ASP: Black Holes to Blackboards: Seeing the Light
... 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. ...
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Ссылки http://www.astrosociety.org/pubs/mercury/9801/lockwood.html -- 12.0 Кб -- 02.10.2012
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20. The Direction Assigned to Electric Currents
... The choice of which type of electricity is called "positive" and which "negative" was made around 1750 by Ben Franklin, early American scientist and man of many talents (the stamp on the left commemorates his role as first US postmaster--and colonial postmaster before that). ... Franklin knew of two types of electric charge, depending on the material one rubbed. ... Later, when electric batteries were discovered, scientists naturally assigned the direction of the flow of current to be from (+) to (-...
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Ссылки http://www.cosmos.ru/mirrors/stern/Education/woppos.html -- 9.3 Кб -- 24.03.2006
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