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1. Colorful Clouds Of Carina
... Colorful Clouds Of Carina . ... Credit Copyright: Hubble Heritage Team ( AURA / STScI ), NASA Explanation: Tumultuous clouds of the Carina Nebula , 8000 light-years away, glow in planet Earth's southern sky . Striking and detailed, this close-up of a portion of the famous nebula is a combination of exposures through six different filters taken with the Hubble Space Telescope's Wide Field Planetary Camera 2 in April of 1999. ... Publications with keywords: clouds - dust - carina nebula . ...
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Ссылки http://www.astronet.ru/db/xware/msg/1162744 -- 15.6 Кб -- 10.11.2006
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2. APOD: 2001 June 17 - Colorful Clouds Of Carina
... 2001 June 17 . Colorful Clouds Of Carina . ... Striking and detailed, this close-up of a portion of the famous nebula is a combination of exposures through six different filters taken with the Hubble Space Telescope 's Wide Field Planetary Camera 2 in April of 1999. ... Exposures made with different narrow filters, as in this case , are translated to a visible color where shorter wavelengths are assigned bluer and longer wavelengths assigned redder colors. ... About APOD | ...
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Ссылки http://www.sai.msu.su/apod/ap010617.html -- 5.0 Кб -- 01.10.2012
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3. 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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4. 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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5. 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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6. ASP: Beacons in the Gloom
... In one situation, we can use light from quasars to probe the material between us and them because that light may pass through one or more galaxies or gas clouds on its way to us. The gas inside the galaxies or the intergalactic clouds acts then as a filter, absorbing selected wavelengths from the quasar light. ... Light from a quasar must pass through clouds of gas and even faint galaxies -- each leaving its imprint on the light -- before we receive it here on Earth. ... Gravitational lensing . ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/46/quasars3.html -- 11.1 Кб -- 02.10.2012
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7. http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/ISM/Carina.txt
... STScI-PRC00-06 LIGHT AND SHADOW IN THE CARINA NEBULA Previously unseen details of a mysterious, complex structure within the Carina Nebula (NGC 3372) are revealed by this image of the "Keyhole Nebula," obtained with NASA's Hubble Space Telescope. ... This region, about 8000 light-years from Earth, is located adjacent to the famous explosive variable star Eta Carinae, which lies just outside the field of view toward the upper right. ...
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Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/ISM/Carina.txt -- 4.8 Кб -- 30.01.2001
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8. Spatial Region Boundaries
Describes how spatial region boundaries are handled. The golden rule for spatial region filtering was first enunciated by Leon VanSpeybroeck in 1986: . ... With this in mind, the rules for determining whether a boundary image pixel or table row are assigned to a region are defined below. For image filtering, pixels whose center is inside the boundary are included. ... That is, an row is inside the boundary without regard to its integerized pixel value. ...
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Ссылки http://hea-www.harvard.edu/RD/funtools/regbounds.html -- 7.3 Кб -- 01.10.2012
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9. Meade Series 4000 Photo-Visual Color Filters
... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...
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Ссылки http://www.meade.com/catalog/meade_4000/meade_series_4000_filters_02.htm -- 21.5 Кб -- 06.10.2007
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10. 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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11. The hidden fires of the Flame Nebula* | ESO
... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... FLAMES . ... 100 Hours of Astronomy . ... IMAX€о 3D Film Hidden Universe . ... This image, the first to be released publicly from VISTA, the worldтАЩs largest survey telescope, shows the spectacular star-forming region known as the Flame Nebula, or NGC 2024, in the constellation of Orion (the Hunter) and its surroundings. ...
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Ссылки http://www.eso.org/public/images/eso0949a/ -- 96.8 Кб -- 10.04.2016
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12. Venus Picture List
Venus in visible light (violet filter) 50k gif ; 25k jpg . ... image from Pioneer Venus 15k jpg ; 28k jpg ( caption ) . ... 7 pancake volcanoes, alpha region 227k gif ; 327k jpg . ... Lada Regio, 47 deg S, 25 Long, showing mountains and craters 121k gif ; 321k jpg . ... Gula Mons and Cunitz crater, flat image of gulacun.gif 250k gif ; 178k jpg . ... Crater Farm, Lavinia Region, small 107k gif ; 147k jpg . ... Central Ovida region, 1 deg s by 83 deg 191k gif ; 531k jpg . ... Pictures .. ... Venus .. ...
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Ссылки http://www.iki.rssi.ru/nineplanets/pxvenus.html -- 19.8 Кб -- 18.03.1998
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13. BBSYN
... BBSYN is used to set the frequency for the BBC or digital filter assigned to each baseband channel (subband channel in EVLA terminology). ... All baseband channels assigned to the same physical BBC should be assigned the same frequency. ... For the VLBA DAR and MkIV systems, the baseband frequency must be set on even 10 kHz frequencies. ... The PFB personality of the RDBE, ( DBE = RDBE_PFB ) has rather rigid baseband frequency options. ... Argument: Up to 16 frequencies in MHz. ...
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Ссылки http://www.atnf.csiro.au/people/Tasso.Tzioumis/sched/BBSYN.html -- 10.0 Кб -- 10.04.2016
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14. VISTA - Visible and Infrared Survey Telescope for Astronomy
... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...
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15. Colour Filter On A CCD - an Astronomy Net CCD Equipment and Techniques Forum
CCD Forum Message . Forums: . ... CCD Tips and Techniques | Post . ... Colour Filter On A CCD . ... I was wondering if you could help me with a question I have about colour filters on CCD's: . For a CCD that is using a bayer colour filter on top of the pixel array, i have seen two different ways that this has been arranged: . ... www.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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Ссылки http://www.astronomy.net/forums/ccd/messages/103.shtml -- 13.7 Кб -- 09.04.2016
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16. 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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17. Space Telescope-European Coordinating Facility
... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...
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18. PlanУ?te de Fomalhaut : ALMA fait mentir Hubble | Ciel et Espace
... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Accueil PlanУ?te de Fomalhaut : ALMA fait mentir Hubble . ... Le premier rУ?sultat scientifique de l'observatoire ALMA met en doute la dУ?couverte de la planУ?te Fomalhaut b par le tУ?lescope spatial Hubble. ... Т? En combinant les observations faites par ALMA de la forme du disque avec les modУ?les numУ?riques, nous sommes parvenus Уљ dУ?finir trУ?s prУ?cisУ?ment la masse et l'orbite de chacune des planУ?tes ТЛ, a dУ?clarУ? ...
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Ссылки http://www.cieletespace.fr/node/8839 -- 31.0 Кб -- 09.04.2016
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19. http://crydee.sai.msu.ru/ftproot/pub/misc/doc/pm5/pm5a_inf.txt
Here is a description of the Filter/Driver Pack Plus release from Aldus. ... The Macintosh Filter/Driver Pack Plus includes several new and updated filters, including import filters for Microsoft Works 3.0 and MacWrite Pro files, as well as the most recent LaserWriter driver, version 8.1.1. ... The Filter/Driver Pack Plus also includes a patcher utility which will update PageMaker 5.0 to version 5.0a. This patcher corrects a handful of reported customer problems. ...
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Ссылки http://crydee.sai.msu.ru/ftproot/pub/misc/doc/pm5/pm5a_inf.txt -- 7.5 Кб -- 12.05.1995
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20. Светофильтры - Celestron LPR (Light Pollution Reduction), Baader UHC-S
... 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) . ...
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Ссылки http://www.shvedun.ru/filters.htm -- 33.2 Кб -- 09.04.2016
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