Next: Introduction . ... This work reports results on intercomparison of image restoration algorithms, when used in the specific context of stellar fields imaged by the HST WFPC. Properties as fidelity to the original image and photometric linearity, as well as computation performance, were evaluated. Keywords: image restoration, deconvolution, image processing, HST, photometry . Introduction . ... Results . ... Fri Apr 15 16:19:48 EDT 1994 ...

... The TRACE images may be used without restrictions in publications of any kind. ... These two images, taken on 18 November 2000 at 15:54UT and 16:11UT, respectively, show such an event: the red circle in the image to the left shows a region where many loops are cooling, with bright loop tops (the intensity scales with the square root of the image to reduce the dynamic range). ... See also a collection of images related to the Sun, other cool stars, and solar-terrestrial effects . ... Images | ...

... Non-NGC Images . ... Globular cluster in Scorpius (M80)..... image ..... caption . ... Globular cluster in Scorpius (M4)..... image ..... caption . ... Globular cluster in Oph (M107)..... image ..... caption . ... Nebula..... image . ... Globular cluster in Hercules (M13)..... image ..... caption . ... Globular cluster in Ophiuchus (M12)..... image ..... caption . ... Infrared-bright galaxy in Ophiuchus..... image ..... caption . ... Globular cluster in Ophiuchus (M10)..... image ..... caption . ...

... Up: Algorithms . ... The imaging problem can be described as an optimizing problem in mathematics. ... Computer simulations of rotating modulation collimator imaging show that the quality of images from this method is better than that from the traditional cross-correlation method. ... The imaging problem is: . ... The results show that this algorithm can be used in the imaging problem and usually results in a better image than that obtained from a traditional method such as cross-correlation. ...

... 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 . ...

... Sun images . ... September : 2013 . ... Image of Sun's chromosphere obtained 09.09.2013 at 07:12 UT in Kanzelhoehe Solar Observatory (Austria) . ... Image of Sun's photosphere obtained 09.09.2013 at 23:47 UT with HMI instrument on board SDO spacecraft . ... Image of Sun's magnetic field obtained 09.09.2013 at 23:47 UT with HMI instrument on board SDO spacecraft . ... Image of Sun's transition region obtained 09.09.2013 at 23:39 UT with AIA instrument on board SDO spacecraft . ... Image of solar wind...

... Several image memories are associated with each image display station. Thus it is possible to have several images loaded in the image display at the same time and to switch quickly from one channel to the other. Images can be loaded into any of the image memories. ... load an image in channel 0 . ... display memory channel 0 . ... LOAD/IMAGE - load an image into image memory . ... CLEAR/CHANNEL - erase contents of an image channel . ... BLINK - blink between two different image memories . ...

This WWW form allows the user simplified access to images produced by the NRAO/VLA Sky Survey (NVSS). This service determines which NVSS image is desired based on a celestial position and returns either the image directly or a Web page with a link to the file. ... The NVSS Postage stamp (small FITS file) server can be used to obtain images with other geometries.) ... Web browsers use external viewers to display files like FITS images which they do not understand. ...

Dr. Phil Plait , aka "The Bad Astronomer" . ... Images . ... Bad Astronomy site . The following are high-resolution images suitable for promos, newspapers, brochures, and the like. Clicking on the thumbnail image will bring up the high resolution image. High resolution (1.3 Mb) . Medium resolution (550 kb) . ... Dr. Plait giving a TV interview at NASA's Goddard Space Flight Center about the transit of Venus in 2004. ... Dr. Plait posing with a model of the Apollo 11 landing site. ...

... Image extraction is enabled by setting the name of the output file using the parameter imageset . The name of the columns to use for the and axes of the image are set using the parameters xcolumn and ycolumn . ... If no WCS information is available for a column, then the CTYPE keyword for this axis of the image is set to the name of the column, and the other WCS keywords are set to reflect the range and binning of this column, as is done for SPEC* keywords in spectral extraction. ...

Новости компании PENTAR . ... Встречайте новые 'внедорожники' - PENTAX Optio WG-2 и Optio WG-2 GPS! PENTAX RICOH IMAGING COMPANY с гордостью представляет новые цифровые компактные внедорожники PENTAX Optio WG-2 и PENTAX Optio WG-2 GPS. ... Кроме того, камера Optio WG-2 GPS оснащена усовершенствованным GPS-модулем. ... В течение всего двух недель (с 26 января по 8 февраля) PENTAX RICOH IMAGING COMPANY уже анонсировала выпуск следующих камер: Optio VS20 , K-01 , Optio WG-2 и Optio WG-2 GPS . ...

Кольцо южного полярного сияния, вид из космоса . 21 сентября 2005 г . ... Зеленое светящееся кольцо, охватывающее Антарктиду, - это южное полярное сияние. Его "зажгли" заряженные частицы, вылетевшие с поверхности Солнца во время недавней серии мощных вспышек, начавшейся 7 сентября. По данным наблюдений, благодаря этим вспышкам сентябрь 2005 года стал самым активным месяцем в жизни Солнца за последние 14 лет (точнее, начиная с марта 1991 г.). ... Предыдущий документ - Следующий документ . ...

... Images and Data from the Shared Skies Partnership . ... Open access to selected images and data . Restricted access to user data . Restricted access for schools . Restricted access for the astronomy lab . Other Data and Image Resources . Sky View (internet virtual telescope) . SIMBAD Astronomical Database . ... International Astronomical Union Circulars (restricted access) . Sloan Digital Sky Survey Release 8 . Multimission Archive at Space Telescope . ...

Permitted Context: %text . ... The <IMG> tag is used to incorporate in-line graphics (typically icons or small graphics) into an HTML document. This element is NOT intended for embedding other HTML text. ... Browsers that cannot display in-line images ignore the IMG element unless it contains the ALT attribute. ... Take values TOP or MIDDLE or BOTTOM, defining whether the top or middle or bottom of the graphic should be aligned with the baseline for the text line in which the IMG element appears. ...

... Home Education Workshops at Adorama Astro Imaging Workshop: Deep Sky Astro Imaging with a DSLR ? September 14, 2014 . ... Astro Answers . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Presented by€а Adorama €аFor the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Up to higher level directory . 31.jpg 56 Kb Mon Feb 3 16:20:38 1997 JPEG Image Mor01.jpg 38 Kb Mon Feb 3 16:20:38 1997 JPEG Image Mor02.jpg 34 Kb Mon Feb 3 16:20:38 1997 JPEG Image Mor03.jpg 52 Kb Mon Feb 3 16:20:39 1997 JPEG Image Mor04.jpg 55 Kb Mon Feb 3 16:20:39 1997 JPEG Image Mor05.jpg 49 Kb Mon Feb 3 16:20:39 1997 JPEG Image Mor06.jpg 57 Kb Mon Feb 3 16:20:39 1997 JPEG Image Mor07.jpg 43 Kb Mon Feb 3 16:20:39 1997 JPEG Image Mor08.jpg 39 Kb Mon Feb 3 16:20:40 ...

... Camera (cold) going up to observing level for insertion into Telescope using the handling tool (blue). July 2007 . image: VISTA_IR_Camera_to_Telescope_2.JPG . ... Camera being moved from its stand in the lower floor of the Enclosure below the Azimuth floor, using the handling tool (blue). image: remove camera from stand.jpg . ... Camera inside the upper part of the enclosure after being lifted up to the Azimuth floor on its handling tool (blue). image: camera reaches az floor.jpg . ...

The AstroGuide . ... Other Sites . ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Bill McLaughlin's CCD Imaging site. Many color deep sky images and descriptions of imaging techniques plus ARGO observatory. Last Update August 28, 2005 . Listed Since August 07, 2002 . ... Web Site . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

. Best HST images . Galaxies . Planetary Nebulae . Gaseous Nebulae

Standard analog magnetograms (20 mm / sec) are presented in the form of digital images, . ... Observatory, . ... 1949 , 1950 , 1951 , 1952 , 1953 , 1954 . ... 1951 , 1952 , 1953 , 1954 , 1955 , 1956 , 1957 . ... 1950 , 1951 , 1952 , 1953 , 1954 , 1955 , 1956 , 1957 , . ... 1950 , 1951 , 1952 , 1953 , 1954 , 1955 , 1956 , . ... The project was conducted in 2003 by the International Council for Science ( "Rescue of Old Analogue Magnetograms by converting to digital images" , ICSU Grant–2003 Project). ...