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1. Amateur Telescope Makers of Boston
... Submitted by Al Takeda on 04/06/2015 13:04:41 . March 17, 2015 Aurora plus constellation lines . This is the same aurora picture as above with constellation outlines. 30-second image, Samyang 14mm lens, f/2.8 imaged at f/5.6, Unmodified Canon T1i, Astronomik CLS Light Pollution filter, ISO 800, processed with Adobe Photoshop. 22: 18 hrs, 17 March 2015, Littleton, MA. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
[ Сохраненная копия ]  Ссылки http://www.atmob.org/gallery/showimage.php?id=2963 -- 3.2 Кб -- 10.04.2016
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2. 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. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~levay/color/index.html -- 11.6 Кб -- 27.10.2004
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3. The AstroStat Slog Blog Archive The Big Picture
... Our hometown rag (the Boston Globe ) runs an occasional series of photo collections that highlight news stories called The Big Picture. ... I talked about this automatized computer vision problem without a training set and with no rules of learning, to a friend and the advice was ?don?t go further. ... to a computer program some images can be defined as boring and some as interesting, so there may be a way to be able to search for interesting data in the vast amount of images. 10-13-2008, 8:30 pm . ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/2008/the-big-picture/index.html -- 23.5 Кб -- 01.03.2014
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4. ASP: Making Your Own Astronomical Camera
Turning the Camera Skyward . A reconfigured camera can take wide-field exposures of astronomical objects (constellations, the Milky Way, zodiacal light, moving artificial satellites, meteor showers, variable stars, etc.) to reveal much fainter objects and structures than seen by naked eye. ... This picture reveals objects more than 2.5 times fainter than can be seen by the naked eye, including not only stars but also the Orion nebula (M42), where new stars are being born. ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/50/camera3.html -- 12.8 Кб -- 02.10.2012
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5. GIMP: Floating Pictures on Shadows
One of the nice things about graphics programs like Adobe Photoshop and The GIMP, is that you can do many cool things with images, text, and textures. ... This is a tutorial on how to get a shadow effect under a picture. ... Figure 1: Our picture with a white border. ... Figure 2: Our black mask of the picture. ... This is our shadow image. ... The First Image is our original picture (Figure 1), our Second Image is the shadow (Figure 3.1), and the Mask Image is our black mask (Figure 2). ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/~megera/gimp/robinson/FloatPicture/ -- 5.4 Кб -- 22.12.2007
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6. Around the Cat's Paw Nebula | ESO
... Science User Portal . ... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... ESO 1-metre Schmidt telescope . ... Wide view centred on the CatтАЩs Paw Nebula (NGC 6334). ... Cat's Paw Nebula , Digitized Sky Survey 2 (DSS 2) , NGC 6334 . ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/public/images/eso1003b/ -- 94.9 Кб -- 10.04.2016
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7. Mike Bessell, MSSSO - Images
Most of these images were obtained by Mike Bessell, Michelle Buxton, Hwankyung Sung, Ralph Sutherland and Bob Watson at SSO using a 2Kx2K Site CCD behind a Nikon or Hasselblad lens or directly on the 1m telescope. A few images are from the Hubble Space Telescope. Some of the M42 images were obtained with the KPNO 1m and ESO NTT telescope. One image is a mosaic of IRAS images. ... Details of the CCD imaging program at MSSSO. ... antenna.jpg (53KB) . ... ngc6744.jpg (59KB) . ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/~bessell/thumbnails/ -- 13.1 Кб -- 01.10.2012
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8. XWare > APOD
... Sun vs Super Moon . 11.05.2012 . The Super Moon wins, by just a little, when its apparent size is compared to the Sun in this ingenious composite picture. To make it, the Full Moon on May 6 was photographed with the same camera and telescope used to image the Sun (with a dense solar filter!) on the following day. ... It was really not about superheroes as on May 6 the much touted Super Moon, the largest Full Moon of 2012, rose over this otherwise peaceful harbor. ... The Light of Stars . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/apod.html?page=9&d=2012-07 -- 15.4 Кб -- 12.04.2016
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9. Amateur Telescope Makers Of Boston - Atmob, AstroGuide Listing
The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . The ATMoB is a group of about 300 individuals in the greater Boston area. In addition to telescope making, our club members are involved in star, comet, and planetary observing. ... Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.net/astroguide/ag19.html -- 12.5 Кб -- 09.04.2016
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10. 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 . ...
[ Сохраненная копия ]  Ссылки http://www.vista.ac.uk/ -- 31.7 Кб -- 27.11.2014
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11. Making Flint Quieter
... Do not warn when variables are not explicitly declared. ... Do not check if a variable has been initialized before being used. If a variable is not in a DATA, COMMON, PARAMETER or SAVE statement, and if it is not a dummy subroutine argument, then Flint normally attempts to check that the variable is initialized before it is used. ... By default Flint warns if subroutine or variable names are longer than 8 characters, or if they contain underline or dollar characters. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/computing/software/miriad/progguide/node49.html -- 7.5 Кб -- 05.02.2013
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12. IR All-Sky Camera
Sloan Digital Sky Survey Telescope Technical Note 19910801 . ... It has long been apparent that an all-sky picture of clouds over an observatory site and available in near real-time would be a great benefit to personnel using a telescope. ... We have anecdotal evidence from J.T. Williams of MMTO and David Westfall, formerly of CFHT and now of New Mexico Institute of Mining, that video-rate 10 micron cameras are very effective at imaging clouds. ... The focal length of the mirror is 25 mm. ...
[ Сохраненная копия ]  Ссылки http://www.apo.nmsu.edu/Telescopes/SDSS/eng.papers/19910801/19910801.html -- 8.8 Кб -- 19.05.1998
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13. Columns REDLEAK, RLTYPE, and MAKER
... Special problems arise with filters intended to measure red leaks in blue and ultraviolet filters. ... The column named REDLEAK contains an 8-character string that specifies the treatment of red leaks in short-wavelength filters. Possible values are 'MEASURED' if the red leak is measured by observations through a filter that isolates the leak; 'BLOCKED' if a copper-sulfate or other blocking filter is used; or 'IGNORED' if the leak is neither measured nor blocked. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node614.html -- 7.5 Кб -- 23.02.1996
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14. Maximize a minimum filter | Astronomy.com
... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Maximize a minimum filter . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.com/magazine/adam-block/2015/04/maximize-a-minimum-filter -- 63.3 Кб -- 10.04.2016
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15. IBIS Gallery
... 2010 . ... The following images are mosaics obtained on 03 August 2010 at the National Solar Observatory/Dunn Solar Telescope with the Interferometric Bidimensional Spectrometer (IBIS). ... The final images are approximately 238 x 242 arcseconds, or 4 x 4 arcminutes, with a pixel scale of 0.0976 arcseconds per pixel. ... The images show a broad range of typical chromospheric structures, including sunspots, superpenumbra, plage, filaments, and quiet internetwork. ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/science/solar/IBIS/gallery/IBIS/Photos.html -- 24.3 Кб -- 24.11.2010
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16. Phil Plait's Bad Astronomy: Misconceptions
... Bad Astronomy . Misconceptions . ... I have a fun video on how to stand an egg on end on my blog at Discover Magazine . ... At the end of the show, one of the characters looks up the words "egg" and "equinox" on the web... and says it sent him to "thingsthatarewrong.com". ... Bad Astronomy : Only on the day of the Vernal (spring) Equinox, can you stand a raw egg on its end. Good astronomy : If you can stand a raw egg on end, it has nothing to do with the Equinox. ... 2008 Phil Plait. ...
[ Сохраненная копия ]  Ссылки http://www.badastronomy.com/bad/misc/egg_spin.html -- 31.2 Кб -- 09.04.2016
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17. Comments
XMM-Newton Science Analysis System . ... The centroid will be meaningless if the region does not contain a point like source. The format and name of the quality and error data have not been agreed yet. The region selection should be carried out by first unfurling the image in a pseudo event list, then making a call to evselect (there will be an f90-callable interface), then computing the relevant statistics on the filtered pseudo event list. XMM-Newton SOC/SSC -- 2006-06-28 ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/7.0.0/doc/regionstats/node9.html -- 3.6 Кб -- 28.06.2006
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18. Notes on Low-Pass Filter Coefficients
... The file lpf_coefficients.txt , which is created automatically as part of the filter generator's output, contains the actual values of the low-pass filter coefficients. ... The file contains a few comments about the filter in lines beginning with a "#". ... In the hardware, the gain of the filter is scaled by the "gain" comment at the beginning of the file (about 1.05) to accommodate for the window function and the truncated sin(x)/x to give a mean gain of 1.0 for the filter. ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/alfa/galfa/docs/galspect/signalproc/lpfcoefficients.html -- 8.3 Кб -- 04.10.2004
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19. Meade Series 4000 Broadband Nebular Filters
... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...
[ Сохраненная копия ]  Ссылки http://www.meade.com/catalog/meade_4000/meade_series_4000_nebular_filters.htm -- 29.2 Кб -- 06.10.2007
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20. rtftohtml Users Guide - 4 Special Processing
... 4.4 Imbedding HTML in a Document . In the following discussion of SPECIAL processing  , I will assume that rtftohtml has not been customized. If it has, the text styles used to create special effects may be different. ... Normally, if your RTF document contained the text "<cite>hello</cite>", the translator would output this as: "&lt;cite&gt;hello&lt;/cite&gt;". ... If, however, you want the <cite></cite> to be interpreted as HTML markup, you must format the tags using Hidden and Shadow. ...
[ Сохраненная копия ]  Ссылки http://comet.sai.msu.ru/docs/rtftohtml/rtftohtml-4.html -- 4.8 Кб -- 23.08.1996
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