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1. Amateur Telescope Makers of Boston
This is a new popup window - close it when you are done . Submitted by Al Takeda on 12/02/2013 14:08:17 . Comet Lovejoy (C/2013 R1) – November 30, 2013 . Comet Lovejoy rises at 1 am and is the brightest comet in the early morning sky. ... It passed close to the Earth on November 20. Lovejoy is now moving away and is growing dimmer. 30 images x 120-second subframes, Total= 1 hour. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
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Ссылки http://www.atmob.org/gallery/showimage.php?id=2508 -- 3.6 Кб -- 10.04.2016
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2. IKI IPL home page
You can also see this page in Russian with using KOI8 (X Windows) or CP1251 (MS Windows) Cyrillic coding. The Laboratory supports the space TV experiments, mainly in the planetary exploration missions. ... Image Co-registration . ... PHOBOS mission - Martian satellites investigations. Phobos on the Martian limb, the image from Phobos-2 probe from 02/28/89. ... Russian Space Bulletin. ... Last modified at June,26 1997 Alexey Kuzmin: akuzmin@mx.iki.rssi.ru . Back to IKI home page ...
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3. The AstroStat Slog Blog Archive Magnitude [Eqn]
... Archives . ... Differential Emission Measure [Eqn] . ... Astro 301, class 1, and it took all of 20 minutes of talk about stellar magnitudes to put that notion to permanent rest. ... Now, it turns out that the human eye perceives brightness on a log scale, so magnitudes are numerically similar to log (brightness). ... frac{5}{2}\log_{10}\left(\frac{f_{object}}{f_{standard}}\right) \,,$$ . ... frac{5}{2}\log_{10}\left(\frac{L_{object}}{4 \pi d^2}\frac{1}{f_{standard}}\right) \,.$ ... Chandra Blog . ...
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Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/2008/eotw-magnitude/index.html -- 22.9 Кб -- 01.03.2014
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4. worker - Apache HTTP Server
... Directives | ... Apache HTTP Server Version 2.4 . ... The most important directives used to control this MPM are ThreadsPerChild , which controls the number of threads deployed by each child process and MaxRequestWorkers , which controls the maximum total number of threads that may be launched. ... Two directives set hard limits on the number of active child processes and the number of server threads in a child process, and can only be changed by fully stopping the server and then starting it again....
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Ссылки http://www.arcetri.astro.it/manual/en/mod/worker.html -- 15.7 Кб -- 19.11.2015
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5. Low Surface Brightness Galaxy Gallery
In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...
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Ссылки http://zebu.uoregon.edu/sb2.html -- 4.8 Кб -- 26.05.2000
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6. Comments
... Time related attributes: . observation related: DATE_OBS and DURATION required by XMM-SOC-ICD-0006-SSC ([ 3 ]), write also DATE_END and OBSSTART , OBSSTOP . ... SAS_VERBOSITY should be set to `Sparse' (4) for normal processing and `Verbose' (5) for more detailed processing. Values of 6 and higher may yield quite a number of messages related to rejected events (MIPs) depending on CCD number and instrument mode. SAS_MEMORY_MODEL should be set to `high' for normal processing. ...
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Ссылки http://xmm.vilspa.esa.es/sas/8.0.0/doc/epframes/node15.html -- 4.4 Кб -- 01.07.2008
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7. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 4: WFC3 Images: Distortion Correction and AstroDrizzle > 4.2 Distortion Corrections and Image Combination . ... In order to produce images that appear uniform for uniform illumination, the WFC3 flat fields include the effect of the variable pixel area across the field. ... AstroDrizzle relies on the Image Distortion Correction Table ( IDCTAB ) and the Detector to Image Distortion Correction ( D2IMFILE, UVIS only) reference files for a description of the WFC3 distortion. ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter4_astrometry3.html -- 127.9 Кб -- 12.04.2016
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8. Basic Processing
Next: Auto quotient Up: ATNF Spectral Analysis Package Previous: Scantable constructor Index . In the following section, a simple data reduction to form a quotient spectrum of a single source is followed. ... Auto quotient . Separate reference and source observations . Time average separate scans . ... Auto-baselining . Average the polarisations . ... Frequency Frame Alignment . Malte Marquarding 2007-08-16 ...
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Ссылки http://www.atnf.csiro.au/computing/software/asap/userguide/node27.html -- 4.3 Кб -- 05.02.2013
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9. ESO - Release of Additional Pipeline-processed UVES Data
... Observatory . ... Science . ... Science Users Information > Science Publications > Science Announcements > Release of Additional Pipeline-processed UVES Data . ... Observing Facilities . ... Observing with ESO Telescopes . ... Data Handling and Products . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... In addition to the previously announced UVES data release, over 10 000 individual spectra, acquired 2003 - 2013, are now available from the Science Archive Facility...
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Ссылки http://www.eso.org/sci/publications/announcements/sciann13058.html -- 23.7 Кб -- 10.04.2016
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10. amateur astronomy | Astronotes - Part 7
Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Posted on January 30, 2012 | 1 Comment If you look towards the west just after sunset this February you will see a very bright star in the darkening sky. ... Continue Reading.. ... 1 Comment After last yearтАЩs success, BBC2тАЩs Stargazing Live returned to our screens this month for another three nights of astronomy wonders.€а Holding the reins again were the charismatic Professor Brian Cox [ ] . ... Posted on December 5, 2011 | ...
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Ссылки http://www.armaghplanet.com/blog/tag/amateur-astronomy/page/7 -- 56.0 Кб -- 09.04.2016
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11. Uses of Class ij.process.FloatProcessor (ImageJ API)
... Packages that use FloatProcessor . ... Methods in ij.plugin.filter that return FloatProcessor . ... ShortProcessor. toFloat (int channelNumber, FloatProcessor fp) . Returns a FloatProcessor with the same image, no scaling or calibration (pixel values 0 to 65535). abstract FloatProcessor . ... Returns a FloatProcessor with the image or one color channel thereof. ... FloatProcessor. toFloat (int channelNumber, FloatProcessor fp) . ... Returns a FloatProcessor with one color channel of the image. ...
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Ссылки http://www.astro.louisville.edu/software/astroimagej/imagej/api/ij/process/class-use/FloatProcessor.html -- 24.3 Кб -- 02.12.2010
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12. DSCN0637 ? Amateur Astronomers Association of New York
... Home Other-Events DSCN0637 . ... Lecture Series 2014-2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... This Month's Sky . ... This Month's Sky - 2015 . This Month's Sky - January 2015 . ... 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 . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...
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Ссылки http://www.aaa.org/dscn0637/ -- 96.9 Кб -- 10.04.2016
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13. source comment
... The source exhibits a mas-scale structure which, according to the USNO multi-epoch monitoring at 2.3 and 8.4 GHz over the period from 1994 July through 1998 April, undergoes considerable changes in the brightness distribution and positions of the major structural features. Our image is qualitatively consistent with the structural pattern of the source. ... We note a difference of ~90 in position angles of secondary components in our image and the 5 GHz VLBI image by Shen et al. 1998). ...
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Ссылки http://www.vsop.isas.ac.jp/VLBApls/J0457-2324.comment.htm -- 2.3 Кб -- 16.10.2000
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14. Work Scan Program + Data Viewer (IDL widget)
For the calibration of RATAN-600 data you will need to Download Nobeyama Fluxes (1, 2, 3.75, 9.4, 17 GHz): year 1999 2000 2001 2002 2003 . Brief description of Work Scan . Main functions of processing, realized in the program are: . ... Correction of various (not fatal) defects of data; . ... Calculating of the lower enveloping curve or an average scan from observations data for a few days; . ... COMMENT This table contains the set (TFIELDS) of 1-dimensional (TFORM# . ... AZIMUTH = 'float' / . ...
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Ссылки http://mavr.sao.ru/hq/sun/software.htm -- 8.5 Кб -- 24.02.2010
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/sun/software.htm -- 8.5 Кб -- 24.02.2010
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/sun/software.htm -- 8.5 Кб -- 24.02.2010
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[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/sun/software.htm -- 8.5 Кб -- 24.02.2010
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/sun/software.htm -- 8.5 Кб -- 24.02.2010
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15. The Astronomy Shop - Cards - by Astronomy Net
The Astronomy Shop . ... Shop | ... Cards | ... Sold in sets of 8 cards (two of each image) with envelopes in a Keepsake Wallet. ... Starbirth Clouds in M-16, Starbirth in the Trifid Nebula, Live Cycle of Stars in Galactic Nebula NGC 3603, and Inside the Lagoon Nebula. ... Majestic Spiral Galaxy NGC 4414, A Grazing Encounter of Two Spiral Galaxies, Infant Stars Ring Core of Galaxy NGC 4314, and Galactic Silhouettes. ... We have bulk pricing available. ... www.astronomy.net . About Astronomy Net | ...
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Ссылки http://www.astronomy.net/shop/cards/index.html?item=22 -- 13.8 Кб -- 09.04.2016
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16. XID: Cross-Association of ROSAT/Bright Source Catalog
[ CATS home ] [ Back to CATS list ] [ ftp ] . 2000ApJS..131..335Rutledge+ . Division of Physics, Mathematics and Astronomy MS 220-47, California Institute of Technology, Pasadena, CA 91107 rutledge@srl.caltech.edu, rb@astro.caltech.edu, prince@srl.caltech.edu
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Ссылки http://www.sao.ru/cats/doc/RBSC-USNO.html -- 8.2 Кб -- 18.03.2015
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17. Bright Supernova Bright Supernova
. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001
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Ссылки http://www.sai.msu.su/mirrors/isn/snimages/ -- 2.4 Кб -- 05.02.2013
[ Сохраненная копия ] Ссылки http://www.rochesterastronomy.org/snimages/ -- 2.5 Кб -- 18.01.2015
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[ Сохраненная копия ] Ссылки http://www.rochesterastronomy.org/snimages/ -- 2.5 Кб -- 18.01.2015
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18. Recreating Einstein Level One Processing Exposure Masks and Background Maps in
... This paper describes the main algorithms used by the Einstein Level One processing to create the exposure masks and the background maps for Einstein IPC images, and how these algorithms were recreated in the IRAF environment. Our goal was to recreate the algorithms used by the Level One Processing to create exposure masks and background maps for Einstein Image Proportional Counter (IPC) data (cf. sections 2.5 and 2.7 of Harnden et al. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/vanstoned.html -- 11.6 Кб -- 03.11.2000
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19. http://www.mrao.cam.ac.uk/~kjbg1/lectures/lect1_1.pdf
... Luminosity (L) · · · · A source's luminosity is the power that it emits in radiation. ... NB Astronomers often say `flux' when they mean `flux density' · SI units are Wm-2Hz -1 -26 filter · Also used are Jy 10 Wm-2Hz -1 E= РРРF d dA dt Specific Intensity, Surface Brightness (I) · Specific intensity (or surface brightness) is the power received (or emitted) per unit area per unit frequency per unit solid angle. ч F at surface of a spherical source = I · · Specific intensity is independent of distance...
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Ссылки http://www.mrao.cam.ac.uk/~kjbg1/lectures/lect1_1.pdf -- 117.5 Кб -- 07.10.2002
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20. In the Arms of M83
... In the Arms of M83 . ... Credit Copyright: Hubble Legacy Archive , ESA , NASA ; Processing and additional imaging - Robert Gendler Explanation: Big, bright, and beautiful, spiral galaxy M83 lies a mere twelve million light-years away, near the southeastern tip of the very long constellation Hydra . ... Publications with keywords: M 83 - spiral galaxy - star formation . Publications with words: M 83 - spiral galaxy - star formation . ... NGC 2683: Edge On Spiral Galaxy . NGC 6188 and NGC 6164 . ...
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Ссылки http://www.astronet.ru/db/xware/msg/1254579 -- 15.4 Кб -- 11.11.2011
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