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http://www.naic.edu/~phil/optics/hornpos/121102/sb_surveyresults.pdf.
http://www.naic.edu/~phil/optics/hornpos/121102/sb_surveyresults.pdf.
1. optics
Optics includes the surveys and adjustments to the reflectors as well as the pitch, roll, and focus measurements. ... 080515: platform/tiedown motion during vlbi cal scan . ... Surveying the primary reflector . Surveying the dome position from AO9 . ... year 2002:Td inches/platform inch, TdPos vs temp at platform focus position. dec03: platform corner height vs za when looking at tower. jan10: dynamic load on tiedowns from platform motion. 22feb10: fit tiedown tensions using 2008,2009 data . ...
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Ссылки http://www.naic.edu/~phil/optics/optics.html -- 17.3 Кб -- 07.09.2015
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3. Johnson Space Center redirect
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4. Fixed Target Confirmation Chart FAQ
The following are some standard questions that observers have about their fixed target confirmation charts. ... Why doesn't my target appear to be centered on the cross hairs? ... How is proper motion handled? ... Target well centered . If your target is not perfectly centered in the cross hairs, see the questions below for why it may not be centered and how well centered it must be . ... So, targets to be acquired by STIS should appear well centered in the cross hairs on the confirmation chart. ...
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Ссылки http://www.stsci.edu/public/help/confirm-chart-fixed.html -- 8.4 Кб -- 16.05.2012
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5. The High-Z SN Search Description
The Doppler shift is the effect of sound increasing or decreasing in pitch as an object moves towards or away from you. ... Light works the same way, except light is shifted to redder colours when an object is moving away, and to blue colours when an object is travelling towards us. ... Almost every object he observed had its light stretched to redder colours, indicating essentially everything in the Universe was moving away from us. ... So the Hubble constant tells us how old the Universe is. ...
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Ссылки http://www.mso.anu.edu.au/~brian/PUBLIC/universe.html -- 7.5 Кб -- 01.10.2012
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6. MCCME: Moscow Center for Continuous Mathematical Education
... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...
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7. Select a circle around the central point source
Next: A box, to include Up: To produce a region Previous: To produce a region . select cursor and circle . When in the image window, the mouse now has a box shape with an arrow at the upper left corner. The mouse buttons act as follows: . LEFT - to move the center of the circle at the position of the arrow point. ... RIGHT - idle. center the circle at the point source by positioning the arrow point and clicking on the LEFT mouse button. A circle will appear at the arrow position. ...
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Ссылки http://hea-www.harvard.edu/PROS/PUG/node62.html -- 5.9 Кб -- 01.10.2012
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8. XWare > APOD
Astronomy Picture of the Day . ... The field of view spans nearly 2 degrees, or about 4 times the width of the Full Moon, toward the expansive southern constellation Centaurus. ... This meteor streaking toward the horizon through the early morning sky of January 3rd is from the annual Quadrantid meteor shower. ... Welcome to the International Year of Astronomy . ... Astronomers all over planet Earth invite you to experience the night sky as part of the International Year of Astronomy 2009. ...
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Ссылки http://www.astronet.ru/db/xware/apod.html?page=252&d=2015-11 -- 15.6 Кб -- 13.04.2016
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9. Баллистический центр Института прикладной математики им. М.В.Келдыша РАН
... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...
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10. Moving around the text
. There are a range of easy to use commands that provide a great degree of flexibility in how you move around the contents of the file you are editing. Many of these commands can be combined with a numerical value to extend their functionality. Move the cursor along a line . Move the cursor between lines . Move between text blocks . Move over the file .
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Ссылки http://comet.sai.msu.ru/UNIXhelp/vi/seven.html -- 2.1 Кб -- 17.01.1997
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11. Rotation range
... This document and the attached postscript figure document an analysis that I did to determine the optimum midpoint and required ranges for both the rotator and azimuth for the 2.5 M telescope. ... I simulate a series of drift scans on the sky for tracks that cover the northern survey area. These tracks cover the range in survey latitude of -60 to +60 degrees, spaced by 10 degrees. ... Along each track the azimuth, elevation, and position angle of the CCD is computed at 1 minute intervals. ...
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Ссылки http://www.apo.nmsu.edu/Telescopes/SDSS/eng.papers/19990127_RotationRange/19990127.html -- 7.2 Кб -- 27.01.1999
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12. APOD: October 24, 1997 - Moving Echoes Around SN 1987A
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. October 24, 1997 . Moving Echoes Around SN 1987A . ... WFPC2 , HST , NASA . Explanation: Yesterday's image highlighted reflective rings of light emitted by a supernova explosion. Today's pictures , taken over a year apart, highlight how these echoes are seen to move over time. ... About APOD > . ... NASA Technical Rep.: ...
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Ссылки http://www.sai.msu.su/apod/ap971024.html -- 4.4 Кб -- 02.10.2012
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13. Frames of Reference: The Centrifugal force
The other case of a moving frame of reference studied here is: . ... That is a force towards the center of rotation, of magnitude F centripetal = mV 2 / R where R is the radius of the circle of rotation and V is the velocity of motion around it. ... However, most people are aware of the outwards-pushing centrifugal force, the force which flings you away from the center of rotation in a car speeding around a corner. ... Next Stop: #24 Rotating Frames of Reference . ...
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Ссылки http://www.iki.rssi.ru/magbase/REFMAN/STARGAZE/Sframes2.htm -- 11.8 Кб -- 21.12.2007
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14. Astro-2 and the UIT Experiment
... Note on Filters: . ... NGC 3351 is a mostly face-on late type spiral galaxy. It is marked by a bar like feature in its central regions and a strong inner ring of star formation. ... The galaxy was imaged through the A1,B1 and B5 filters over a total exposure time of 1936 seconds. ... The galaxy was imaged through the A1 filter for 450 seconds and the B1 filter for 1084 seconds. ... The galaxy was imaged through the A1 and V1 filters over a total exposure time of 1200 seconds. ...
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Ссылки http://zebu.uoregon.edu/uit-t3.html -- 4.9 Кб -- 07.10.1996
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15. APOD: 2000 December 20 - Sgr A: Fast Stars Near the Galactic Center
... 2000 December 20 . Sgr A*: Fast Stars Near the Galactic Center . ... Explanation: Why are these stars moving so fast? Shown above is a time-lapse movie in infrared light detailing how stars in the central light-year of our Galaxy have moved over the past eight years. ... If these fast stars are held to the Galactic Center by gravity, then the central object exerting this gravity must be both compact and massive. ... About APOD | ...
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Ссылки http://www.sai.msu.su/apod/ap001220.html -- 5.1 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Stelle/SgrA.html -- 5.0 Кб -- 02.02.2001
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[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Stelle/SgrA.html -- 5.0 Кб -- 02.02.2001
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16. Motion in a Circle
... Electric Forces . 19.Motion in a Circle . ... In the absence of forces, motion in a straight line and constant velocity continues indefinitely. ... Each rotation the stone covers a distance . ... Since its velocity v equals the distance it moves in one second, one finds . ... while the actual motion brings it to some point D on the circle, whose center will be denoted by O. In the absence of forces, motion in a straight line and constant velocity continues indefinitely. ...
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Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Scircul.htm -- 12.1 Кб -- 02.06.2006
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Scircul.htm -- 12.1 Кб -- 22.12.2007
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[ Сохраненная копия ] Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Scircul.htm -- 12.1 Кб -- 22.12.2007
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17. ASP: To Every Season There is a Reason
... If the Earth is round, the Sun must be north of the equator in northern summer, and south of the equator in northern winter. ... From the Earth's perspective, the Sun is spiraling from north to south and back again along the ecliptic (see figure 7 ). ... The round Earth, at the summer solstice. ... If the rotation axis of the Earth is tilted with respect to its orbit, the equator bobs back and forth, causing the Sun to be north for half the year, and south for the other half (see figure 9 ). ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/29/season4.html -- 12.7 Кб -- 02.10.2012
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18. A Sensitive 1.5 GHz survey
... 145Kollgaard+ A 29.3 deg^2 region surrounding the north ecliptic pole (NEP; RA=18h00m, dec = 66^o30') was mapped with VLA at 1.5 GHz to support the deepest portion of the ROSAT all-sky soft X-ray survey. The resulting VLA-NEP survey catalog contains 2435 radio sources with flux densities in the range of 0.3-1000 mJy, including over 200 fainter than 1 mJy. ... Between 1 and 150 mJy the slope of the logN - logS relation is 0.68+-0.03. ... Table 2 gives the resulting VLA-NEP source catalog. ! ...
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Ссылки http://www.sao.ru/cats/doc/VLA_NEP.html -- 3.2 Кб -- 18.03.2015
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19. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...
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Ссылки http://www.badastronomy.com/bitesize/jetplane.html -- 21.9 Кб -- 09.04.2016
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20. nssdcftp
Coordinate Systems used for spacecraft trajectory description: . ... The HGI coordinates are Sun centered and inertially fixed with respect to an X-axis directed along the intersection line of the ecliptic and solar equatorial planes. ... Cometocentric (solar) Ecliptic Coordinate System (CSE) . ... CSE coordinate system for the SC POSITION: axis origin at comet center, X-axis to the SUN, Z-axis to ecliptic north pole, (X,Y)-plane is parallel to the ecliptic plane. ...
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Ссылки http://www.izmiran.rssi.ru/projects/space/VEGA/coorsys -- 4.6 Кб -- 21.01.2010
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