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http://www.princetonastronomy.org/papers/losmandy_manual.pdf.
http://www.princetonastronomy.org/papers/losmandy_manual.pdf.
1. http://www.astro.louisville.edu/software/xmtel/archive/xmtel-5.2/BUGS
... The current version 5.2.1 will see only minor additional revisions through 2010. October 14, 2010 =============== To do: Add home on startup of bisque/mks Add southern hemisphere tracking direction change to bisque/mks Check southern hemisphere mappings in bisque/mks Check lower horizon limit Known problems on release of 5.2.1: With 64-bit OS's there are warnings from Motif on compilation. ... Pointing corrections, while available in software, are not fully tested. ...
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Ссылки http://www.astro.louisville.edu/software/xmtel/archive/xmtel-5.2/BUGS -- 2.8 Кб -- 14.10.2010
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2. ASP: Using Multicultural Dimensions to Teach Astronomy
... Activity 3: Measuring the Position of the Sun in the Sky . Purpose: To give students the opportunity to measure the position of the Sun in the sky using simple tools and methods. ... Alternatively, you may have students devise their own methods of relative measurement and apply them to measuring the position of the Sun in the sky. ... Rangi is the sky, and when the Sun is near Rangi's head it is summer in New Zealand. ... Read the Maori story to students. ... back to Teachers' Newsletter Main Page ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/53/multicultural3.html -- 12.7 Кб -- 02.10.2012
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3. http://hea-www.harvard.edu/ECT/pdf/stonecircles.pdf
Stonehenge and Timekeeping Something we have not talked about much in the Threads is the fact that the position of the sunrise on the horizon changes during the year. ... One of the best examples is Stonehenge, near Salisbury in England, which incorporates a certain special date into its design. ... The idea is that you stand in one place and watch the sunrise from that place on the special day. ... The two stones will always line up with the sunrise only on that special day. ...
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Ссылки http://hea-www.harvard.edu/ECT/pdf/stonecircles.pdf -- 41.0 Кб -- 26.10.1998
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4. strbs: Star Tracker BoreSight calculation
... strbs instrument=<instr> ra=<ra> dec=<dec> apos=<apos> odffixout=true|false . bstoolsout=true|false . ... Given the prime instrument instr and its viewing direction in terms of Right Ascension and Declination of the boresight + astronomical position angle strbs computes the viewing direction of the star tracker and associated position angle - result is written to stdout in verbose form (default) or as an odffix command line if odffixout =true or as an insbs command line if bstoolsout =true. ...
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Ссылки http://xmm.vilspa.esa.es/sas/8.0.0/doc/bstools/node4.html -- 4.5 Кб -- 02.07.2008
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5. Planetary alignment
. Yellow = Sun . Purple = Mercury . Pink = Venus . Blue = Earth . Red = Mars . Orange = Jupiter . Green = Saturn . The first point of Aries (the direction of the Sun as viewed from the Earth at the time of the northern vernal equinox) is towards the right. Relative sizes of Sun and planets are not to scale. Venus, Mars and Saturn will be within a triangle less than 3 degrees on each side on 2002 May 6th, as seen from the Earth. Other links Last revised: 2002 May 1st .
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Ссылки http://star.arm.ac.uk/~dja/planets/align6th.html -- 2.1 Кб -- 01.05.2002
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6. Meade Instruments Corporation - ETX-90EC and Autostar Frequently Asked...
... Meade Instruments Corporation . Telescopes ћ Binoculars ћ Microscopes . ... ETX-90AT and Autostar Frequently Asked Questions . ... Which of the Autostar alignment procedures is recommended for viewing celestial objects right out of the box? When using Autostar, how important is leveling the telescope and pointing it to true north before alignment in the Alt/Az or Polar modes? ... Meade ETX-90EC Astro Telescope . ... Copyright 2006 Meade Instruments Corporation, All Rights Reserved. ...
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Ссылки http://www.meade.com/support/etxautofaq.html -- 19.0 Кб -- 22.08.2008
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7. XWare > APOD
... With a coronal mass ejection (CME) headed our way and an immense sunspot group tracking across the solar photosphere, skygazers should be on the alert. Chandra Deep Field . ... The brightest comet in recent years has continued into the outer Solar System and is now further from the Sun than Saturn. ... Jupiter, Saturn and Messier 45 . ... Brilliant Venus falls out of the evening sky as March ends, but Jupiter and Saturn remain well up above the western horizon. ... Barred Spiral Galaxy NGC 2903 . ...
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Ссылки http://www.astronet.ru/db/xware/apod.html?page=56&d=2002-09 -- 15.2 Кб -- 12.04.2016
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8. Frequency Frame Alignment
... When time averaging a series of scans together, it is possible that the velocity scales are not exactly aligned. ... ASAP> scans.freq_align() ASAP> av = average_time(scans) . ... In these cases run with perif=True and all rows of a source will be aligned to the same frame. ... ASAP> scans.freq_align(perif=True) . To average together data taken on different days, which are in different scantables, each scantable must aligned to a common reference time then the scantables averaged. ...
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Ссылки http://www.atnf.csiro.au/computing/software/asap/cookbook/node44.html -- 5.1 Кб -- 05.02.2013
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9. Polar Alignment Using The Star Drift Method - an Astronomy Net Article
Polar Alignment Using The Star Drift Method . Articles | ... This method with, a little practice, can give you reasonable polar alignment within one half hour. ... If the star drifts northward, your scope is west of the pole. ... Remember that as your adjustments get you closer to the pole, the star will drift slower and you must wait longer to detect a north-south drift. If the star drifts south, you are east of the pole and you must turn the mount towards the west. ... www.astronomy.net . ...
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Ссылки http://www.astronomy.net/articles/16/ -- 16.2 Кб -- 09.04.2016
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10. Solar Tracker (OSD)
... Determination of the direction towards the center of the Sun’s visible disc relative to spacecraft axes. ... The direction to the Sun is computed in the instrument coordinate system relative to the pixels' position on the linear CCDs, illuminated with the light passing through the coding mask. ... less than 0.1 deg./s 3 arcmin . ... Field of view, deg . in the plane OXZ –60…+60° . ... Optical Solar Tracker (OSD) . ...
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Ссылки http://www.iki.rssi.ru/innov/eng/sd21.htm -- 6.8 Кб -- 02.10.2006
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/innov/eng/sd21.htm -- 6.8 Кб -- 02.10.2006
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[ Сохраненная копия ] Ссылки http://www.cosmos.ru/innov/eng/sd21.htm -- 6.8 Кб -- 02.10.2006
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11. The Sky Above Us
... And night unto night revealeth knowledge; . ... They noticed that the stars in that celestial canopy, the "firmament," maintained fixed patterns-- constellations --night after night. ... Like a globe, the sphere of the sky has two points around which it turns, points that mark its axis --the poles of the celestial sphere. ... The axis around which the Earth spins points in a certain direction in the sky, and that is also the direction of the pole star (or more accurately, the northern celestial pole...
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Ссылки http://www.iki.rssi.ru/magbase/REFMAN/STARGAZE/Ssky.htm -- 11.0 Кб -- 11.03.1999
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12. http://www.naic.edu/~phil/calcb/gain02aug01.html
... The data was taken between 18 hours and 4 hours AST. ... Figure 1 plots the total power za pointing error versus za (top) and azimuth (bottom) for 4500 Mhz. ... Figure 2 shows the azimuth pointing error versus za (top) and azimuth (bottom) for 4500 Mhz. ... The gains for za less then 2.5 should probably be ignored. ... Figure 4 is the gain versus azimuth. ... Figure 5 has the gain for 4500 Mhz (top) and the gain after correction for any pitch, roll, and focus error (done in software using a model). ...
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Ссылки http://www.naic.edu/~phil/calcb/gain02aug01.html -- 5.4 Кб -- 15.08.2001
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13. http://www.stsci.edu/ops/Venus/12433/trans/12433-03.tv-desc
:proposal 12433 :absolute-time 0 :sub-system TRANS :version 20100826 :file-name 12433-03.tv-desc : visit 03 ) ( Visit -Description :number 03 :num-orbits 3 :time 13255 ) ( Orbit -Description :number 1 : visit 03 :visibility 3234 :num-layers 1 ) ( Orbital-Event-Description : orbit 1 : visit 03 : type pcs-acq : sub-type acq : ...
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Ссылки http://www.stsci.edu/ops/Venus/12433/trans/12433-03.tv-desc -- 9.9 Кб -- 07.01.2011
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14. http://xray.sai.msu.ru/~ivan/gmt/man/pswiggle.html
pswiggle - Plot anomaly along track on a map pswiggle xyz _ files -J parameters -R west / east / south / north [ r ] -Z scale [ -A direction ] [ -B tickinfo ] [ -C center ] [ -D gap ] [ -E azimuth / elevation ] [ -G fillrgb ] [ -H [ nrec ] ] [ -I fix _ az ] [ -K ] [ -M [ flag ] ] [ -N ] [ -O ] [ -P ] [ -S [ x ] lon0 / lat0 / length [ units ] ] [ -T ... Je lon0 / lat0 / scale (Equidistant). ... I Set a fixed azimuth projection for wiggles [Default uses track azimuth, but see -A ]. ...
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Ссылки http://xray.sai.msu.ru/~ivan/gmt/man/pswiggle.html -- 11.3 Кб -- 19.03.1999
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15. APOD: 2006 September 17 - Anticrepuscular Rays Over Florida
... 2006 September 17 . Anticrepuscular Rays Over Florida . ... Although the scene may appear somehow supernatural , nothing more unusual is occurring than a setting Sun and some well placed clouds. ... While enjoying the sunset after visiting NASA's Kennedy Space Center in Florida , the photographer chanced to find that an even more spectacular sight was occurring in the other direction just over the Atlantic Ocean -- a particularly vivid set of anticrepuscular rays . ... About APOD | ...
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Ссылки http://www.sai.msu.su/apod/ap060917.html -- 5.5 Кб -- 02.10.2012
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16. http://www.atmob.org/about/observing/awards/files/double_star_instructions_2011-02-01.pdf
ATMoB "Double Star Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston in particular, double, triple, and multiple stars. Introduction: Double, triple, and multiple stars are the "Rodney Dangerfields" of the night sky. ... W hile they can be observed under a variety of sky conditions, double stars especially close ones are best viewed on nights when the seeing is steady. ... The direction from a star to Polaris is north. ...
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Ссылки http://www.atmob.org/about/observing/awards/files/double_star_instructions_2011-02-01.pdf -- 24.3 Кб -- 21.02.2011
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17. http://zebu.uoregon.edu/~uochep/talks/talks06/vlcws-sinev.pdf
LCWS06, Vancouver, BC, July 19-23, 2006 Tracking resolution , fitting and detector optimization Nikolai Sinev , University of Oregon Topics to be discussed Limits on resolution for track parameters Different track fitting methods Discussion of results of track fitting with SLD-like fitter (weight matrix based) Comparison with simple circle fitter Effects of detector design Conclusions 7/19/ 2006 Nick Sinev , Tracking ... 7/19/2006 Nick Sinev, Tracking resolution 25 ...
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Ссылки http://zebu.uoregon.edu/~uochep/talks/talks06/vlcws-sinev.pdf -- 235.7 Кб -- 01.08.2006
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18. Setting Up a Vixen Polarie Star Tracker | ESO
... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to La Silla . ... Travel to Paranal . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO 3.6-metre telescope . ... On e of three€а ESO Photo Ambassadors ,€аYuri Beletsky, part of the€а ESO Ultra HD Expedition €аteam setting up a€а Vixen Polarie Star Tracker €аon the VLT platform at Paranal. ... Cerro Paranal , Paranal , Photo Ambassador , Very Large Telescope . ... 25.9€аMB . ...
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Ссылки http://www.eso.org/public/videos/uhd_photogr1_2014/ -- 94.3 Кб -- 10.04.2016
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19. HwB: MSX External Diskdrive Connector
... Dir . ... 12 VDC . ... DIR . Direction (0=In, 1=Dir) . ... Moves head 1 step in DIR direction. ... Write Data . ... Write Gate . ... Write protected disk (0=Write protected) . ... GND . Ground . ... Ground Note: Direction is Computer relative Diskdrive. ...
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Ссылки http://www.sao.ru/drabek/Components/NewSprawoch/connect/co_ExtDiskMsx.html -- 7.3 Кб -- 26.10.1999
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20. HwB: MSX External Diskdrive Connector (Offline)
... Dir . ... 12 VDC . ... DIR . Direction (0=In, 1=Dir) . ... Moves head 1 step in DIR direction. ... GND . Ground . ... Note: Direction is Computer relative Diskdrive. ...
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Ссылки http://www.arcetri.astro.it/irlab/doc/library/hwbook/connector/storage/extdiskmsx.html -- 6.7 Кб -- 06.07.2001
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