Next: Imaging by an Optimizing Method . ... A big advantage of this numerical integrator is its stability: the error in the semi-major axis and the eccentricity depends only on the step size and does not grow with an increasing number of time steps. ... As the integration time increases, the numerical results become more contaminated by various errors. ... A new symplectic integrator produces no secular truncation errors in the actions of a Hamiltonian system. ...

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• Literature and Catalogs in Electronic Form: Questions, Ideas and an Example:
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... Preprocessor Compiler Control . ... This directive includes a file into code. ... include <file> or #include ``file'' . ... As another example if running program on MSDOS machine we want to include file msdos.h otherwise a default.h file. ... This is most often used with programs that translate other languages to C. For example, error messages produced by the C compiler can reference the file name and line numbers of the original source files instead of the intermediate C (translated) source files. ...

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... The Riemann zeta function is the basic example of a family of functions arising in many mathematical fields: number theory, algebraic geometry, group theory, graph theory, dynamical systems, partial differential equations.. ... The most famous mathematical enigma, the Riemann hypothesis, generalized to many zeta functions, is the key to numerous mathematical questions. The focus of the conference will be on the most recent advances in the study of zeta functions. ... Sergey Gorchinskiy (Moscow) . ...

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• Programming: from an Art to a Science
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Stellarium 0.12.3 . ... Classes . ... Scripting . ... Scripting Engine . ... Script Console . ... Since version 0.10.1, Stellarium includes a scripting feature based on the Qt Scripting Engine . ... Prior to version 0.10.0, Stellarium used a different scripting engine called StratoScript . ... Prior to version 0.10.0, Stellarium had a simple scripting engine, known as StratoScript . ... This script prints "Hello Universe" in the Script Console output window. core.debug( "Hello Universe" ); . ...

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... List Of Participants . ... 8:00-10:30 Educational Lectures for the students UlSU and UISS young participants . ... 17:30 Cultural program (excursions along Ulyanovsk historical part, etc) . For September 16-17 culture program is planed. It includes walk to the wonderful place-forest on Volga bank, trip along Volga, etc. ...

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• No Title
• Tsiolkovskii's Paradox
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... Do you know why we have seasons on Earth? ... Even if you offer students the great activities developed by the Harvard researchers, or the great activities in ASP's teacher resource book, The Universe at Your Fingertips , your students still won't learn anything unless they work hard and think about their work. ... But none of these are worth a hoot unless they are also accompanied by hard work on students' part. ... The key to success in astronomy is the same as it is in everything else: hard work....

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XEphem Forum Message . Forums: . ... Re: More Compiliation Problems . ... Posted by Elwood Downey on December 7, 2000 14:49:32 UTC . ... Re: Re: More compiliation problems - spinkham - December 7, 2000 - 15:36 UTC . Re: Re: Re: More compiliation problems - ecdowney - December 7, 2000 - 18:42 UTC . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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Sometimes we require more than one line for a statement Print *, 'This is a long output line',& ' this is the second part',& ' and this is the third part!' Nowadays, in the free form, we continue a line with the symbol "&" (called ampersand), i.e. with the sign & at the end of the old line instead of an almost arbitrary character in column 6 of the new line. ... Exclamation mark in column 1 of course means a comment line also in the old fixed form. ... 3.1) What does the following line mean? ...

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... 8, ``Celestial Mechanics'', 2002 Two problems in solar systems dynamics, possible solutions and future A. Fienga IMCCEґObservatoire de Paris, Paris, France In this contribution, two major aspects of the new challenges of the solar system dynamics are presented. ... As it was demonstrated by (Standish and Fienga [4]), the perturbations of the Mars orbit by the asteroids are difficult to modelize and they present now the main limitation of the present theory of Mars motion. ...

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... will give a .\" real vertical bar. ... xpaset xpa # send to xpa \& cat xpa.c | ... You also can use ctest to do the same thing, or to iterate: .PP .Vb 4 \& ctest -s -l 100 xpa # send to xpa 100 times \& ctest -s -l 100 "xpa*" # send to xpa and xpa1 100 times \& ctest -g -l 100 xpa # receive from xpa 100 times \& ctest -g -l 100 "xpa*" # receive from xpa and xpa1 100 times .Ve .PP More options are available: see the stest.c and ctest.c code itself, which were used extensively to debug \s-1XPA\s0. ...

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... The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. ... Information on the NTP architecture, protocol and algorithms can be found in the Further Information and Bibliography page. The Building and Installing the Distribution page presents an overview of the procedures for compiling the distribution and installing it on a typical client or server. ...

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Multi-Wavelength investigations of the Sun and modern problems of solar activity . SAO RAS . ... Representation of the last findings in the field of experimental and theoretical investigations of solar activity. The analysis of the maximum of the 23d cycle of solar activity and connection with Space Weather. ... Solar corona study. ... Solar activity and disturbances of the solar wind and cosmic rays. Modern observational methods for solar investigations. ... Copyright ? 2006 SAO RAS . ...

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... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...

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• MERLAN

Subject, Object and Problems of Astrophysics. Practical and Theoretical Astrophysics. ... Visual Telescope; Problems Which Are Solved with the Its Help. ... Resolution of Telescopes. ... Effectiveness of Telescope in Respect of Resolution. ... Optical Power of Telescopes for Star-like and Extensive Objects. Boundary Magnitude. Reasons of Light Dissipation in Telescopes. ... Spectral Instruments in Astrophysics. ... Basic Photometrical Ideas, Magnitudes and Their Measurement. ...

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• Celestial Mechanics
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... 2.3 Establishing the Extragalactic Distance Scale . ... 2.3.2 The Second Rung: Distances to stellar clusters . ... 2.3.4 Distances to Local Group Galaxies . ... The Luminosity Function of Planetary Nebulae . ... 3.2.2 Clusters of Galaxies . ... 4.2 Evidence for Dark Matter as a Function of Scale Size . ... 4.3 Other Dark Matter Indicators for Galaxies . ... What is the nature of the large-scale distribution of matter in the universe as traced by the three-dimensional galaxy distribution? ...

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Monday, February 2,2015 ARCTIC Notes Attending: Alaina, Alysha, Joe, Bill, John Wilson, Tyler, Suzanne, Conor - Filter quotes -- No news. ... ICC Update Ї Fritz is confident the problems are not with the kernel software, drivers, or Leach software. ... We chose this server because we have a history of working with them, it has a high level of redundancy built in, and a regular desktop would take up more pace. ... Joe would like to bring a computer with the instrument to APO. ... Conor may come down. ...

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... Bad Astronomy . ... On Thursday, February 15th 2001 (and replayed on March 19), the Fox TV network aired a program called ``Conspiracy Theory: Did We Land on the Moon?'', hosted by X-Files actor Mitch Pileggi. ... Dust around the lander . ... However, it appeals to our common sense: when the sky is black here on Earth, we see stars. ... Bad: The program claims that when the top half of the lander took off from the Moon to bring the astronauts back into orbit, there was no flame from the rocket. ...

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• Phil Plait's Bad Astronomy: Bad News
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... Advises . Contact Advises . As an advise for amateurs we would like to underline: if it's possible, try to observe 3 asteroid positions per night and do not neglect to observe the Numbered Minor Planets in your telescope field of view as a "by product" of your observational programs. ... We think such estimations ought to be produced every morning after CCD observations of the moving celestial objects by observer himself. ...

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... Dr. Ravil Nazirov is the head of the workshop, and Andrew Ananjev is the secretary of the workshop. ... The workshop is used to be held in the last decade of the month, preferably on Tuesdays. ... The next session will take place October 29, 1996 . ... There is "CONPAS" mailing list which you can join to discuss issues of problem solving and to be automatically notified of important dates and decisions with respect to the coming sessions. ... Secretary of the Workshop: Andrew Ananjev . ...

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... Tour Objects Tours can be created using objects from within the Autostar database or a user can enter in different objects (such as a newly discovered comet). ... Automatic Mode: As the user advances to each object, the title of the object appears on line 1 of the display while its descriptive text automatically starts scrolling across line 2. ... For example: STAR "Rigel" LANDMARK az alt "title" "description" Enter the azimuth (az) for the desired object in the following format xxxdxxmxxs. ...

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