... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

... The Second International Astronomy Olympiad . ... Problems to solve, 8-10 Form Text of these problems is available in Russian too. ... Two stars have the same absolute magnitude. ... The orbital period of Mars is 687 days. ... See problem 2. for 8-10 Form. ... Problem to solve, 9-12 Form Text of the problem is available in Russian too. ... Problem is about Doppler-effect, to find velosities of two stars using their spectra and spectrum of our Sun, to estimate speed of the Earth moving around the Sun...

... Please note the following problems and workarounds: . ... Arrow keys . Arrow keys are used in SAOtng to move the mouse or markers. ... Unfortunately, error messages are generated if both sets are defined in the SAOtng code but are not supported by X. To get around this problem, we have added the -kbprefix command switch (and the SAOTNG_KBPREFIX environment variable) to SAOtng. This switch allows you to specify which arrow keys you want to use (assuming your version of X supports both). ...

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. ...

... Paul J. Francis . ... 3mm] Joint appointment with the Research School of Astronomy and Astrophysics . I present a way of adapting the techniques of Problem Based Learning (PBL) to undergraduate astronomy classes. A fictitious astronomical mystery is invented, and presented to the class. The students, working in small groups, propose observations to crack the mystery. ... Two case studies of this technique are presented and discussed. ... Student Briefing . Running the Exercise . ...

Next: CCD data Up: Special problems Previous: Marginal nights . If the program complains that you have negative intensities, this is usually due to misidentifying star observations as sky. ... Another problem with sky occurs when the program cannot find a suitable sky observation to subtract from a star datum. ... Finally, as the sky-modelling algorithm does not try to model twilight, it uses the ``nearest-neighbor'' method to correct star observations made during twilight for sky. ...

. Next: Abstract . On the problem of Super Ratio in Astrophysics . V.M. Lipunov . Sternberg Astronomical Institute, . Universitetskij pr., 13, 119899, Moscow V-234, Russia . E-mail: lipunov@sai.msu.ru . Abstract . Fermi's Paradox . Simple Universe . Tsiolkovskii's Paradox . Scientifically discovered God . Endlessly Complicated World . References . About this document ... Lipunov V.M. Sun May 3 16:35:20 MSD 1998

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... A most promising problem is to investigate the interaction of two VHF powerful radiowave beams in the ionosphere, whose difference frequency is equal to the plasma frequency in some ionospheric area (that is, the difference frequency is taken in the range 1-8 MHz). ... Two-frequency interaction effects are based on radiowave non-linear mixing, which is rather complicated when describing and modelling the experiment. ...

problems with the if/lo system: . ... rfattn polB switching error: . ... 1006,Channel timeout <17 hex digits> . ... detected state of the sense lines. ... lines appeared to be at 0 V. тЭН A Sense error without a Channel timeout means both sense lines . appeared to be at 24 V. Since we had hpErr2=0 .. (no sense error) then the sense lines were ok but it was the wrong state. (didn't switch).Historically we've had problems with this combination of 87130 channels and attenuator.. <- page up . ...

Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

Multi-Wavelength investigations of the Sun and modern problems of solar activity . SAO RAS . ... Section "Physics of solar plasma" under the Council "Sun – Earth" . ... Bogod V.M., Dr.Sci (SPb Branch of SAO RAS) deputy chairman . ... SAO RAS) - chairman . Bogod V.M. (SPb Branch of SAO RAS) - deputy chairman . Mingaliev M.G. (SAO RAS) - deputy chairman . Kostjuk I.P. (SAO RAS) scientific secretary . ... Vitkovskij V.V. (SAO RAS) . Kaltman T.I. (SPb Branch of SAO RAS) . ... RAS | ...

... G. A Leikin, A. N. Sanovich. Sternberg Astronomical Institute, Moscow 119899, Russia. Brown University - Vernadsky Institute Microsymposium 34, October 8-9, 2001, Moscow, Russia . ... G. A. Leikin and A. N. Sanovich, Sternberg State Astronomical Institute, Moscow State University, . ... Brown University - Vernadsky Institute Microsymposium 38, October 27-29, 2003, Moscow, Russia . ... Sternberg State Astronomical Institute, Moscow, State University, 119992, Moscow, Universitetskij prosp. ...

... We apply these methods to simulated nondestructive read ramps with single-sample groups and varying combinations of flux, number of samples, number of cosmic rays, cosmic-ray location in the exposure, and cosmic-ray strength. We show that the y-intercept method is the optimal detection method in the read-noise-dominated regime, while both the y-intercept method and the two-point difference method are best in the photon-noise-dominated regime, with the latter requiring fewer computations. ...

A problem, that can arise when moving from Fortran 77 to Fortran 90, is dependent on a usual deviation from the standard, and has to do especially with user programs. ... With many Fortran 77 implementations we wrote PROGRAM TEST REAL X WRITE(*,10) 10 FORMAT('Give X = ',$) READ(*,*) X WRITE(*,*) X END In Fortran 90 we use "non-advancing I/O" instead. ... In some old Fortran dialects the statement TYPE was used to write on a typewriter terminal and PRINT was used to write on the line printer. ...

Bigbang Forum Message . Forums: . ... Big Bang | ... PROBLEMS WITH COSMOLOGY? ... I have read about problems with 'Big Bang theory' and Einstein’s relativity theories. ... This was written by a physicist: an enthusiast and expert in string theory! ... It is indeed this problem which Greene (2) shows string theory is set up to solve." ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Keyword TIMEDEL missing in Input File . error . The TIMEDEL keyword is missing in the timeseries FITS file, which is necessary to determine the binning factor of the data . ... Hence it is impossible to carry out the variability test. corrective action: Use a different input file . ... The keyword is missing in the input timeseries FITS file which could indicate that there is a problem with the input timeseries FITS file. corrective action: Verify that this is a valid fits file . ...

Multi-Wavelength investigations of the Sun and modern problems of solar activity . ... Conference participants: . ... Altyntsev A.T. altyntsev@iszf.irk.ru . ISZF . ... Ussuriysk Astrophysical Observatory RAS . ... Pulkovo Observatory . ... Vasil'eva V.V. solar@narzan.com . MAS Pulkovo Observatory . ... Crimean Astronomical Observatory . ... grechnev@iszf.irk.ru . ... vgrig@iszf.irk.ru . ... Grigor'eva S.A. sgrig@iszf.irk.ru . ... Gubin A.V. gubin@iszf.irk.ru . ... ivanoff@iszf.irk.ru . ...

... Many massive planets contrary to Jupiter have large eccentricities of orbits. ... Another problem is to study the conditions and boundaries of stable, regular motions of small mass planet in systems having `Jupiter' with large orbital eccentricity as well as properties of regular, stable, and irregular, chaotic motions. ... The regular eccentricity evolution described above demonstrates that stable quasi--circular orbits of small planet are unusual. ...