... 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. ...

Define region . ... Area/perimeter . Define a region of interest on a graph or graphs. Select the region, there are 5. ... Inside polygon . Points inside a closed, non-intersecting polygon are considered inside the region. ... In the polygonal region type, define the region by successive clicks with the left mouse button, use the right mouse button to register the polygon. ... Select the region to use. ... Click on Area or Perimeter and use the mouse to define the region. ...

OSLO LT V5.4 Optical Software For Layout And Optimization . Articles | ... Has anyone out there tried to raytrace a telescope design? ... OSLO LT keeps track of the optical path length each ray travels, so it knows the phase relationship of the light as it travels through the telescope. ... Through the use of OSLO LT, I've been able to refine the optical design of the telescope I'm working on. ... www.astronomy.net . About Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... N.A.Bobylev, Yu.M.Burman, Morse lemmas for functionals of the variational calculus, Func.Anal.Appl., ... N.A.Bobylev, Yu.M.Burman. ... N.A.Bobylev, Yu.M.Burman, A.B.Shubin, Algorithms for control with a minimal number of switchings, Automation and remote control , V.53, 5:619, 1992. ... TeX file ) . ... Quadratic Poisson brackets compatible with an algebra structure . ... Yu.M.Burman. ... Yu.M.Burman, Whitney's index formula in higher dimensions and Laplace integrals , Preprint math.DG/9801044 . ...

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

Optical Communication Experiment using Very Small Optical transmitter with SLR station National Institute of Information and Communications Technology, Japan Space Communications System Laboratory Hiroo Kunimori and VSOTA TEAM Sep 24, 2012 WPLTN Technical Workshop@St.Petersburg, Russia Table of Contents Backgound:HODOYOSHI Project JapaneseHODOYOHI= Reasonable Reliability Engineering to develop series of 50kg Satellite. ... How to share wavelength communication beam and ranging beams. ...

Astronomy Picture of the Day . ... 1.09.2015 . ... Despite appearances, this person is actually pointing in the direction of a bright Iridium flare , a momentary reflection of sunlight off of a communications satellite in orbit around the Earth. As the Iridium satellite orbits, reflective antennas became aligned between the observer and the Sun to create a flash brighter than any star in the night sky. ... Publications with keywords: satellite . Publications with words: satellite . ...

... Telescopes . ... The LX850 combines innovative concepts like StarlockтДв fulltime automatic guiding and high-precision pointing, f/8 ACF OTAs with internal Crayford-style two-speed focuser and a portable precision German equatorial mount. ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade Green Laser Pointer- a great item for star parties and backyard astronomy. ...

... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

... Публикации и издания Публикации профессорско-преподавательского состава СГАУ Издания проф. Сосниной Т.Н. Biosphere: Analysis of Value Parameters . ... Besides, the ways of saving the use value and value properties of biosphere are analyzed. The expediency of transformation of two-criterion theory of value into the three- criterion theory of the balance of value, where the ecologic component performs the function of the key criterion has been founded. ... BIOSPHERE USE VALUE OF THE PRODUCT: MAIN . ...

... 3 ­ Sternberg State Astronomical Institute, Moscow, :jeanna@sai.msu.ru The graphic method of the analysis of an arrangement of linear structural elements on geographical and geological maps of continents (A.V.Dolitsky, [1]) has allowed to find out global stress fields of the past and among them one which directions (the main normal and maximal tangents) describe more than 80 % of all linear elements of a relief. ... The found poles share program way on density of an arrangement on 3-4 groups. ...

... Bad Astronomy . ... Bad Astronomy: The North Star, Polaris, is a very bright star. Good Astronomy: Polaris is a middling-bright star, easily missed. ... He said it was close to Polaris, the North Star, but he also said it was in the East. ... It's natural, I suppose, to think that such an important star should be bright, but really, that's a conceit, like thinking that the Earth is at the center of the Universe. If more people knew just why Polaris is the North Star, this Bad Idea would stop. ...

specpsf -- Form a longslit spectrum for a point source from many point spread function images specpsf refima psfwavs psfims sliwid pixwid subsam cenoff psfpos outpsf . ... The name of the input 2-dimensional reference image to supply the dimensions and header information for the output longslit Point Spread Function (PSF) spectrum image. psfwavs = "" [table file name] . ... The centre of the Point Spread Function in each input image is determined by centroiding and the slit is placed over the image. ...

Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

... In the light curve depicting their observations, definite trends are noted, here is a "thumb-nail" analysis of the the magnitude estimations of the bright SN (1989B) in the galaxy NGC 3627 (M66). ... 10 (IAUC # 4742) 2/25 13.3 16 j 2/27 13.5(*) 18 lc 2/28 13.8 19 p 3/1 13.2 20 w 3/2 13.5 21 a 3/4 13.8 23 p 3/6 13.3 25 c 3/7 13.3 26 c 3/8 14.1 27 m 3/8 13.3 27 r 3/9 13.4 28 c 3/9 14.1 28 m 3/10 13.6 29 j 3/10 14.0 29 a 3/11 13.6 30 c 3/11 13.5 30 r 3/11 13.7 30 s 3/13 [13.69 CCD Mag.] ...

... IRAF Multiple Extensions FITS (MEF) Files Interface Nelson Zarate National Optical Astronomy Observatories Tucson, AZ 85719 (zarate@noao.edu) Abstract. ... If there are no values to match then `extver' should be INDEFL. 3.2. mef rdhdr gn (mef,group) Read extension number `group'. ... The header should have been read by now. mefo The output file MEF pointer returned by mef open. 4.2. mef copy extn (mefi, mefo, group) Copy a FITS extension given by its number `group' into an output file. ...

Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

Midday line determination by means of gnomon. At midday the shadows of all the objects are directed along the line pointing exactly from the South to the North. ... At one or two hours before midday mark the shadow edge from the pole with the help of a peg. ... Using the free part of the cord as a circle draw a circumference coming through the peg. ... A straight line coming through the middle of the line, connecting the first and the second peg and the base of gnomon is a midday line. ...

... Class . ... SUMMARY: NESTED | FIELD | ... METHOD . DETAIL: FIELD | ... java.lang.Object ij.process.FloatPolygon . public class FloatPolygon . ... Used by the Roi classes to return float coordinate arrays and to determine if a point is inside or outside of spline fitted selections. ... float[] . ... Field Detail public int npoints . ... Constructor Detail public FloatPolygon (float[] xpoints, float[] ypoints, int npoints) . ... Method Detail public boolean contains (float x, float y) . ...