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. ...

... CONDENSED MATTER PHYSICS SUPPLEMENTARY PROGRAM . ... Relationship between symmetry of crystal structure, point symmetry and symmetry of physical properties of crystals. ... Crystal lattice energy, Structural types. ... Typical structures of metal and semiconductor phases. ... Wave diffraction in crystals and basic methods of investigation of crystal structures, their principles, potentialities and specifics. ... Crystal optics. ... Principal methods of investigation phase transitions in solids. ...

The study of energetic particles acceleration and transport within the magnetosphere and on its boundaries is the main goal of DOK-2 experiment on Auroral Probe in a frame of INTERBALL project. ... DOK-2 uses two pairs of energetic particle telescopes . ... This information is available only during the most informative Real Time mode of DOK-2. ... Full 56-57 channel spectra accumulated during time intervals from 10 s to 1464 s depending on a particle intensity. ... For this time interval: . ...

This module illustrates many of the aspects of the Apache 1.2 API and, when used, demonstrates the manner in which module callbacks are triggered by the server. ... Source File: mod_example.c . ... The files in the src/modules/example directory under the Apache distribution directory tree are provided as an example to those that wish to write modules that use the Apache API. ... Example . ... Uncomment the "AddModule modules/example/mod_example" line near the bottom of the src/Configuration file. ...

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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" ); . ...

November 2006 Astronotes 1 Candles in the Dark Image Credit: Wikipedia.org By Colin Johnston, Science Communicator Since the mid-ninteenth century astronomers have used the principle of parallax to measure the distance to other stars. ... How then can we tell, for example, that M31, the galaxy in Andromeda, is 2.2 million light years away? It would be straight-forward to tell how far away a star was if it was exactly the same brightness as our own Sun. ...

ATMoB "Open Cluster Observing Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston through participation in the Open Clusters Observing Awards program. Introduction: This awards program is oriented towards visually observing open clusters above magnitude 9.9. ... It turns out that a very unprejudiced and convenient method to dermine the limiting magnitude is to count the number of visible stars in certain areas on the sky. ...

... The described algorithm is suitable for measurements of complex images of stars. ... a) the zero-based number of stars in the complex (multicentric) image, . b) set of preliminary coordinates - x i , y i , for all stars, index i is number of a star, . ... i - index of a star in the complex image; . ... These parameters are calculated by a nonlinear method of a least squares.The main output parameters of this algorithm are x i , y i ; where the index i is number of a star in the multicentric image. ...

... SFIT is a general-purpose code designed to optimize theoretical stellar spectra to an observed spectrum. ... While the programme expects input from "stdio", it is more natural to save commands in a file (eg "sfit_input") and run the code simply by . ... If the spectra to be fitted have a filename "star_spectrum", then the best fit spectrum will be written out, together with the renormalized input spectrum, to a file called "star_spectrum.fit". ... sets up model spectrum grid (and for 2nd star) . ...

... Telescopes ћ Binoculars ћ Microscopes . Meade Ultra-High Transmission coatings (UHTC ) Group . ... Meade Standard Coatings: The optical surfaces of all Meade telescopes include high-grade optical coatings fully consistent in quality with the precision of the optical surfaces themselves. ... These specialized, and extremely advantageous, coatings are offered here as the Meade Ultra-High Transmission Coatings (UHTC) group, a coatings group available optionally on many Meade telescope models. ...

... October 8, 15:00 15:40 . ... PDF [7.2б MB] October 8, 15:40 16:10 . ... The sky brightness, atmospheric extinction, cloud coverage and auroral appearance are obtained from these images. ... Aurorae are identified by comparing the observed sky brightness to the sky brightness expected from this model. ... The identification of few potential sites for future's larger facility require several instruments, measuring various site characterizing parameters. ...

ENERGETIC PARTICLE EXPERIMENT DOK-2 . ... Due to much higher energy, angular and time resolution, better separation of electrons and ions it is expected that DOK-2 experiment will allow to re-examine in more details energetic particle population and related processes in magnetosphere regions covered by the spacecraft orbit. ... Thin foil in front of detector absorbes protons with energies E<400 keV so this detector measures electron spectrum in 20 - 420 keV range. ... Energy values, keV . ...

... ESO Science Newsletter February 2016 . ... This newsletter is a summary of recent ESO Science Announcement items. ... A new Band 9 receiver was installed inside the Swedish ESO PI receiver for Apex ( SEPIA ) at APEX in early February. ... After on-sky commissioning in late March, Science Verification (SV) observations are planned. ... The Call for Proposals for SEPIA Band 9 SV can be found here and the deadline is 12:00 CET, Friday 11 March 2016 . ... Joint ESO, ALMA, NAOJ, NRAO Workshop. ...

Actor Prolog is an object-oriented logic language. So, any program written in Actor Prolog consists of classes. ... An example of Actor Prolog program. -- -- (c) 2002, Alexei A. Morozov, IRE RAS. -- ------------------------------------------- project : (( 'Hello' )) class 'Hello' specializing 'Console': [ goal:- writeln ( "Hello World!" This program consists of solely 'Hello' class. ... Thus, the execution of the program starts with the creation of an instance of the 'Hello' class. ...

Nova in M31 2000 3 . ... From Giovanni Sostero (Remanzacco Observatory): at the end we have found a good Nova candidate in the course of our monitoring program in M31. ... Remanzacco Observatory Light curve This is a preliminary lightcurve of Nova M31-3 from the images we collected and those provided by others. ... vsnet-alert 5346 ] [FWD] Suspected Nova in M 31 . ... vsnet-alert 5349 ] (fwd) M31 possible nova . ... vsnet-alert 5355 ] [FWD] New image of the possible Nova in M31 (GSo) . ...

SAI VO . ... SAI CAS . ... Web Services . Catalog Access Services . ... SAI VO Wiki . ... Program Access . SAI CAS Wiki . SAI Web Services . ... DSS Mirror . ... We provide an implementation of IVOA standard Simple Image Access Protocol interface to our DSS mirror. Service metadata is available here . Currently, we provide the atlas service only, which returns the list of original DSS images intersecting the requested sky area. ... SAI MSU | ...

... ALGEBRAIC GEOMETRY . ... You can download at once all available printed matters on this course (they are organized in 74 pages text book) as 791 Kb of gzipped PostScript . of this course can be downloaded from here either as zipped PostScript or as gzipped PostScript file. ... You can download either zipped PostScript or gzipped PostScript file. ... Geometry of skew commutative polynomials: Grassmannians. ... at the Independent University of Moscow), Spring 2002 . ... Zipped postscript (20K) ] . ...

... This implies that the scientific output be much larger than that from modern ground based observations in the same scientific field. ... In order to obtain a full picture of the variable structure of such objects with the very high angular resolution it is necessary to build in future multi-element space systems similar to ground arrays. ... 30,000 km) for objects within = ? ... structure and motion of extragalactic sources as a result of their lensing by extragalactic objects . ...

... A three-cell test section roughly representative of the primary mirror was provided for this test by the Steward Mirror Lab. ... Additionally, the tests are intended to determine relative airflow vs. pressure drop characteristics for each of the air flow patterns so the results can be evaluated both as a function of flow rate and of pressure drop along the flow path. ... The bottom (top as installed) was cut out so it could close the chamber for heating and be removed for the cooling tests. ...