Find Similar Abstracts (with default settings below ) . Also-Read Articles . Translate Abstract . ... Spectroscopic and speckle-interferometric observations of the multiple system ADS 11061 . ... 49A Binary star 41 Dra is a member of the hierarchical quadruple system ADS 11061 which includes 41 Dra with a very big eccentricity (e=0.9755). Since 1993 we have performed speckle interferometric observations of the system using the 6-m BTA telescope. ... Abstract Text . ... Query Results . ...

The TCC supports the following coordinate systems: . ICRS: the current RA/Dec standard. The default date of observation is J2000. ICRS is FK5 J2000 (for all practical purposes) but has no date of equinox . ... The date specifies both the date of equinox (usually J2000) and the date of observation . ... The date specifies both the date of equinox and date of observation . ... Warning: the following coordinate systems are rarely used (except Mount for parking the telescope). ...

... PUL VLBI Analysis Center . ... Pulkovo EOP and Reference Systems Analysis Center (PERSAC) is located at the Pulkovo Observatory . ... Processing of VLBI , GPS, and optical observations aimed at analysis of the Earth rotation, station displacement, and celestial reference system. ... Celestial Pole Offset (CPO) and Free Core Nutation (FCN) . Four daily updated CPO and FCN series (models) are provided. ... File fcn1.dat contains the ZM1 FCN model with variable amplitude and phase. ...

Next: Marginal nights Up: Special problems Previous: Nonlinearity . If you want to either plan or reduce observations made in your own non-standard system, both the planning and the reduction programs let you declare the system as NONE or OTHER . Use NONE when you want to work entirely in the instrumental system, and OTHER when you want to use a special system of standard stars. ... You can maintain your own files of standard stars for your private system, or for your instrumental system. ...

. Next: Routines of the Calibration Up: Coordinate Definitions used by Previous: Spatial coordinate systems Contents . Several calibration entities are time dependent, i.e., change on a time-scale given by the typical duration of an observation ( ksecs). Each corresponding CAL subroutine receives a time argument which specifies a point in time represented as ellapsed number of seconds since the fixed mission reference time . 1998-01-01T00:00:00.00 TT = 1997-12-31T23:58.56.816 UTC . Michael Smith 2011-09-20

. Mars is "behind" the sun from the earth's point of view and is therefore not visible in the nighttime sky (i.e. its up in the daytime). Venus it at greatest elongation and appears in the western sky as a bright object for 2-3 hours after sunset .

. Strictly speaking, UNIX is not one single operating system, it is a family of operating systems. Different computer manufacturers produce their own versions of UNIX. Although these are mostly similar, there are small differences which can cause problems. The most obvious examples are the layout of the file system and the exact format of certain commands. History of the UNIX operating system . Modern variants of UNIX .

... 2000 September 21 . XZ Tauri System Ejects Gas Bubble . ... Explanation: Why is the binary star system XZ Tauri emitting a hot bubble of expanding gas? ... The XZ Tauri star system is known to reside in the Taurus star forming region located about 500 light-years away. ... The bubble has been expanding over the past thirty years and now extends to nearly fifteen times the binary separation. Tomorrow's picture: Star Cluster . ... About APOD | ...

OptInt PmWiki . MROI / . Edit Page | Page History | ... MROI Delay Line Design Contract . ... Document Management . Systems Engineering Docs . ... Requirements . Design Documentation . ... MROI DL Production SW Contract . ... MROI Fast Tip-Tilt Contract . ... Design Documents . ... Tip-tilt Systems . ... MROI FTT Contract Private Material . Contract Documents . ... MROI DL Design Contract Private Material . ... PmWiki . ... Requirements document: Attach: INT-403-ENG-0003.pdf . ...

RTT150 . Russian-Turkish 1.5-m Telescope . ... Telescope has two main foci (Cassegrain and Coude ) and allows to use six optical systems based on Ritchey-Chretien system with a common main mirror . At present scientific observations are being performed at the Cassegrain focus in main optical scheme with focal ratio of 1:7.7. ... flat . ... To use the Coude focus the removable flat diagonal mirror is also needed in the crossing point of declination axis and main optical axis of telescope. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Brief History of Rocket and Space Technology . Rocket Systems . ... Automatic Space Systems . ... S.P. Korolev Rocket and Space Corporation Energia in cooperation with subcontractors in the Russian industry made a new important step in space technologies - a modular Multi-purpose Satellite Bus (MSB) was developed for a new generation of multi-functional high-performance automatic spacecraft with long life in orbit. ...

... Mokhovaya st., 11, Moscow, 103907, Russia. ... Proceedings of the 7th IEEE International Specialist Workshop on Nonlinear Dynamics of Electronic Systems . ... In this report, we discuss an approach to construction of information searching systems based on dynamic chaos for use in computer networks, local area or Internet. Also we discuss an application of this technology to the problems of searching for information in unstructured text databases with natural-language requests. ...

The Small Libration of the Satellite in the System of the Asteroid 39 Laetitia . ... Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), near-Earth asteroids (NEAs), small libration of the satellite , Asteroid 39 Laetitia , Crimean astrophysical observatory (CrAO), to automate the observation process, method of frequency analysis , periodicity of changes of asteroid brightness, binary asteroid , binary system , period of axial rotation of components, a satellite ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

... Visible Distribution of Galaxies. ... Features of Elliptical, Lens-Shaped, Spiral and Irregular Galaxies. Galaxies with Bar. ... Distribution of Surface Brightness of Surface and Spiral Galaxies. ... Color Characteristics of Galaxies. ... Methods of Galaxies' Mass Determination. ... Hidden Mass of Spiral Galaxies. ... Features of Dark Matter Distribution in E and SO Galaxies. ... The Whole Number of Galaxies and Their Density by the Results of Observation on the 'Hubble' Space Telescope. ...

README for XFree86 on OS/2 : Installing the System . ... The binary distribution is composed of a number of zip archives which are the executables, servers, fonts, libraries, include files, man pages, and config files. ... the X server for IBM 8514/A and compatible boards . ... the X server for AGX boards . ... the X server for P9000 based boards . ... the X server for S3 based boards (excluding S3 ViRGE) . ... the X server for S3 ViRGE based boards . ... the X server for et4000w32 based boards . ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE CHANGING UNIVERSE: EVOLUTION HAPPENS! ... Luckily nature has left a wide range of clues about evolution for us - at every scale of the universe - which we can uncover with some good astronomical detective work. a) Changes in the Solar System . ... An Ancient Universe - Table of Contents . ... The Universe: An Overview | ... The Changing Universe - Changes in the Solar System - Changes in Stars - Changes in the Universe | ...

The Database of Close Binary Systems . ... Team . ... This web-based interactive database is being developed and maintained by a team at the Sternberg Astronomical Institute of the Moscow State University . The project is an on-line extension of our catalogue on "Highly Evolved Close Binary Stars" (volumes I, II) published by Gordon and Breach in 1996. As of November 2009, the database (both the software and the content) is in its development/testing phase. Sternberg Astronomical Institute ...

... The French-Russian Poncelet Laboratory organizes the conference on "Random Processes, Conformal Field Theory and Integrable Systems", September 19-23, 2011, to take place in the Independent University of Moscow. ... In the last decades, the understanding of these processes has greatly benefited from the use of conformal field theory (CFT) and integrable systems (IS) which have been widely studied in the community of theoretical and mathematical physicists. ...

The AstroGuide . ... AstroGuide Listing . Login . See many more Astronomy Listings by: Category or Alphabet . ... Procyon Systems . Procyon Systems offers Observer for Macintosh, and the ScopeLink telescope position acquisition system. ... Web Site . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...