... Optical designers have long relied on geometric optics, or ray-tracing, to predict performance of optical instruments. ... As commonly implemented, physical optics codes unfold an optical system into a simplified linear sequence of ``thin lenses,'' which collapse the phase effects of optical elements into a plane. ... This approach accurately determines the effects of vignetting, aberrations and induced aberrations, based on the actual optical instrument geometry and prescription. ...

Next: The ESO VLT CCD Detectors Software . ... Up: Instrument-Specific Software . ... The framework for data calibration and analysis of the VLT instrumentation is presented, based on the concepts of a calibration plan, pipeline calibration, quality control, and archiving of calibrated data for a ground-based observatory. ... Quality Control Pipeline provides quality assessment for instrument performance data and observing conditions, and tests the results of the Reduction Pipeline. ...

... Meade Instruments Corporation . ... Refracting telescopes (Meade Models NG-60, NGC-60, DS-2070AT, ETX-70AT, LXD55-AR5, LX55-AR6 ) and mirror-lens telescopes ( ETX-90AT, 105AT, 125AT, LXD55-SC8, 8LX90, LX200 GPS Series ) are generally more versatile in a wide array of land and astronomical applications. ... The intermediate-level observer, or the non-casual telescope user who wishes to purchase one telescope for a lifetime, should consider a Meade Model LXD55 series, 8LX90, or LX200GPS. ... Meade 4M ...

Next: INTRODUCTION . ... This article presents the Quality Control system of the Very Large Telescope. ... After a presentation of the QC levels and their implementation for the VLT, the paper discusses the usage of instrument models. ... On the other hand the observatory can control the instrumental configuration, test data analysis procedures, and provide calibration solutions with the help of instrument models. ... Quality Control . ... Instrument models for calibration and quality control . ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Parkes | ... Atmospheric Modelling of the Companion Star in . GRO J1655-40 . ... We have measured the rotational velocity of the companion star to be = 80 10 kms -1 (1 ) by fitting Kurucz model spectra to our observed spectrum of the black-hole candidate GRO J1655-40. ... binaries: spectroscopic, stars: individual (GRO J1655-40), stars: rotation . ... Companion Star in GRO J1655-40 . ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

It is easy to incorporate information from an instrument or the telescope into your scripts. ... mess with the getKeyVar statements because getKeyVar returns None in debug mode, making the commands run, which is perfect. import TUI .TCC.TCCModel import TUI .Inst. DIS .DISModel from TUI .Inst. DIS .StatusConfigInputWdg import StatusConfigInputWdg InstName = DIS class ScriptClass(object): Simple script to configure DIS . def __init__(self, sr): Display ...

Eyepieces Forum Message . Forums: . ... Eyepieces ћ Meade ћ Misc. ... Discussion Forums | Eyepieces | ... Help With A Telescope, Tasco Model 17T . Forum List | ... Post Message | ... Hello, I got a Tasco Telescope, Model 17T. I have these peices: . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

ASC-FITS-2.0.1: ASC FITS File Designers' Guide (Rots and McDowell) (1999 Jun) . ASC-FITS-REGION-1.0: FITS region document (McDowell and Rots) (1998 Mar) . ... CXC-DM-001 Introduction: Data Analysis with the Chandra Data Model (2001 Oct) . ... 1998 Feb 26: SDS-1.0: Data Product List: obsolete . ... 1998 Mar 09: SDS-10.0: (ASC-FITS-REGION-1.0) FITS region document: see ASC-FITS-REGION-1.0 . 1998 Feb 09: SDS-11.0: FITS function document (superseded by ASC-FITS-FUNCTION-1.2) . ...

... Tonight's Sky . ... Stephen James O'Meara . ... Observing springtime deep-sky objects with a large telescope . ... Test model of James Webb Space Telescope instrument ready . ... While engineers press on at full speed with building the James Webb Space Telescope (JWST), a test model of one of the telescope's major scientific instruments has gone on display today at its manufacturer in Germany, ready for shipping to NASA later this year. ... James Webb Space Telescope's "spine" now being built . ...

Магазин . ... Старейший магазин телескопов в России . ... Корзина 0 0 Р . ... Телескопы Celestron . ... Добавить в избранное . ... 49 990 Р . ... Мы рады приветствовать Вас в нашем специализированном магазине телескопов и других астрономических товаров. ... Интерес к звездам, к созерцанию неба, обычно приводит человека к желанию купить телескоп, который позволит ему увидеть своими глазами все далекие сокровища космоса, так красочно описываемые в книгах. ... Copyright TELESCOPE.RU, 2016. ...

... Apr 14, 2016 - Monthly Meeting . ... The Amateur Telescope Makers of Boston, Inc. ATMoB) is an astronomy club devoted to telescope making, observing, and studying the heavens. ... CURRENT MOON . ... April Sky . ... Lyrids Meteor Shower . ... Sources: NASA JPL Space Calendar , StarDate Online , Sky Telescope , Harvard-Smithsonian Center for Astrophysics , RASC Observer’s Handbook , Abrams Planetarium Sky Calendar and Astronomy Magazine . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . Dept. for Space Plasma Physics . Dept. for Physics of Minor Celestial Bodies . Dept. for Physics of Planetary Systems . Dept. for Solar Physics . ... Solar telescopes . ... 2016,MNRAS, 2016MNRAS.tmp.. ... Evans A., Pavlenko Ya.V., Kaminsky B.M., et al.Modelling the spectral energy distribution of the red giant in RS Ophiuchi: evidence for irradiation. ... Equipment . ... All Pages . Page 4 of 5 . ...

... Размещена статья "Новая карта рельефа Марса" . ... К середине 60-х годов прошлого века многотрудные усилия астрономической общественности нашей страны (в то время Советского Союза) увенчались созданием научно-популярного журнала "Земля и Вселенная", ныне являющегося журналом Президиума РАН. ... Все это в известной степени находило отражение на страницах "Земли и Вселенной" - журнала, пропагандирующего достижения отечественной и мировой науки в области астрономии, космонавтики и комплекса наук о...

... The seeing was good enough to be able to reduce both 850 and 450 micron data. aperture calculated from 850 micron data . ... Data, model and residuals for 450 micron data These maps were taken in March 2001. ... 1mm defocus data and model maps . 0.5mm defocus data and model maps . infocus data and model maps . ... The map of surface errors (shown as phase errors in radians) and the map of calcualated surface illumination is shown in the following plot: . ... 2mm defocus data and model maps . ...

This instrument is a spectometer with . ... maximum resolution of 40 Hz (8.4 m/s at 1.4 GHz) . ... The control software has been developed using Object Oriented analysis and modelling techniques ( Arcetri report 3/98 ). ... n. 3/93: ARCOS - Arcetri Correlation Spectrometer: Clock Generation module . n. 13/93: ARCOS - Arcetri Correlation Spectrometer: Project status report . ... n. 3/98: Software Analysis for the Arcetri COrrelation Spectrometer . ...

... Your main research interests concern the computer modelling of galaxy formation. ... The observers think that they are smart, but it is only thanks to these new telescopes that all the exciting recent progress has been made in the study of the high redshift universe. ... By redshift ten, some knots (where filaments and sheets join) are getting dense enough to form galaxies, and the first light in the universe switches on. ... By redshift 5, clusters of galaxies are centred on these knots. ...

... The telescope model . ... Pictures of the 12 meter system . ... 28mar16: tx,rx for receivers have paired serial numbers. polA 5009, polB 5010. ... polA now had 5-6 db less power than polB (coming out of the fiber rcvr.. see specs below) . ... 26jan15: found that grp read addresses were lost on 19jan15 14:00 after power dip. ... 19aug11:dana's measurements of fiber phase stability. (.pdf) ( .eml ) . ... 81.5 dbm polA . ... signal 2.5 db higher at xb at rcver. polA has 5 to 6 db less power then polB ....

... Dark Matter Ring Modeled around Galaxy Cluster CL0024 17 . ... These are multiple images of a few distant galaxies, showing that the cluster is a strong gravitational lens . ... A hypothesis for the formation of the huge dark matter ring holds that it is a transient feature formed when galaxy cluster CL0024+17 collided with another cluster of galaxies about one billion years ago, leaving a ring similar to when a rock is thrown in a pond. ... Abell 2218: A Galaxy Cluster Lens . ...

Status of the RadioAstron project development . The engineering model of the Space Radio Telescope (SRT) was assembled in Lavochkin Association (LA) in the configuration consisting of 10-m parabolic radio astronomical antenna made of carbon-fiber, F ocal and Device cabins of the scientific payload and on-board and ground complex of high data rate up-down radio link (VIRK). ... Then,radio astronomical tests were conducted using real radio sources. ... Space Radio Telescope . ... Data Processing . ...