Next: CCD Scientific Performance Up: CCD Operation Previous: CCD Operation . A visible light photon releases only one electron-hole pair, and consequently many photons must be collected in each pixel for a measurable signal to be produced. ... This use as an imaging X-ray spectrometer requires that no more than one photon is incident on each pixel in any image frame, which imposes a requirement that image collection times be limited to ~seconds for typical astronomical applications. ...

Pulkovo NEO Page . ... Instrumentation and Observations . ... This Windows application serves for determination of spherical coordinates and magnitudes of the objects. ... The objects coordinates are referred to the system of chosen star catalog. ... 2. choice of reference stars with mouse, . 3. measurement of rectangular frame coordinates of objects and reference stars taking account of predefined background parameters, . 4. calculation of the spherical coordinates of objects. ...

Astronomy Discussion Forums . ... Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Moon Phases - Interactive Application . ... Post Message | ... I've done an interactive application for understanding the phases of the Moon. ... Thanks. http://ilovemedia.es/en/resources/moon_phases.html . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Linux systems will usually have the Python core (Version 2.7) available. ... ALSVID Python Utilities for Processing FITS Images ================================================== file _renumber.py Renumber files in a directory fits _1d_to_dat.py Extract a 1-dimensional FITS array as data fits _absolute_value.py Absolute value of an image fits _background_remove.py Fit and subtract a background fits _bias.py Subtract a bias frame fits _bin.py Bin a stack of images one by one ...

This note outlines how to configure the computers needed to run DIMMWIT. ... dimmwit : ICE (single-board computer in a box) that runs the Starlight Express CCD camera, to which it is connected by a USB interface. dimmwithost : displays the finder application via the X protocol (finder actually runs on dimmwit). Acts as a file server; both the finder software and the DIMM data are stored on dimmwithost. ... mkdir -p /data/oberon/data/finder . chown coast:coast /data/oberon/data/finder . ...

... Science . ... Science Users Information > Science Publications > Science Announcements > Applications ERC Starting Grants Hosted at ESO . ... Observing Facilities . ... ESO welcomes applications from qualified researchers wishing to conduct their frontier research at ESO with the support of one of the prestigious European Research Council ( ERC ) grants in the Starting Grant category. ... The ESO application serves as a preliminary step to grant the host approval that is required by the EU. ...

... Free Telescopes for Schools in Northern Ireland . ... The Society for Popular Astronomy is leading a project to give 1000 telescopes to secondary schools, with support from the Science and Technology Facilities Council and the Royal Astronomical Society, to encourage schools to celebrate the International Year of Astronomy. ... ТЗ School display on astronomy . ... Register with all Ireland astronomy schools competition 2009. ... International Year of Astronomy, Ireland National Node . ...

Modern requirements stipulated for the Networking Technologies . Brief Review of the problems under solution. ... Distributed Collapsed Back Bone Technology Advantages and shortcomings of different approaches. Switches against routers. ... Position at the IS market. Position of the modern high-speed technologies. ... Review of switching technology. Review of the switch market.Classification of switches. ... Big corporate networks implementing switching and routing technologies. ...

R.A.S. Online Application . Form Updated on September 17, 2008 . ... Type in requested information on form. ... Print form (ctrl-p) and mail form & check (or money order) to RAS. ... Hit submit form button, then mail in your check to RAS . RAS Membership is $40.00 per year. ... Email RAS president for details. First name: Last name: . Email: . ... Any additional information: . Send check/money order (made out to RAS) to: . ... Email Tammy Plotner . ...

... Pour des orbites circulaires autour de la terre, nous venons de trouver . ... La distance d'un satellite au centre de la terre en m?tres est un nombre incommod?ment grand, m?me avant d'?tre port? ? ... Nous pouvons par contre multiplier l'expression de droite par (R E 3 / R E 3 ) = 1 et r?arranger alors les termes : . ... SQRT (25 638 838) = 5063.5 . ... C'est la forme pratique de la 3?me loi de Kepler pour les satellites de la terre. ... Prochaine ?tape: #22 Les cadres des r?f?rences : Les Bases . ...

Development and Application of Logical Actors Mathematical Apparatus for Logic Programming of Web Agents Alexei A. Morozov Institute of Radio Engineering and Electronics RAS Mokhovaya 11, Moscow 125009, Russia AlexeiMorozov@netscape.net, morozov@mail.cplire.ru One of the most interesting and promising approaches to programming Internet agents is logic programming of agents. ... One of the first control strategies was created for the execution of sequential logic programs with logical actors [2]. ...

... StelApp Class Reference . ... Get the module manager to use for accessing any module loaded in the application. ... Definition at line 56 of file StelApp.hpp . ... Definition at line 117 of file StelApp.hpp . ... Definition at line 132 of file StelApp.hpp . ... Definition at line 172 of file StelApp.hpp . ... Definition at line 147 of file StelApp.hpp . ... Definition at line 120 of file StelApp.hpp . ... Definition at line 129 of file StelApp.hpp . ... Definition at line 106 of file StelApp.hpp . ...

... Tonight's Sky . ... Tune into the Asteroid Day press conference . ... New desktop application has potential to increase asteroid detection . Analysis of images taken of our solar system s main belt asteroids between Mars and Jupiter using a new algorithm showed a 15 percent increase in positive identification of new asteroids. ... A software application based on an algorithm created by a NASA challenge has the potential to increase the number of new asteroid discoveries by amateur astronomers. ...

MULTISCOPES . MULTISCOPE-EF . ... HOME . ... ABOUT LOMO . PRODUCTS . MICROSCOPES . ... SURGICAL MICROSCOPES . ... Home Products Microscopes Multiscopes Application guide . MULTISCOPE™ APPLICATION GUIDE . Applications . ... Recommended MULTISCOPE™ Configurations . ... Middle School . Life Science . Earth Science . ... Medical School . Veterinary School . ... Biological science . ... LOMO America, Inc. ... 847) 215-8800, Fax: (847) 215-9073 . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... des interviews, des portraits . les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Macrocosme a son application, MC2 . ... La version num†йrique ipad du premier num†йro de Macrocosme, l'application MC2, est disponible sur l'App Store. ...

Optical characteristics of non-spherical scatterers . ... A list of reviews (under preparation) and links to the databases of Hovenier's and Gustafson's groups on the visible/infrared and microwave light scattering experiments, respectively. ... Light scattering codes . ... Benchmarks in optical properties . Tables of different light scattering characteristics carefully calculated by different codes (methods). Dependence of optical properties on scatterer parameters . ...

NAUTICAL ASTRONOMICAL ALMANAC for 2002-2003 (in Russian) . Foreword . Institute of Applied Astronomy (IAA) of the Russian Academy of Sciences (RAS) and Admiral Makarov State Maritime Academy (AMSMA) submit a new тАЬNautical Astronomical AlmanacтАЭ (NAA-2) biennial for deck officers. ... NAA-2 consists of two parts: one is variable parameters, computed in IAA RAS and the second one is constant parameters, made jointly by IAA RAS and AMSMA. ... Director IAA RAS . President AMSMA . ...

Starting Apache on Windows . Starting Apache on Unix . ... If the Port specified in the configuration file is the default of 80 (or any other port below 1024), then it is necessary to have root privileges in order to start Apache, so that it can bind to this privileged port. ... As an alternative to invoking the httpd binary directly, a shell script called apachectl is provided which can be used to control the daemon process with simple commands such as apachectl start and apachectl stop . ...

... JSC Oral History . NASA History . ... NASA Oral History Project: Earth System Science at 20 . This NASA Oral History Project features recollections from those who significantly contributed to the launch and evolution of Earth System Science. These interviews were gathered as part of the 20th anniversary of the Earth System Science Program. ... NASA Headquarters, Washington D.C. Program Manager , Stratospheric Theory and Data Analysis, Earth Science and Applications Division . ...

... It runs on unix, MacOS and possibly on Windows. ... On MacOS or Windows, double-click TUI. If MacOS complains that the application is unsigned then right-click TUI and select Open. ... If you have never run TUI before, set up your preferences before proceeding (for help on any item, right-click on the control and select Help from the menu that appears): . ... To save your window positions and remember which windows to open at startup, select Save Window Positions from the TUI menu. ...