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]. ...