... ACS Instrument Handbook . ... Advanced Camera for Surveys Instrument Handbook for Cycle 20 > Chapter 9: Exposure-Time Calculations > 9.5 Extinction Correction . 9.5 . Extinction Correction . ... Figure 9.3 shows the average . ... Large variations about the average are observed (Witt, Bohlin, & Stecher, ApJ , 279, 698, 1984). ... Sample extinction curves can be seen in Koornneef and Code, ApJ , 247, 860 1981 (LMC); Bouchet et al., ... Figure 9.3: Extinction versus wavelength. ...

... Science . ... Science Users Information > Science Publications > Science Announcements . ... Observing with ESO Telescopes . ... Published: 04 Apr 2014 . ... First data releases of the Elais-S1 and CDFS fields have just been made available. ... The zCOSMOS-bright advanced data products are now available via the Science Data Products query form of the ESO Archive . ... The Call for Proposals for observations at ESO telescopes during Period 94 (1 October 2014 - 31 March 2015) has been released. ...

Next: Phenology Garden Up: Buildings, Grounds, Library and Previous: Buildings, Telescopes and Telescope Contents . Strong support for the provision of a new Library, Archives and Historic Scientific Instruments Building was expressed by the Board of Governors at their annual meeting in March 2004. ... During 2004 the project was advanced largely by John Butler, who prepared a detailed application for external funding to support the proposal, which is intended to be submitted to the HLF in 2005. ...

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronado€о Solar . ... Spotting Scopes . ...

... insbs instrument=<instr> ra=<ra> dec=<dec> apos=<apos> bstoolsout=true|false . ... Given the viewing direction of the star tracker in terms of Right Ascension and Declination of the boresight + astronomical position angle insbs computes the viewing direction of the instrument specified via the instrument parameter - result is written to stdout in verbose form (default) or as a strbs command line if bstoolsout =true. ...

Next: Filter descriptors Up: Instrument configuration and Previous: Columns REDLEAKRLTYPE, . Properties of the instrument that are associated with the instrument as a whole, rather than with a particular filter or detector channel, belong in descriptors in the instrument table file. ... The descriptors are summarized in Table . Filter descriptors . Descriptor NFILTCAR . Character descriptor FILTCAT . Character descriptor FILTSTAT . ... Mon Jan 22 15:08:15 MET 1996 ...

Next: The Focal Plane Instruments Up: No Title Previous: The X-ray Optics . CXO has two focal plane instruments - the High-Resolution Camera (HRC) and the Advanced CCD Imaging Spectrometer (ACIS). Each of these instruments, in turn, has two detectors, one optimized for direct imaging of x rays that pass through the optics and the other optimized for imaging x rays that are dispersed by the objective transmission gratings when the latter are commanded into place directly behind the HRMA. ...

... You have to get this fractious bunch of ego-maniacs to come to a consensus on which new facilities should be funded, to advance our knowledge of galaxy formation and evolution. ... They will also have some particular science questions that appeal to them, and some special expertise in particular areas of high redshift research. ... You could let people vote at the end, but not for their own project. You might try and force the different groups to join in consortia to propose particular shortlists. ...

... Taken from the NASA/JPL information summary "Our Solar System at a Glance". The National Aeronautics and Space Administration's (NASA's) automated spacecraft for solar system exploration come in many shapes and sizes. ... Electrical power is required to operate the spacecraft instruments and systems. ... Between 1959 and 1971, NASA spacecraft were dispatched to study the Moon and the solar environment; they also scanned the inner planets other than Earth -- Mercury , Venus and Mars . ...

... The client which requests updates from the server is called the ``query'' client. ... Communications sample program: instrument control server */ /*-----------------------------------------------------------*/ # include stdio.h # include karma_conn.h # include karma_dm.h # include karma_ch.h # include karma_r.h # include karma_e.h #define PORT_NUMBER 10000 STATIC_FUNCTION ( flag periodic_func, (KPeriodicEventFunc func, void *info) ); STATIC_FUNCTION ( flag read_func, ( ...

This workshop on Deep Field Imaging is organised by Cavendish Astrophysics and is part of the Marie Curie Conferences and Training Courses on the Square Kilometre Array Design Studies (MCCT SKADS.) The aim of the EU MCCT programme is to promote, discuss and disseminate SKA and SKADS ideas to young researchers in order to provide the next generation of European astronomers with basic and advanced scientific and technology knowledge. ... Challenges for reducing deep imaging observations . ...

... Charge Coupled Devices (CCD) are currently by far the most widely used type of detector in astronomy. ... After a brief introduction to the VLT Control System, the VLT CCD Detectors Control Software is presented. The VLT Control System is a distributed system consisting of a set of UNIX Workstations, dedicated to high level operations, such as coordination of sub-system activities and interface to the users, and VME-based Local Control Units (LCU), dedicated to the control of sub-systems hardware. ...

Log windows display messages from all "actors" (instruments, the TCC, the hub...) and allow you to send commands. Controls along the top allow you to filter out unwanted garbage or highlight messages of particular interest. ... Regular Expressions . ... The entry field for "+ Actors" and "+ Commands" filtering accept space-separated regular expressions . ... If you plan to send many messages to a particular actor, you may select the actor from the menu next to the command entry field. ...

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

... Moore Observatory is a research and advanced teaching facility of the University of Louisville. ... The 24-inch Ritchie Chretien (RC24) telescope is a research instrument used by faculty and graduate students involved in studies of exoplanets, optical properties of the atmosphere, and the development of imaging and spectroscopic technology. ... Kent (CDK20S) are collaboratively operated by the University of Louisville and the University of Southern Queensland for both research and education. ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

... a) As source material for the high-school or college curriculum, especially in physics. astronomy and their history. (b) As a source of supplemental projects by high school students or by undergraduates. (c) As material for independent studies, In particular by motivated students who seek to know more about space . ... Those wishing to look up specific topics are advised to use the index file, accessible from the end of any "Exploration" file. ... files not listed and at other resource material. ...

... a) As source material for the high-school or college curriculum, especially in physics. astronomy and their history. (b) As a source of supplemental projects by high school students or by undergraduates. (c) As material for independent studies, In particular by motivated students who seek to know more about space . ... Those wishing to look up specific topics are advised to use the index file, accessible from the end of any "Exploration" file. ... files not listed and at other resource material. ...

... A Workshop Focused on the Concept Development . ... at the Arecibo Magnetic Conjugate Point in Argentina . ... NAIC - Arecibo Observatory, Puerto Rico . General meeting information . ... The Arecibo Observatory . ... Present Science Objectives of the Aeronomy Program at the Arecibo Observatory . ... Prospective Science Opportunities for the Aeronomy Program of a Southern Hemisphere Observatory located at the Arecibo Conjugate Point in Argentina that complement the Arecibo Aeronomy Program . ...