... 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. ...

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... 125, 1997 Gareth Hunt and H. E. Payne, eds. A Filtering KPNO L TEX Observing Proposals with Perl David J. Bell National Optical Astronomy Observatories, Tucson, AZ 85726-6732 Abstract. ... Observer A and prop osal information fields in these files are well-marked with L TEX tags, thus allowing automated extraction and imp ortation to observatory databases. ... L TEX Date Fields and Filter Output. ... Conclusion A A Perl script has b een develop ed for filtering KPNO L TEX observing prop osals. ...

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• The NOAO Web-based Observing Proposal System
• A New Entropy Measure Based on Multiple Resolution and Noise Modeling
• A User Friendly Planning and Scheduling Tool for SOHO/LASCO-EIT

XMM-Newton OM Response Files Page . ... Data Analysis SAS News What is SAS? ... The response files have the name om_effarea_<filter>_v2.0.rsp. The response files should be used in conjunction with a spectral data file containing the filter count rate. Such a data file may be created by editing the template filter file om_filter_default.pi with a fits editor such as 'fv' and changing the "RATE" and "STAT_ERR" entries in the SPECTRUM extension to the filter count rate and error. ...

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• XMM-Newton SAS: Watchout Page
• ICWG meeting, Iceland 2006
• Errors

. Filter wheels currently only hold 2 inch (50mm) square filters . The database is of all shared Apache Point Observatory Filters. Requests for filters are made through the Chief Telescope Engineer or a 3.5-m Observing Specialist. APO Filters Inventory Database .

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• Untitled Document
• APO Home Page
• Astrophysical Research Consortium - Apache Point Observatory

... MOTIVATION !Operations at observing sites should have quick and reliable access to the data, therefore observing sites are provided with their own local database server. ... SERVICE MODE OPERATIONS Standard service mode operations: !OBs produced by investigators are submitted to Garching. ... OBs moved to the operational database at Garching are replicated to the operational database at the observing sites by the same mechanism used for standard service mode Obs. ...

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• ESO - Archives and Catalogues
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... Apache HTTP Server Version 2.2 . ... This document describes the use of filters in Apache. ... The Filter Chain is available in Apache 2.0 and higher, and enables applications to process incoming and outgoing data in a highly flexible and configurable manner, regardless of where the data comes from. ... A wider range of applications are implemented by third-party filter modules available from modules.apache.org and elsewhere. ... There are two ways to use filtering: Simple and Dynamic. ...

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• Computational Methods
• Relevant Standards - Apache HTTP Server
• Standard stars

... Apache HTTP Server Version 2.2 . ... This document describes the use of filters in Apache. ... The Filter Chain is available in Apache 2.0 and higher, and enables applications to process incoming and outgoing data in a highly flexible and configurable manner, regardless of where the data comes from. ... A wider range of applications are implemented by third-party filter modules available from modules.apache.org and elsewhere. ... There are two ways to use filtering: Simple and Dynamic. ...

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• Relevant Standards - Apache HTTP Server
• mod_ext_filter - Apache HTTP Server
• LonGSp: Available Filters

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

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• Zen: AstroChallengesDB
• Full Text Search in databases
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STScI . ... Phase I Proposing . ... Astronomer's Proposal Tool . ... STScI solicits proposals for HST Observing, Archival Theoretical Research. ... HST Cycle 24 Phase II Proposal Deadline . The Call for Proposals (CP) invites the astronomical community to propose for observing time on HST in a given cycle (nominally one year in duration). It summarizes the policies and procedures for proposing in that cycle of HST observing, including requests for funding research on archival HST data. ...

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• Systematic Uncertainties Special Cases
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ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Staff list | Student list | Visitor list . ... Publications overview . ... Email discussion lists . ... Work experience for school students . ... Australia Telescope Online Archive (ATOA) . ... CSIRO ATNF Data Archives . ... The FITS specification has recently been updated and the regional . ...

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• Standard Stars - CCD Photometry, Transformations and Comparisons
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Open Systems Handbook: A Guide to Building Open Systems . ... This book is designed to provide interested individuals and organizations with an overview of open systems and the work being done to achieve them. ... This section is organized using a descriptive model of an open systems environment developed by the IEEE PI 003.0 Working Group, which is developing the Guide to POSIX-based Open System Architecture. ... Standards for open systems 13 . Chapter 3: The open systems environment (OSE) 15 . ...

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• Open System Handbook: A Guide to Building Open Systems

... 237S (SIMBAD/NED BibCode) ================================================================================ Keywords: Sun: UV radiation - atmospheric effects - Sun: atmosphere - lines: identification Description: An ultraviolet atlas of the solar spectrum with a spectral resolution of 15mA in the region 1948-2000A is presented. ... The wavelength atlas with a list of about 550 lines has been synthesized from data at center of the Sun ({mu}=1) and at {mu}=0.89, smoothed out over an area of 30 arcsec. ...

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Next: AXAF Recipes Up: ROSAT HRI Recipes Previous: Quantum Efficiency Correction (a.k.a. For some observations, a significant amount of data may have been rejected during SASS processing because the background level was higher than the calculated threshold for rejection. ... REJECTED EVENTS . ... The recipe will allow the user to include rejected events in the generation of a new qpoe file and filter on the background level. ... This creates a qpoe file with standard + rejected events. ...

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• The Funtools Help Facility
• Table Filtering
• The AstroStat Slog standard processing

... As the 430 MHz line-feed radar beam is approximately 300 m in diameter in the meteor zone, the sodium lidar beam will need to be expanded to approximately that diameter and the receive telescope suitably aligned and field-of-view adjusted. The lidar would be operated synchronously with the radar at the same IPP and raw data from each pulse would be retained for post-processing. ... The lidar IPP must be synchronized with the 1 msec radar IPP with data readout every IPP over the meteor zone. ...

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• http://www.naic.edu/~phil/mbeam/satur/fbAmps_apr05.html
• http://www.naic.edu/alfa/ealfa/meeting2/talks/IVO_kent_talk.pdf
• OBSERVING PROCEDURES

... Although many of the images are used for teacher-driven activities, students do have the opportunity to work with scientists on original research projects. ... The primary goal is to have teachers experience astronomy research and then to bring the research data into their classrooms via the internet. ... They also learn how to process their data, build a solar telescope to take home to their classrooms, and learn background information from astronomers in each of the three research areas. ...

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• ASP: Eclipse Watching: Making a Solar Filter
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Next: Definition of Scientific Misconduct Up: scientific Previous: Introduction . ... This Code of Good Practice closely follows the Statement on Safeguarding Good Scientific Practice issued by the Biotechnology and Biological Sciences Research Council (BBSRC) in 1998. ... The Observatory expects the highest standards of scientific integrity to be adhered to by the researchers, students and other staff that it funds, whether they are employees or associates of other institutions. ...

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• Simon Jeffery's Software Store: PHOT library
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• Armagh Observatory

... 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. ... MeadeтАЩs new LX70 Series offers high-quality German equatorially mounted telescopes with slow-motion controls and heavy-duty steel tripods. ... For crisp wide-field observing and imaging, few optical designs match the performance of a true triple-element apochromatic refractor. ... Meade Standard Field Tripod #07020. ...

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• Meade Standard Field Tripod - Tripods and Piers - Accessories - Products
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• Products

SITE 2010 Comprehensive Characterization of Astronomical Sites Kislovodsk, Russia, 49 October 2010 Conference Summary Marc S. Sarazin*a a European Southern Observatory, Garching, Germany Abstract The main topics discussed during the Site 2010 conference are outlined and the outcome is described. Keywords: Astronomical Site testing, precipitable water vapor, atmospheric turbulence, cloudiness, seeing 1. ... Site surveys for National observatory projects in China, India, and Iran benefit from this. ...

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Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

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... every new catalog of objects has to be contained in the UNIX directory having the same name as the catalog of objects; . ... the programs for local operations (programs of low level) with the catalog of objects are also in the same directory; . brief characteristics and names of the programs and file with the description of the catalog are stored in the file cats_descr ; . ... All astronomical catalogs have a different format and list different observables. ...

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• C, UNIX and Standard Libraries
• Приложение B. Requests for Comments (RFC), связанные с информацией приведенной
• Database "Stellar Spectra"