... 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. ...

... There are five standard data formats for HSP data. ... The datasets contain a standard header packet , a unique data log , and one to four science data files (and corresponding data quality files). ... HSP Data Files . ... Science data, digital sky .d2h/.d2d . ... Each of the science data files has a corresponding quality file that contains single-precision floating point values. ... The HSP calibration program, calhsp , generates the calibrated file for each corresponding raw science data file. ...

dfos = Data Flow Operations System, the common tool set for DFO . ... phoenix: the process . ... Internal data products (IDP) . ... When this process was terminated in October 2011, it was replaced by a service to associate science data to quality-checked and certified master calibrations. ... The main goal remains - creation of science-grade data products, hence a master calibration phoenix project is normally always followed by an IDP project. ... Data product standards . ...

... Up: Archiving . ... We describe the hierarchy and organization of the data products in the archive of the Chandra X-Ray Observatory. ... It is implemented in the Chandra Data Archive environment through a set of standard FITS header modules prescribed for all data products. ... The Chandra Data Archive (CDA) is depository as well as source of information for all Chandra-related activities (Proposal submission and management, Mission Planning, Automated Processing, Data Retrieval). ... Primary array,...

This module provides for the customization of HTTP response headers. ... This module provides a directive to control the sending of HTTP headers. ... Header . ... Syntax: Header set|append|add header value . ... Module: mod_headers . This directive can replace, merge or remove HTTP response headers during 1xx and 2xx series replies. ... set . The response header is set, replacing any previous header with this name . ... The response header is appended to any existing header of the same name. ...

... administrators (intermediate) There are many ways to configure PmWiki:WikiFarms , and some of the documentation uses different terminology to describe the same things. ... A wiki farm is nothing more than multiple wikis that share the same installation of the PmWiki software. ... All of the wikis in a farm are more or less the same, except the "home wiki" is a wiki that is located in the same directory as the PmWiki software. ... Any wiki in a farm which is not the home wiki. farm administrator . ...

... Apache HTTP Server Version 2.4 . Apache > HTTP Server > Documentation > Version 2.4 > Miscellaneous Documentation . ... This page documents all the relevant standards that the Apache HTTP Server follows, along with brief descriptions. ... http://www.rfc-editor.org/errata.php - RFC Errata . ... This document summarizes the history of HTML development, and defines the "text/html" MIME type by pointing to the relevant W3C recommendations. ... HTML documents are SGML documents. ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > Miscellaneous Documentation . ... This page documents all the relevant standards that the Apache HTTP Server follows, along with brief descriptions. ... http://www.rfc-editor.org/errata.html - RFC Errata . ... This document summarizes the history of HTML development, and defines the "text/html" MIME type by pointing to the relevant W3C recommendations. ... HTML documents are SGML documents. ...

Following are instructions to build and install the programs in this distribution. Make sure that you have all necessary tools for building executables. ... The automatic build process expects a configuration file called Config.local . ... The configuration file specifies the directory in which to install the binaries, as well as control over the generation of debugging code and reference clock support. ... Cleans out object files, programs and temporary files. make distclean . ...

... Watchouts . ... The difference between the "standard matrices", available in the XMM-Newton calibration pages , and those generated via the SAS tasks arfgen and rmfgen is now virtually negligible, at least as long as one is concerned with spectral fitting of point-like, on-axis sources. ... If one has a spectrum with very good statistics in an emission line with centroid energy larger than 2.5 keV ( e.g. : the Iron K-alpha line), one should be careful about using the "standard" matrices. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . ... MeadeтАЩs new LX70 Series offers high-quality German equatorially mounted telescopes with slow-motion controls and heavy-duty steel tripods. ... Tripods and Piers . ... Meade Standard Field Tripod . ... Meade Standard Field Tripod #07020. ... The Standard Field Tripod gives your Meade the rock solid, research-grade foundation needed for demanding applications such as high power observing and astrophotograpy/imaging. ...

... AstroImageJ (AIJ) .. ... Reads and writes FITS images with standard headers . ... Provides a time and coordinate converter tool with capability to update/enhance FITS header content (AIRMASS, BJD, etc.) ... Creates color images and with native ImageJ processing power . ... AstroImageJ_Updater . Update operation now updates AIJ version number in Info.plist CFBundleVersion and CFBundleShortVersionString (MacOSX only) . ... AstroImageJ is ImageJ with astronomy plugins and macros installed. ...