... AstroGuide | ... Astro Images . ... Whirlpool Galaxy . Image by Jason Ware, Galaxy Photo . ... Courtesy of Jason Ware, Galaxy Photo . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

Next: Power Law fit to Up: Spectral Analysis Previous: Error Determination . With PROS2.3 all fitting is performed using Poisson statistics , rather than Gaussian, so that results will be correct even for small counts ( ) in some channels. Power Law fit to a Point Source . Raymond Model . Two-Temperature Raymond Model . Limiting Energy Channels Input to the Fit . Multiple Data Sets . ... Fit a source with a small number of net counts . Inspection of results . ...

... The topic of controlling scan timing is discussed in detail in the Scan Times section . ... It is distinguished from DURation only in that the start time of the scan will be delayed until SCHED expects all antennas to be on source. ... 2010, DWELL has acquired second and third arguments. ... In such a circumstances, the scan will still start when first group of antennas (other than those the second argument says not to wait for) get to source, so those antennas will get a longer scan than specified....

... region (region-7.9.3) [xmmsas_20080701_1801-8.0.0] . ... The basic source region shape is a circle. There are three ways to assign the radius, specified via the parameter radiusstyle : . radiusstyle =`userfixed'. ... In this choice, the task uses for the source region radius that value which encloses energyfraction of the total flux under the Point Spread Function (PSF). ... At present the effect of this reprojection on the source region contours is ignored and circles are retained. ...

Stellarium 0.12.3 . ... Classes . ... ClassљList . ... TuiNodeActivate Class Reference . ... voidљ . ... TuiNodeActivate (const QString &text, QObject *receiver, const char *method, TuiNode *parent=NULL, TuiNode *prev=NULL) . Create a TuiNodeActivate node. ... virtual TuiNodeResponse љ . handleKey (int key) . ... TuiNode (const QString &text, TuiNode *parent=NULL, TuiNode *prev=NULL) . ... virtual TuiNode *љ . ... virtual voidљ . ... Contains the numbers of the parent nodes in the hierarchy. ...

... The most important command for the new user is the HELP command. Typing HELP invokes the system's help facility. ... It is possible to navigate through the help libraries by letting the system tell you what information is available at any given level. ... When you type a HELP command, the help facility will briefly describe the command and its parameters, and will often ask you to supply the name of a subtopic on which you want additional information. ... Additional Help Libraries: . ...

... Drag data has the following properties: . Drag action type (ie GDK_ACTION_COPY, GDK_ACTION_MOVE). ... A GDK_ACTION_COPY would be a typical drag-and-drop without the source data being deleted while GDK_ACTION_MOVE would be just like GDK_ACTION_COPY but the source data will be 'suggested' to be deleted after the received signal handler is called. ... Sent and received data format types ( selection target ) come into play only in your request and received data handler functions. ...

... public class WindowManager . ... This class consists of static methods used to manage ImageJ's windows. ... static void . ... Adds the specified window to the Window menu. static boolean . ... Returns a reference to the active image or null if there isn't one. static ImageWindow . ... Makes the image contained in the specified window the active image. static void . ... Returns the first image that has the specified title or null if it is not found. public static void addWindow (java.awt.Frame win) ....

... This function can also be used for particular types of subtypes or kinds: KIND (0) integer KIND (0.0) floating point number KIND (.FALSE.) logical variable KIND ("A") string of characters There is an intrinsic function SELECTED_REAL_KIND , which returns the kind of the type REAL that has a representation with (at least) the precision and the exponential range requested. ... With the choice SELECTED_INT_KIND (5) all integers between (but not including the limits) -100 000 and +100 000 are permitted. ...

Allows you to specify a drift scan: motion at a constant velocity along a great circle. ... The path starts at the new object position (though the telescope actually intersects the path later, see Subtleties ). ... Note that the units are always /sec for both axes. ... The velocity along the path is 0.01 /sec. ... The path is assumed to start when you hit the Slew button (more precisely, when the TCC parses the command). However, it takes the telescope awhile to slew to meet the specified path. ...

... comedi_data_read -- read single sample from channel . ... int comedi_data_read (comedi_t * device, unsigned int subdevice, unsigned int channel, unsigned int range, unsigned int aref, lsampl_t * data); . Reads a single sample on the channel specified by the Comedi device device, the subdevice subdevice, and the channel channel. ... The function comedi_data_read() reads one data value from the specified channel and places the data value in the location pointed to by data. ... comedi_data_write ...

... The initial descriptions of the FITS format provided a simplified method for describing the physical coordinate values of the image pixels, but deliberately did not specify any of the detailed conventions required to convey the complexities of actual image projections. ... They were CRPIX n for the reference pixel location on pixel axis n , CRVAL n for the coordinate value at that pixel, CDELT n for the increment at that pixel in the coordinate value, and CTYPE n for the type of coordinate. ...

... Apache HTTP Server Version 2.2 . ... On systems with multiple users, each user can be permitted to have a web site in their home directory using the UserDir directive. Visitors to a URL http://example.com/~username/ will get content out of the home directory of the user " username ", out of the subdirectory specified by the UserDir directive. ... Per-user web directories . ... the URL http://example.com/~rbowen/file.html will be translated to the file path /home/rbowen/public_html/file.html . ...

... Therefore, the menu location # "Blur/Blur" specifies an item name of "Blur" in a submenu entitled # "Blur". ... It is convention to only use the `alt' and `shift' key modifiers for # plug-ins. ... The main application will not use the ` alt ' # or ` shift ' key modifiers. plug-in blur Blur / Blur Alt Key B Alt +B plug-in gauss Blur /Gaussian Blur Shift Alt Key B Shft+ Alt +B plug-in gauss_rle Blur /Gaussian Blur RLE plug-in gauss_recurse Blur /Gaussian ...

... The simplest way to convert PostScript files into PDF on our Linux machines is to use the ps2pdf command, e.g. ps2pdf file.ps file.pdf . ... If all original files contain only one page then the resulting PDF document would have have one page for each file. ... Step: Add a pdfmark operator in the set-up section so that the list of bookmarks in the resulting PDF document is visible on the left hand side when the file is opened: . ... where bookmark_file is an ASCII file containing the pdfmark...

OptInt PmWiki : Pm Wiki / Page List Templates . ... template first:) . ... template last ...:) sections to specify output for the first or last page in the list or a group. ... template]] (:template defaults order=name:) (:template first:) Pages ordered by group (:template first {=$Group}:) Pages in group [[{=$Group}/]] (:template each:) * [[{=$FullName}]] (:template last {=$Group}:) {=$Group} contains {$$GroupPageCount} pages. (:template last:) {$$PageCount} pages total. [[#templateend]] . ...

To proceed to drawing tracks of some objects select Tracks item in menu bar and then select Input Data in drop-down menu. Enter initial and final dates of time interval in corresponding data fields of the Input Data dialog box Input Data . ... The frame with horizontal and vertical scales corresponding to the right ascension and declination axes appears on screen. ... Depending on specifications introduced in the Input Data dialog box the picture represents tracks up to three different objects. ...

... Triangle Service Station, Seaford, Virginia (Summer 1954) York Air Conditioner, Warwick, Virginia (Summer 1955) Colonial National Park, Yorktown, Virginia (Summer 1956) NACA Langley Aeronautical Laboratory, Hampton, Virginia Math Aid, Structural Dynamic Section, High Temperature Branch , Pilotless Aircraft Research Division (1957-1958) Research Engineer , Analysis and Computation Branch , Structures Research Division , ... B. Johnson Space Center, Houston, TX. ...

Computer Ephemeris. Ephemeris for physical observations of Saturnian rings. Explanations. ... semimajor axis of outer ring - a - (seconds), . ... planetocentric longitude of the Earth minus 180 o - U - (degrees) . ... position angle of semiminor axis of the rings- P - (degrees) . ... heliocentric position angle of semiminor axis of the rings - P' - (degrees) . angular distance from ascending node of the rings on Earth's equator to ascending node of the rings on ecliptic- omega - (degrees) ...