Next: *skypix* conversion Up: Celestial Coordinates from Image Previous: Celestial Coordinates from Image . This will calculate coordinates from header information (therefore epoch 1950 for Einstein , epoch 2000 for ROSAT) and will present coordinates in hms,dms. st> xray xr> xplot xp> tvlabel ``xdata$rp110590n00.qp[block=10]'' . d for coordinates at cursor position. ... xp> xexamine ``xdata$rp110590n00.qp'' c for sky coordinates at cursor position q to quit . ...

... Circles are used to depict the source positions. ... A optional ID label can also be displayed alongside the circle, corresponding to the row num- ber of that source in the input source list. ... These circles are in fact DS9-type regions, which can be written out to a le for future use (for example, when running a later DS9 session) by setting withregionfile to true, and specifying the desired le name via the regionfile parameter. ... This is a text le containing region descriptions for each source...

. Search near object or position . Help . | HyperLeda home | Documentation | Search by name | Search near a position | Define a sample | SQL Search | . Object designation . Find coordinates in . Celestial position . Search radius . (arcmin) . Display an image from DSS . Display an image from . Display with . (java applet) . List objects in . order by right ascension designation . The lay-out of this page has been last modified on: 2002/05/05 . HyperLeda . Questions: leda@univ-lyon1.fr

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . In 1966 , the Earth passed right through the trail generated in 1899 (then 2 revolutions old), causing the most spectacular meteor display of the century. In 1999, the Earth again passes near the 1899 trail (now 3 revolutions old), but further from the trail's centre than in 1966. ... A fuller explanation of these trail cross section plots is available. Go to Armagh Observatory Leonid page . ...

Set the display of the status bar, tool bar, locator bar, and properties associated with the display of the pointer position in the Locator bar. ... Set fixed point . ... When the fixed point is set, and the display format is (DX, DY), (DIST), or (R, Theta) then give the location relative to the fixed point. ... Set the fixed point to (0.0, 0.0). ... DX, DY] Display the delta in X and Y of the position of the mouse relative to the fixed point, or (0, 0) if no fixed point has been selected. ...

The goal of this excercise is to make a Glish script to use various aips++ tools to Display an image . Use the cursor to mark a position location . Catch the position event that is so generated . ... glish -l ex2.g . ... You will need the "image" constructor and the "view" function. For example % glish include 'image.g' # Include Image tool script im := image('galaxy') # Access image im.view() # Display it . ... The event you want to catch from your image tool is called 'position'. ...

Next: Results Up: High Resolution Measurements from Previous: Introduction . The first step in PSA is to Fourier transform the image and calculate the square modulus of the FT to generate the power spectrum, . ... Specifically, one excludes the very lowest frequencies where the large scale nonuniformities in the image have the greatest effect, and one limits the fit to a frequency range where the SNR is sufficiently high. ...

This WWW form allows the user simplified access to images produced by the NRAO/VLA Sky Survey (NVSS). This service determines which NVSS image is desired based on a celestial position and returns either the image directly or a Web page with a link to the file. ... The NVSS Postage stamp (small FITS file) server can be used to obtain images with other geometries.) ... Web browsers use external viewers to display files like FITS images which they do not understand. ...

... This example illustrates the use of external files as the source for a layer. This example creates a web page for Nikki's Diner, which is a vegan restaurant that offers tasty daily specials. The web page contains some general information about the diner, and then offers a pop-up menu that lists the days of the week. ... These files contain HTML formatted text that describes the specials for that day. ... LAYER ID="menu" LEFT=50 WIDTH=400 src="specials/sat.htm"> </LAYER> . ...

... We present a new Tcl/Tk based GUI interface tool which features plotting of curve and image data and allows for user input via return of regions or specific cursor positions. ... Curves and Images may then be combined to form a displayed Graph. ... With the development of several GUI based tools for High Energy Astrophysics at the HEASARC, we found a need for a interface tool that supports combined curve plotting and image display in a native Tcl/Tk environment. POW is our answer. ...

... Display (spectra, total power). ... Using the data archive. ... entering cmds, editing cmd lines, input from files, batch, run. constants, variables,arrays, structures, operators, procedures, functions. programming in idl . ... A user would call arch_gettbl() to input the table (or a subset of it). corfindpat() can create subsets of the table. arch_getdata() or arch_getonoff() can be used to read in the spectra. ... input the data (spectra) for a subset of the archive table: arch_getdata () . ...

... To mark coordinate net in plot, first select Plate in menu bar and then Coordinate net in drop-down menu. ... User has possibility to save plot of sky or to print it using standard means. To save the file select File item in menu bar and then Save As... in drop-down menu. ... To print plot of plate select File item in menu bar and then take advantage of options Print Preview , Print Setup , Print. ... To return to the list of centers click on x button in title bar. ...

Many entry fields permit sexagesimal entry (h:m:s.s or :':"). ... Sexagesimal entry is flexible in that you can specify one to three fields, as you desire. ... Position entry widgets assume that a single field is decimal hours or degrees (h.h or . ... You may specify one to three fields: . ... Note: sexagesimal offsets and durations are entered in the same fashion, but a single field is decimal arc-seconds or seconds ('.' or s.s) and two fields are (arc) minutes and seconds (':"." or m:s.s). ...

. A pager is a program for displaying the contents of a text file one screenful at a time. The most commonly used pager programs are more and less . Most pagers have many other capabilities built in, such as searching for a particular piece of text. Did You Know? . Using the more pager . Using the less pager .

IRAF cl script to demonstrate the routines in the imaging polarimetry package # impol for WFPC2 # # Author; J. R. Walsh, ST-ECF. jwalsh@eso.org # # REQUIREMENTS: # An image display tool should be active. ... Create table of reflection nebula parameters from ascii file # ! ... Simply take # this as a fractional value of the linear polarization image # imarith operand1="reflneb1po.fits" op=* operand2=1.0E-4 result="reflneb1cir.fits" # # Form the set of input images for the positions of the polarizer. ...

... The package stsdas.graphics needs to be loaded (to run imdisp_pos for getting # the NDC's of the display image) # set imtype="fits" # print " " print " *** Start of impol WFPC2 demo *** " print " [stecf.impol and stsdas.graphics need to be loaded] " print " " # # (First delete any model reflection nebulae left over from previous demos) # print " Deleting any old demo files " imdel reflneb1*.fits verify=yes # # An input (intensity) image is required. ... First delete any previous list files # ! ...

... Next, the screen displays "Press 0 to align or Mode for Menu." Press "0" if you wish to begin Automatic alignment (or Easy Align, depending on your telescope model), or press Mode if you wish to choose a manual alignment method ("Automatic Alignment" displays, and you can press MODE to go through the menu to find other alignments). ... Note: If you press the "?" key while "Ctr Brightest Star" displays, the alignment star that AutoStar has chosen will display. ... Alignment successful" displays. ...

Stellarium 0.12.3 . ... Classes . ... Quasar Class Reference . ... Quasar (const QVariantMap &map) . ... Get a QVariantMap which describes the Quasar . ... getSelectPriority (const StelCore *core) const . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getVMagnitude (const StelCore *core, bool withExtinction=false) const . ... getAngularSize (const StelCore *core) const . ... getPositionInfoString (const StelCore *core, const InfoStringGroup &flags) const . ...

. md5 [ -0123456789 ] [ -h] file . This program generates the message digest of the given file using the RSA Message Digest 5 (MD5) and other selected algorithms. If file is not given, the program uses the standard input. -0123456789 . Select algorithm from the following list . -0 null . -1 MD5 . -2 SNEFRU . -3 CRC32 . -4 CRC16 . -5 MD4 . -6 MD2 . -7 SHA . -8 HAVAL . -9 null . -h . Display the result in hex; the default is base-64 . David L. Mills (mills@udel.edu)

... Masses are put in random positions within a sphere originally. ... RA (in radians) # Dec (in radians) ra = 2.0*math.pi* random () dec = math.acos(2.0* random ()- 1.0 )-0.5*math.pi return ra,dec def ranvec(): # Generates a randomly orientated unit vector. theta, phi = randomdirection() z = math.sin(phi) x = math.cos(phi)*math.sin(theta) y = math.cos(phi)*math.cos(theta) vec = numpy.array([x,y,z]) return vec # Stars interacting gravitationally # Program uses numpy arrays for high speed computations ...