skycoor(1) General Commands Manual skycoor(1)
Name
skycoor - Convert coordinates
Synopsis
skycoor [-bdgjv] [-n ndec] ra1 dec1 sys1 ... ran decn sysn
or
skycoor [-vbjg] [-n ndec] @listfile
Description
skycoor converts coordinates between the J2000, B1950, and galactic coordinate systems, rounding to a specified number of decimal places
and printing in degrees or hh:mm:ss.sss dd:mm:ss.sss. Input coordinates may also be in either format, and the system (J2000, B1950, or ga-
lactic) may be in upper or lower case. No spaces are allowed within the individual coordinates
Options
-b B1950 (FK4) output
-d RA and Dec output in degrees
-e Ecliptic longitude and latitude output
-g Galactic longitude and latitude output
-i r|d|
Input units (r=radians, d=degrees, else hh:mm:sss dd:mm:sss)
-j J2000 (FK5) output
-n <num>
Number of decimal places in output RA seconds
-o <num>
Offset coordinates by this many arcseconds
-p RA and Dec proper motion in milliarcseconds/year
-q Output system, including equinox
-r <RA> <Dec> <RA> <Dec>
Angular separation between two RA, Dec pairs
-s Output ra= dec= epoch= radecsys= for sethead
-v Print more intermediate information
-w Convert RA, Dec equatorial coordinates to x,y,z
-x Convert x,y,z equatorial coordinates to RA, Dec
-y <epoch>
Epoch of coordinates in years
Author
Doug Mink, SAO (dmink@cfa.harvard.edu)
9 November 2001 WCSTools skycoor(1)
