To convert from pixels to RA and Dec. first view image with SAOimage. Set cursor on object of interest. Read pixel coord from SAOimage (coord must be on). Run skypix in separate window. Type pixel coords in skypix.
xr> xspatial xs> skypix.oformat = ``hours'' # to reset the default which is ``degrees''. xs> skypix input coordinate system (J2000): xdata$rh110267_img # the image file name output coordinate system (J2000): image # to use coord conversion # in image file header or B1950 or J2000 # epoch of output can be specified input file list (STDIN): <cr>
145 276<cr> # pixels read from SAOimage 22:08:41.6 45:44:38.0 # RA and dec. 256 265<cr> 22:07:16.8 45:42:00.0 ctrl d # to quit