ra_dec_to_pixel - sky to detector coordinates

  ra_dec_to_pixel[/qualifiers]

Converts RA and DEC into (current image) pixel coordinates. A small symbol is drawn at the corresponding position on the image if this has been previously displayed. The user will be prompted for the coordinates in the equinox specified using the equinox command.

ra/circle=arcsec

Draw a cricle with a radius in arcsec around the given position. Useful for drawing error circles

ra/ra=hms

Give the ra as part of the command line. The RA can be given as either decimal degrees or as hr, mn, sec. In the latter case it must be included in double quotes (e.g. /ra=``12 23 12.1")

ra/dec=dms

Give the dec as part of the command line. The dec can be given as either decimal degrees or as degrees, minutes and seconds. In the latter case it must be included in double quotes (e.g. /dec=``12 23 12.1")

Examples:

 
ra                                 ! Enter the RA and Dec from a prompt
ra/circle=600.0                    ! Draw a 600 arc sec radius circle centered
                                   ! at the given ra and dec
ra/dec="-61 12 1.0"/ra="11 45 2.1" ! Give the RA and DEc on the command line