RADECGRID - plot a sky grid suitable for plotting RA and declination.
RADECPLOT - plots points on the screen. Data should be in decimal degrees.
RADECTOGAL - converts data from RA and declination to galactic longitude and latitude.
GALTORADEC - converts data from galactic longitude and latitude to RA
and declination.
FITS - extracts a cross section from a FITS image. Argument
is the start and end columns to use.