Annotating Axes with RA/DEC Values

After following the above procedure, you should find that POLPLOT automatically annotates your vector map with RA/DEC values. If you want to annotate the axes in pixel co-ordinates for any reason, specify the value ``PIXEL'' for the FRAME parameter when running POLPLOT. You can also choose to annotate the axes in several other common celestial co-ordinate Frames by supplying suitable values for parameter FRAME. Some examples:

FRAME=GAL - this will result in the axes being annotated with galactic co-ordinates.

FRAME=ECL - this will result in the axes being annotated with ecliptic co-ordinates (referred to the B1950.0 equinox).

Ecliptic and equatorial (RA/DEC) co-ordinates are referred to a specified equinox. The required equinox can be included, in parentheses, following the co-ordinate system name. For instance:

FRAME=EQU(J2000) - this will result in the axes being annotated with RA/DEC referred to the J2000.0 equinox. The RA/DEC calibration stored with the catalogue will be precessed if necessary.

FRAME=ECL(B1983.4) - this will result in the axes being annotated with ecliptic co-ordinates referred to the B1983.4 equinox.