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IMARK

Marks the current position, the current list of positions, or reads source positions from a file and marks them on the image currently displayed. If reading positions from a file, the file may be a text file with RA/DEC in one of the standard formats and separated by one or more spaces, or it may be an ASTERIX source list file as output by PSS. If using a text file, then the filename should be enclosed in double quotes. The symbol, size, colour and boldness may be specified.

A further mode may be invoked by giving a null (!) filename. In this case separate HDS arrays for RA and DEC will be requested.

Symbols may be numbered by specifying the NUMBER keyword.

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