c	Show the star closest to the cursor location
	d	Delete a star (mark as not valid)
	f	Plate solution
	l	List the stars
	p	Find the peak of the star inside the search box
	q	Quit
	s	Select a star to move
	u	Undelete a star (mark as valid)
	:	Commands with arguments, see below

	:b size	Set the search box size in pixels
	:d row	Delete the listed star by number
	:D	Delete all stars
	:f file	Write the fit coefficients to a file
	:n num	Set the number of fit coefficients
	:s file	Write the valid coordinates to a file
	:u row	Restore the listed star by number
	:U	Undelete all stars