Download SalsaJ from the Hands On Universe Website.
Launch SalsaJ.
Download the 
or the .
Download open cluster data. If you don't have an observing session, you can search the public archive for open clusters from this list.
Use the screencasts below to learn how to use SalsaJ and the CMD plotter to make a color-magnitude diagram for an open cluster:
Part 1:
Part 2:
