Sky Commander Alignment Star Chart (pre XP4) The Alignment Star Chart (ASC) is a convenience for owners of the  Sky Commander computer/telescope systems. This is a single page sky chart which displays the names of the alignment stars in the memory of the computer. This allows the user to quickly choose appropriate stars to align on. Since the Sky Commander uses so many Greek letters, a small glossary of the ones uses is in the upper left corner of the map. The highlighted alignment stars are designated by the Greek letters just as in the computer.  Some command reminders and catalog names are on the reverse side. Charts are fully laminated.  $11 includes US shipping These can be purchased on line through PayPal above, or by mailing a check or money order for $11 each (be sure to specify which chart you want!) to: Duchek Consulting Services Email us for current address. (duchekcs@duchekconsult.com)