ASTAP is a free Plate Solver by Han Kleijn.  More information can be found at

If you'd like to use this solver during an SGPro sequence, you'll need to download it and set it up.  

  • Download ASTAP (64-bit):
  • Download ASTAP (32-bit):
  • Download the ASTAP star catalog:

Now, you just need to tell SGPro where you installed ASTAP.  Click the "Tools" menu item, the "Options".  Then, at the top of this dialog, click the "External Apps" tab.  Find where you installed ASTAP:

That's it!  You're ready to go, just select it in a sequence (in the Control Panel) or in an equipment profile (in the Profile Manager).

Please Donate to Han!