Registration Information
Hold down Ctrl+Option+Command and go to the Apple > About StarGazer's Delight... menu to open the registration dialog.

v4.3.1
Code: Stoned Albert

v4.5.1
Name: siddhartha
Code: 31246500

v5.0.x:
Name: siddhartha
Code: 31562100

v6.3
Name: siddhartha
Code: 34016640000