The Isis Adventure

I'm stuck. I know the difference from the second ring than the others. I also know the planets, celestial bodies, and the numbers. I have also figured out which key hole is different than the others. I'm not sure if I have the puzzle solved or not, but I can almost guarantee I am!!!!!! If anyone can help that would be great. If you are an admin and want my predictions for the amount of clicks and all of that let me know. BTW: I have the marbles edition. Thanks to anyone who helps.

Hi! Welcome and hope you are about to solve it^^ Sorry I can't help you, I'll buy one only when I manage to open my ramisis.

The key should come out when you solved it, but if you like to double check your solution you can send me a pm.