Stargate the City of Atlantis

[heltenjon]

I'm stuck in an AGS short game that's not in the database, called Stargate the City of Atlantis or in original French Stargate la citée d'Atlantis. It is available here, in French and English:

Stargate la citée d'Atlantis by hanakin
https://adventuregamestudio.1fr1.net/t2404-stargate-la-citee-d-atlantis
in the french AGS community. The download link (from the forum)
http://dinomania.chez-alice.fr/Atlantis.zip

I have managed to do everything in my task list except for turning on the Stargate. I have found a panel where I think I need to match star constellations with my findings, but so far, my skills in pattern recognition have not been up to the task. I hope someone can offer some guidance here.