I would recommend watching this guys what's in an OP series. He did 2 videos covering the first 4 OP's of Jojo and they nail nearly everything.Been rewatching Stardust Crusaders with some friends. During the opening I noticed an extra shooting star heading off on the ride side of the screen near the start of the opening. What's this a reference to? I can't think of what it would be.
That star is supposed to be Iggy. It's off to the side because it's arriving very late where the first 5 stars are Jotaro, then Joseph and Avdol, then finally Polnareff and Kakyoin arriving slightly later. Of course the analysis spoils that part but you said you are rewatching it so it's cool for you.
https://m.youtube.com/watch?v=ox5wWOgYTzs