Equally random (perhaps) is a passage from Jonathan Livingston Seagull. It was a wildly popular book in the 1970s and certainly left its mark on popular culture for decades. I’ve read it a few times through the years and below is a passage that always makes me wonder. It’s a long shot that it was an inspiration, but it was a very well known NYT best seller and widely read. It’s been referenced countless times in films, music, TV, etc
“Jonathan opened his eyes. He stood alone with the Elder on a totally different seashore - trees down to the water’s edge, twin yellow suns turning overhead”.
If there are other science fiction stories or films predating the 70s and referencing twin suns (and there may be several), I’m unaware of them.
Talos IV in the original Star Trek TOS pilot was a binary system. Spock mentions it in dialog at one point.
Good observation though!