My bet ? What they will find here is the Iron Chicken. Paul McAuley, who has been a Clangers scholar in his time, may have more to say about this at the increasingly interesting Earth & Other Unlikely Worlds. Or he may not. Meanwhile I am carefully sifting evidence from the relevant episodes.
You’re on to something, I reckon.
If the Iron Chicken is hanging out at either the L4 or L5 point, then the Clangers’ little planet must be hanging out there too; after all, the Iron Chicken’s nest is the Clangers’ moon (not an uncommon arrangement it turns out – many asteroids are accompanied by smaller bodies). The pan at the beginning of each episode suggests that this is very likely; Earth isn’t all that far away.
If someone plans to send a probe, by the way, they’d do well to remember what happened last time:
Thanks, Paul: I knew we could depend on you for the technical perspective.
Damn. That Oliver Postgate knew his stuff, didn’t he?