what about headcanons for moons not in the show
I have a few!!! I really like learning about moons so....
-Phoebe is the big sister to all the Norse group. She's the closest big moon to them, and as a result sort of made herself act older than she really is because they needed someone
-Alongside that, Phoebe has chronic pain. The moon Phoebe used to be spherical, but because of how many collisions it was in it's no longer spherical. On Earth's surface she has crutches
-Helene, Calypso, Telesto, and Polydeuces are Dione and Tethys' trojan moons. They're all Velcro siblings, and don't like being apart from their older siblings for long
-Saturn's three moons Methone, Anthe, and Pallene are thought to have come from Mimas' collision. They like to follow around their big brother like little ducklings
-Saturn's shepherd moons are terrified of him after learning they're maintaining rings made from a moon. Whenever he looks too close to his rings they all scatter
-Pan is a hyper moon, Daphnis is selectively mute and obsessed with tea parties, and Atlas is bad with emotions and collects rocks
-Fenrir, Skoll, and Hati are obsessed with wolves. They're named after wolf gods after all
-Ymir and Skathi hover and follow Phoebe and Iapetus because they want to be like their older siblings. Ymir wants to help Phoebe around because there's "210 Norse moons and only one Phoebe!"
-Janus and Epimetheus are identical twins! They swap orbits whenever they want to borrow items from one another
-Pandora learned about Chrysalis' identity, and she's the one to reveal it to the other shepherds. Based on her name, Pandora is an overly curious moon
-Prometheus likes science! He's the one to help figure out who Chrysalis is through data samples and other stuff. He asked Earth about a lot of it
-Also, an in general headcanon for shepherd moons of every planet is that they can't stay awake outside their orbits! Because of how much time is spent maintaining the rings and pushing rocks out of their orbit, whenever they're out of orbit, they're too tuckered out to do anything
-Jupiter's moon Carme has an issue with being a captured object. She's not upset about it; she's scared of being out of place in her system and not being good enough to be a Jovian moon. She asks the other captured objects how they feel about it a lot which isn't helpful because most of them don't care
-Carme's also a giant nerd, she has glasses with the thickest prescription
-His moon "Megaclite" goes by Meg because she got bullied on Earths surface
-Adrastea hides behind Metis, she was there the whole time in the show we just never saw her
-Himalia remembers being whole before the asteroid broke. I named the asteroid the Himalia group is from "Hestia" because that was the original nickname for her!
-She also paints she keeps it a secret. No one knows about it
-Ananke once got in trouble for trying to pierce his little siblings ears
-Pasiphae is not a pacifist he's the opposite. He likes to try to fight celestials bigger than him
-Valetudo loves superman, she's obsessed with him and wants to be just like him. When Carme asked how she felt about being a captured object she said: "I'm Superman :)"
-Themisto's shy, he once got trapped against an asteroid and no one knew for a full Jupiter day because he didn't want to bug anyone
-Kore was named after Persephone because Jupiter knew she'd be a troublemaker. She's the sweetest, but just can't help but accidentally wander off
-All of the smaller Jovian moons have the thickest southern accents imaginable it's really cute
-Puck's a trickster, but all of his pranks are harmless
-Rosalind's the most extroverted out of all of Uranus' moons, but has the same social battery as the rest of them
-Desdemona is obsessed with horror. Juliet watches horror movies with her despite Juliet having a weak stomach to that sort of stuff and overall having really bad anxiety
-Sycorax is similar in personality to Neptune because of how far her orbit is from everyone else. She's completely secluded from the other Uranian moons
-Cordelia and Ophelia have a big staring problem
-Ferdinand is the biggest sweetheart ever, him and Cupid love clinging to all of their siblings
-Portia's aware of what'll happen to her group, but she hasn't told anyone. She wants to live in blissful ignorance and be a kid while she still can
-All of them love art and are good at it in some way
-They have mittens sewed onto their sleeves because all of Uranus' moons gained the same stress habit he did-picking at his feathers. Their planet doesn't want them to be balding
-Cressida loves cameras but accidentally had the flash on once and flash banged Uranus when trying to take a photo of him
-Stephano, Prospero, Setebos, and Caliban are afraid of being forgotten. They're so far from Uranus and are already barely studied
-Trinculo tells jokes but forgets the punchlines
-S/2021 N1 was only found because Neptune could hear her crying. Because it's the furthest from its planet in the entire solar system, he wasn't able to find her when she first formed
-S/2002 N5 is bad with directions. He almost got lost in his orbit once, so Neptune makes sure to keep an eye on him
-As the two youngest in the system, they're normally just tucked away in Neptune's pocket. That's why they're not in the show