First time I saw this, I said "that's wrong ... wait, that's *right*!". One rule of drawing Earth's Moon is that the horns are always 180° apart. That fits the two small moons but not the large. Then I realized that it's Titan, with light refracting around in its atmosphere!
Hourly CosmosRhea, Titan, and Mimas Together - From Val Klavans (valklavans.bsky.social) - https://flic.kr/p/rSzfy8