>>5471475In addition to this, with one of my player's specializing into moon worship/moon magic, here's a moon phase chart detailing the two moons and their appearances in the sky.
That's essentially 24 unique combinations of their phases:
Double Full Moon
Double Waning Gibbous
Big Last Quarter, Small Waning Gibbous
Big Waning Crescent, Small Last Quarter
Big New Moon, Small Waning Crescent
Big Waxing Crescent, Small Waning Crescent
Big First Quarter, Small New Moon
Big Waxing Gibbous, Small Waxing Crescent
Big Full Moon, Small Waxing Crescent
Big Waning Gibbous, Small First Quarter
Big Last Quarter, Small Waxing Gibbous
Big Waning Crescent, Small Waxing Gibbous
Big New Moon, Small Full Moon
Big Waxing Crescent, Small Waning Gibbous
Big First Quarter, Small Waning Gibbous
Big Waxing Gibbous, Small Last Quarter
Big Full Moon, Small Waning Crescent
Big Waning Gibbous, Small Waning Crescent
Big Last Quarter, Small New Moon
Big Waning Crescent, Small Waxing Crescent
Big New Moon, Small Waxing Crescent
Big Waxing Crescent, Small First Quarter
Big First Quarter, Small Waxing Crescent
Double Waxing Gibbous
Assuming a three-month cycle, four times a year, then each year there's about 12 full Big Moons, like our real moon's cycle, and thus about six small Full Moons, and four Double Full Moons a year.
Just flavor for the world, for those curious. Now I have to parse through all this dialogue you've had to figure out what we're doing in reaction to the random events.