>>49053082That could be the case if the moon and the planet are tidally locked like Pluto and Charon. Instead of 6.7 days, it's 24 hours.
To do so, a moon must be pretty near to its planet. But a moon so close it will tidally lock the planet with an angular diameter of "only" 30' should be pretty small. That means the pokemon planet is maybe twice the size of the moon.