The research explores whether the day period of a planet can be a function of its circumference, focusing on the unique behaviors of Saturn and Jupiter, which have day periods closely matching their circumferences. The study uses data analysis to assess the motion distances and day periods of various planets, ultimately questioning the relationship between a planet's day period and its circumference based on gravitational principles. The findings suggest a need for deeper analysis, particularly regarding the motion of the Moon in relation to planetary behavior and distances.