Mure day

A Mure day was the period of time required for the planet Mure to complete one around its  with respect to the North Star, known as a. For Mure, given its lack of a, its rotational velocity was significantly greater than that of conventional s, resulting in a that was defined as 64,800 standard seconds or 18 standard hours.

The only force gravitationally acting upon Mure was its world-encompassing, the Celestial Gates. This hollow was located in the planet's upper  and rotated about Mure's axis in a. Though its relatively small mass and close proximity to the planet produced less of an effect on Mure's rotational velocity than a moon or minor planet, the megastructure's retrograde orbit was sufficient to keep Mure's rotational period at a reasonable length, preventing the world from experiencing days composed of single-digit hour counts.