Day-Night-Cycle

The pattern of natural light caused by the two different light sources in the star system.

Manifestation

Sunlight

One source of light is The Central Star. Most celestial bodies in the system slowly turn towards its center and then away again, either around their own axis or by orbiting a planet.

Seasons

The second factor influencing light on celestial bodies is their orbital position. During summer, when they stand between That Which Changes and The Central Star, the planet and any moons it may have receive light from both sides. In contrast, light only arrives from one direction during winter.
This means that for any given location on a celestial body the ratio between light and darkness slowly changes from 50% to 100% and back.

Localization

This pattern occurs on nearly every celestial body in the system. The only exceptions are The Outer Planetoid, which is nowadays kept in a fixed location, and The Burnt Planet, which is in tidal lock with The Central Star.

Type

Natural

Specific Cycles

The Sandy Moon

During winter, darkness lasts up to 16 musa in the Rilsu calendar.

The Watery Planet

The longest nights last up to 15 hurunané in the Nimýric system, respectively the same number of vuzude in the Pereqaian one.

Further Reading