täisava

Täisava, also known as full moon, is a lunar phase that occurs when the Moon is on the opposite side of the Earth from the Sun, and the side of the Moon that is facing Earth is fully illuminated. This phase happens approximately once every 29.5 days, which is the length of the synodic month, the time it takes for the Moon to complete one orbit around the Earth relative to the Sun.

The term "täisava" comes from the Estonian language, where "täis" means "full" and "ava" means "face" or "side." This term is used to describe the phase of the Moon when the entire face of the Moon that is visible from Earth is illuminated by the Sun.

During a täisava, the Moon appears as a bright, round disk in the night sky. The exact timing of the täisava can vary slightly each month due to the elliptical shape of the Moon's orbit and the Earth's orbit around the Sun. The täisava is an important event in many cultures and has been the subject of various myths, legends, and folklore throughout history.