A full moon is the lunar phase when the Moon appears fully illuminated from Earth's perspective. This occurs when the Moon is in opposition to the Sun, with the Earth positioned between the two celestial bodies. The term "full moon" is derived from the Old English phrase "fulla mona," which translates to "full moon" in modern English. In Hebrew, it is known as ירח מלא ( Yareach Mela ). In other languages, it is referred to as Lune pleine in French, Vollmond in German, and Luna llena in Spanish. Culturally and astronomically significant, the full moon has been a subject of fascination and has influenced various aspects of human life, including calendars, agriculture, and mythology. The exact timing and appearance of a full moon can vary slightly due to the Moon's elliptical orbit and the Earth's axial tilt.