What does full moon mean?
A full moon means that the Earth is between the Moon and the Sun and that the Moon’s vicinity is completely illuminated.
The moon doesn’t change shape and doesn’t produce any light – how we see it is because of the brightness from the Sun reflected on it.
And Earth sky writes: “A full moon lies opposite the sun in its orbit around the Earth.
“Its light side is completely visible from Earth. The moon appears fully before our eyes for two to three nights.
“However, astronomers consider the moon to be a full moon at a precisely defined time, when the moon lies exactly 180 degrees opposite the sun by ecliptic longitude.
“It’s the feature of the full moon – the fact that it faces the sun when viewed from Earth – that makes the full moon look full and round.”
https://www.the-sun.com/tech/4690479/full-moon-february-2022-snow-uk-when-calendar/ Full Moon February 2022 – Incredible Snow Moon Visible in UK Sky THIS WEEK; what time and how to watch it