Eye in the Sky
On Tuesday December 17th , the Moon will be Full, nothing new there it happens every month, but each Full Moon has its own name. In December it is the Before Yule Moon.
The feast of Yule occurs on December 21st when we reach the winter solstice when the Sun is at its lowest point in the sky. This is "Sol Invictus" "The Undefeated Sun". In medieval times people had to wait until the December Full Moon occurs, this year it is on the 17th and between then and the 21st they had to go into the forest chop down a tree and obtain the Yule Log. This would then be burnt during the festive season.