There are two full moons this month.

One occurs tomorrow – December 2, 2009 –  and the other will be here on the 31st (which means it will also be considered a Blue Moon).

This first full moon of  December  is often called the Full Cold Moon or the Full Long Nights Moon by Native American tribes. Since this is a month where there is little plant activity (which is the basis of many Native American and colonists names for the full moons), this moon is connected with the onset of hard winter and with the longest and darkest nights.

The colonists also called this The Moon Before Yule.

Later this month, when the midwinter night – the solstice that is literally the longest night –  comes, it is long because the Moon is above the horizon for a long time. The midwinter full Moon has a high trajectory across the sky because it is opposite a low Sun.