Capricorn season is unique in that it straddles the fence between the calendar years. Capricorns are known for their ability to set and attain goals, and do the work necessary to get where they want to go.
Capricorn season begins on the Winter Solstice. It’s the sign that straddles the new calendar year and is naturally associated with “taking stock”. Capricorn is all about getting to the top of the mountain, which means assessing where you're currently at.