Here is a list of astronomical events for given month. Location dependent events listed here are visible from central Europe.
11 – New Moon.
14 – The Geminids meteor shower peak with a ZHR of around 120. Favourable conditions with the Moon (illuminated less than 10%) bellow the horizon.
22 – The December southward solstice occurs at 4:48 UT.
23 – The Ursid meteor shower peaks at 2:30 UT with a ZHR variable from 10-50 favouring Europe and the Middle East.
23 – The Moon occults Aldebaran for Europe and central Asia at ~19:32 UT. Additional informations.
25 – Full Moon.
29 – Mercury reaches greatest evening elongation at 19.7° east of the Sun at 00:01 UT.