The solar eclipse takes place on December 25, 2019, 9:17 p.m. pacific time, at about 10 degrees of Sagittarius. This places it in Moola nakshatra and near the galactic center. Having an eclipse take place so close to the solstice normally stirs things up a bit. It is worth mentioning that 10 degrees of Sagittarius places the eclipse directly on the Ascendant of the USA. Usually the effect of an eclipse will be seen for a month or so before the eclipse happens and up to 6 months after. In this case, it might just be signifying more events related to the impeachment of Trump, which is already in the works, but it is bound to stir things up in the US in various ways
On the personal level, this is a great time to use Moola's shakti, the power of destruction, to get rid of things that aren't working for you. Moola is also a nakshatra related to fearlessness. It motivates us to stand up and face our own fears, as well as to be a calming presence for those who are afraid. Eclipses are primarily good times for introspection, so if you celebrate Christmas, then you might want to make this one a more reflective one. The deity that rules this nakshatra is a warrior goddess, however, so you might also want to avoid animated debates about religion or politics with your relatives during this holiday period.