Plenty of Celestial events for Christmas !
Mars behind the Moon and at opposition....And 2 comets in ths sky (not too far from each other): Holmes 17P and Tuttle 8P!
Comets
Tonight, Tuttle will be between Shedar and Gamma Cassiopeia in Cassiopeia...We might even get a meteor shower from it (Ursids) tonight! Provided the sky clears (unlike the 2 last nights).