Venus and Saturn will be in conjunction this weekend, appearing side by side in the night sky during January's post-sunset "planet parade."

“Saturday evening, January 18: Venus and Saturn will appear nearest to each other. As evening twilight ends at 6:15 p.m. EST, Venus will be 30 degrees above the southwestern horizon with Saturn 2.2 degrees to the lower left. Saturn will set first on the western horizon almost 3 hours later at 9:04 p.m.”

There are six planets in the night sky all week, four of them visible to the naked eye and two of them getting very close indeed. Here's how to watch.