There were 10-20 Star-like figures gliding across the sky in unison.

As I was going for my evening walk, I looked up in the sky and initially I thought I saw stars but I noticed that these star-like figures were moving in the sky.  They moved all at once in almost a perfectly straight line.  The line was diagonal had a downward slope if you look from left to right.  There was somewhere between 10 and 20 of these star-like figures and they all were moving in the same direction, at the same speed, and at the same pace.  The sky was dark and these figures glided across the sky and within no more than 1-2 minutes, the figures were completely out of my sight.