String of "stars" travelling East at 0605 in Prescott, AZ.

At 0605 local time in Prescott, Arizona I was driving to work on Willow Lake road when I noticed what looked like a normal star constellation, but it was in a straight line (not exactly straight) and consisted of many “stars”.  I am familiar with the night sky and was struck by a new, large constellation.  I stopped for a better look and saw what appeared to be over 20 points of light that were the similar size/shape of the star Vega (I just picked a star, no other significance) that were travelling West to East in unison.  They were not in an exact straight line but looked more like a long string of lights being towed behind an aircraft.
 There was no sound that I could hear, and the lights were steady, not blinking.  They were somewhat randomly spaced so did not look like a coordinated formation, except that they were all traveling the same speed and direction (same velocity) and never changed their spacing relative to each other, which is why I mentioned them being towed.  Their speed and path were constant as long as I could observe them.  They were lost at the Eastern horizon where they went out of sight naturally.