Boomerang shaped black body, green lights motionless and silent. Vanished after I came closer to it.

While walking home at night the sky was very clear due to the cold weather.  The night sky was inky purple.  I observed a boomerang shaped object the perimeter of which was dotted with green lights.  My hometown was very small and quiet.  I heard no noise whatsoever.  I continued to observe the object and found myself actually running towards it to get a better look.  
Once I was out from underneath the street light I was in a position to see it better I held my breath so the water vapor would not obstruct my view.  The object remained totally motionless.  I estimate it was 500 to 1,000 feet from the ground.  I watched it for about a minute and the green "marker" lights on the outer edges went out starting with the "lead" light than the #1 port side, #2, #3 etc... until the last light on the starboard site turned off and the object was gone.  
This was the one and only "unexplainable" thing I've seen first hand.
Source of report indicates that the date of the incident is approximate.  PD