Low flying orb-like lights (approximately 7 ) move slowly and silently across sky from east to west.

While looking at the stars towards the north from my backyard at around 11 pm, I had a strange feeling that I was going to see something.  About 5-10 seconds later, 7 white orb-like lights came sweeping across the sky from the east.  The lights did not seem to be in any sort of formation, but were grouped closely toghether.  At first I thought the lights were all part of one craft, but I'm almost positive that a couple of the lights moved independently of each other.  The lights moved in a westerly direction above Tallahassee Memorial Hospital, but were not helicopters.  The lights made absolutely no sound and had no other visible navigational lights.  I called loudly to my wife to come outside, but she was in the shower and did not hear me.  The lights disappeared from my view is less than a minutes after being obscured by the tree line.
Witness indicates that the date of the event is approximate.  PD