4 red lights that can not be explained!

My home is located about 2 miles above the city up on the east bench of the Wasatch front mountains.  After picking up some dinner I was returning home with my girlfriend to my home when coming up the hill I noticed 4 distinct red lights in a unique formation not too far above the top of the mountain.  They looked like a red/orange light.  It caught my attention because I am in to astronomy and look at the night sky very often and having lived in that same home for over 17 years I have never seen any lights like this before.  As I pointed out the lights to my girlfriend I called my brother who was waiting for me at the house.  I told him to go outside and look at the lights.  As we are pulling into my drive way I noticed that the lights had dimmed and could only see one.  My brother was in the drive way when I parked in the garage and started yelling at me to get back out here.  I got back out and 1 bright red light had just become visible and it was rising ! in altitude!  As it was rising very slowly it reached a certain point in the sky and stopped and then starting to fade away in distance!   My brothers friend also witnessed this whole thing and having all of us lived in this area for at last 15 years and never have seen anything like this before!  this was truly an amazing sight to see.
Witness indicates that the date of the sighting is approximate.  PD