Seen in WNW sky in Sacramento, CA at approx. 8:42 PM. Mar 3, 2012.Appeared as spot of moving blue light with very occasional red, Wife said she saw white. Seemed to stay is fairly small area. Would fade in and out somewhat. View from Dealynn St. just below Hurley in general direction of Metro Airport. No sound, fairly low in sky. Helicopter (s) seen later in evening not show same color light. Showed red, white, and traffic light green with sound (apparently closer)