Bright object flashing white, gold, green and red lights seen over Helena, MT.Object was very bright flashing white, gold, green and red lights. Sometimes it seemed like the the object was spinning because the lights would rotate and flash. It was a clear night and object was brighter than stars in the sky. Slow moving east to west high over valley north of the city. Object moved erratically: bobbed up/down, back and forth. I observed the object with binoculars. There were stars out but they were very dim. This object was bright and flashing. Twice it seemed like there were aircraft circling the object since it was getting near the Helena Regional Airport. Since this observation I have seen it two more nights 9/30 and 10/1. On 10/1, I contacted a friend north of town in the valley and she independently observed the object. Since there were clouds, the object seemed to be obscured and observation time was only 30-40 minutes.