I have been seeing a bright light for years in the same area of sky, it is brighter than a plane slower than a plane it lasts about 10 mins. it seems to be about 30 miles away it looks to fly from the N.E. to S.W. I have looked on a map and there is no air port I have called the Cody, WY air port to ask if a plane has just took off they said no they said they have no tower so at night its a fly in at your own risk. I have talked to others that have seen this they all say its not a plane, I took a video of this it moves to slow for a plane and to fast for a planet it gets very bright then dim I would very much like to know what this is but I do not know were to send the video can anyone help me with this??