On december 27th around 8:15 pm. i saw a star size shaped white light moving across the night sky from the southwest to the northeast. i thought it was a satellite until it started increasing in brightness and changing to a reddish color and about the size of venus in light intensity. then it began to decrease in size and change back to white in color until it completely disappeared. i continued to track where i thought it would be for about 10 seconds and it then reappeared again as a small white light continuing to move in a northeast direction. this is the third time in the past two years that i have seen this same phenomenon in the night sky. i've seen many satellites, small planes and airliners flying in the night sky but nothing ever like this.