Bright white light hovering in sky. Hooked around and jetted away.

I was traveling on the interstate heading west late at night around 1 on a clear night when I noticed a bright white light hovering in the sky it sat there for about 5 seconds , then it dropped down and hooked around to the north , and all of a sudden just took off , slow enough where I can still see the light leaving but fast enough to where the light dissapeared in under three seconds.  During the durration of contact I never heard any noise emiting from the object.