* Stars don't change positions dramatically: Stars are incredibly far away, so their apparent position in the sky changes very slowly over time.
* Planets move: Planets are closer to us and orbit the Sun. Their positions in the sky change noticeably over time.
* The Moon's phase changes: The Moon's appearance changes dramatically from night to night due to its phases.
To identify the object you saw, I need more information:
* Date and Time: December 2008 is very general. What specific date and time did you see this object?
* Location: Where were you in the world? Your location affects what you see in the sky.
* Description: Was the object bright, twinkling, or had a distinct color? Was it a point of light or did it have a noticeable size or shape?
Once you provide more details, I can help you identify the object you saw.
