I suppose you might have already thought of it (or done it) but may I suggest getting a telescope and trying to find interesting celestial objects. With the amount of information available to us nowadays, you should be able to find many interesting objects.

The first time I got to try using a telescope (the day a friend bought one), the very first object I saw was Saturn and seeing the rings with my own eyes was a very different experience than knowing they exist or having seen picture of them.