How do I safely mark up my Sky Atlas 2000?

Edward Smith wrote:
But, back to my point. At first I had thought that I wanted to draw
the constellations into my Star Atlas 2000 (I have the deluxe
laminated version (black on white)).. I now think that I'm going to
hold off on that for a bit, but I am wondering what would be a good
marker to temporarily write on the maps with (something that will
wash/rub off). Things like comets that I might want to mark on the
map for a few nights but then get rid of.

I know I could just experiment, and I probably will with any ideas you
give me, but I thought I'd ask if you have any suggestions/experience.

Dry erase markers seem to work just fine. They do rub off pretty
easily, though.

I like regular paper atlases. All unmarked atlases are pretty much
identical, but the markings I've made on my atlases identify them as
my own.

Brian Tung
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