nal tally of objects amounts to 110 and is the catalog we recognize today. For more about Messier and the objects in his catalog, I suggest reading <I>Messier's Nebulae & Star Clusters</I> by Kenneth Glyn Jones (Cambridge University Press, New York, second edition, 1991).<br><br>Working your way through Messier's list will introduce you to some of the brightest deep-sky objects in the sky. You'll also learn about several types of deep-sky objects: star clusters, nebulae, and galaxies. <br><br>If you've seen