[glenc (Glen)]

Charles Messier made his famous catalog of 110 deep sky objects (DSO) from Paris in France. Most of these DSO were discovered by other observers but Messier found 41 objects himself between 1762 and 1781.
Unfortunately Messier’s catalog is not complete. The most southerly object is the cluster M7 with declination -34d 48m. The rich sky south of that was not visible from Paris and hence is missing from his catalog.
He also missed many objects north of declination -34d including: the open clusters (OC) NGC 869-884 and NGC 6633, the globular clusters (GC) NGC 6401 and NGC 6544, the nebulae (Neb) NGCs 281, 2174, 2237, 6992 and 7000, the planetary nebulae (PN) NGCs 1360, 2392, 3242 and 7293 and the galaxies (Gxy) NGCs 253, 2403, 2903, 3115, 3521 and 6946.
Messier’s 8” speculum mirror telescope was roughly equivalent to a modern 6” Newtonian telescope. If Messier had searched the whole sky carefully with a modern 6” Newtonian telescope he would have seen about 365 objects including the 110 in his own catalog.

The attached file contains an ALL SKY MESSIER CATALOG.