See Also: Messier(dictionary)
Messier catalog(encyclopedia)

Messier (iou)



Messier noun. M19.
[Charles Messier (1730-1817), French astronomer.]
Astronomy. Used attrib. to designate a catalogue of 109 non-stellar objects visible in the northern sky, first published in 1774, and (usu. with an identifying numeral) objects listed in the catalogue.
Listener The Great Nebula (Messier 31).