Discovering The Universe

- Messier Open Clusters

M 6 Butterfly Cluster M 7 Ptolemy Cluster M 11 Wild Duck Galaxy M 18
M 21 M 23 M 24 Small Sagittarius Star Cloud M 25
M 26 M 29 Cooling Tower M 34 M 35
M 36 M 37 M 38 M 39
M 40 Winnecke 4 M 41 M 44 Beehive Cluster M 45 The Pleiades
M 46 M 47 M 48 M 50
M 52 M 67 M 73 M 93
M 103