How to find Ptolemy’s Cluster (M7) using Scorpius

This guide starts with a large pattern that is easy to recognize without a telescope. Use Scorpius as the main sky landmark.

Follow the route from one recognizable star to the next until you reach Ptolemy’s Cluster (M7).

Ptolemy’s Cluster (M7) is 29° above the horizon toward the southwest.

Begin with Scorpius, then follow the reference stars toward Ptolemy’s Cluster (M7).

Scorpius

Recognize the characteristic star pattern of Scorpius before following the route.

Identify Shaula in or near Scorpius; the chart shows its position relative to the guide.

From Shaula, move about 4.7° toward the northeast until you reach Ptolemy’s Cluster (M7). This is the target field.