Astronomy Adventure – Messier 7, the Ptolemy Cluster
Messier 7 is also known as the Ptolemy cluster because it was described by the 2nd century astronomer Ptolemy who also may have seen its nearby neighbor Messier 6, another naked eye open cluster.
Scope: Starblast 4.5; tracking on
Magnification: ~30x
Camera: iPhone6 using NightCap Pro; ISO 8000;