The fine Open Cluster, M 7 or NGC 6475 in the constellation of Scorpius. This cluster is some 80.00" arc minutes in size and shines at a magnitude of 3.30. It is also known as Collinder 354, Melotte 183, Raab 125 and OCL 1028.
Takahashi Sky 90 fitted with a Takahashi Reducer/Flattener operating at f/4.5, taken in the light of Hydrogen Alpha (Ha).