Ptolemy Cluster - Messier 7

The image was taken in XII EBA (Brazilian Astrophotography Meeting) in 2019 with the following setup:

 

*Telescope: refractor Orion ED80 (600mm focal length);

*Mount: SkyWatcher HEQ5 Pro;

*Camera: QHY163M

*Filters: LRGB Optolong;

*Local: Padre Bernardo/GO/Brazil

 

Imaging parameters:

*105 frames with 60 seconds (Luminance filter);

*36 frames with 180 seconds (Red filter);

*34 frames with 180 seconds (Green filter);

*35 frames with 180 seconds (Blue filter).

TOTAL: 3.5 hours

Done