M13 – Hercules cluster
Observing date: 2013-05-01
Observing site: Ekerö, Sweden
Temperature: +5 °C
Telescope: Meade 12″ LX200GPS SCT
Mount: Meade fork mount
Photographic equipment: Canon EOS 600D -stock
Other optical equipment: F/6,3 focal reducer
Exposure: 107×15+42x30sek, ISO 1600
Other info: –
Processing: Stacked in Deep sky stacker and processed in Photoshop CS6
Photographer(s): Leif Ratzinger & Jakob Sagatowski