Open Cluster M39
Description here
Photo Details
Telescope: FSQ106EDX (530 mm) Takahashi
Camera: ST-8300M, Sbig Filter wheel, Baader 36mm round HLRGB filters
Mount: NJP Takahashi
Guiding: Orion ST80 with Orion SS Autoguider
Exposure: HRGB 10h Ha 14x1200sek, R 6x300sec, G 6x300sec, B 6x300sec
When: July - August 2012
Other information: very good transparency, very good seeing, taken in the city of Tarnow