www.astrocafe.hk

Date 4 Dec 2011
Time 2am
Telescope: Microtech R200
Focal Ratio: F4
Camera: 300D
ISO:800
Location: Shui Hau Observatory http://shuihau.hkas.org.hk
Mount: HEQ5
Guiding: SG4
Filter: CSL
Stacked by DSS

Any photgraphic details? exposure time, no. of frames etc. It seems that there is color noise, any dark frames applied? What is the focusing method?