|Date:||21 August 2009|
|Location:||My back garden in suburban London|
|Exposure:||12 * 10min at ISO 100|
|Telescope:||Celestron C11 with F6.3 reducer on Skywatcher EQ6 mount.|
|Camera:||Modified Canon EOS 350D|
|Guiding:||Celestron SLT 130 with unmodified SPC900 webcam|
|Filters:||Astronomik CLS filter|
|Processing:||Stacked in IRIS, 4x4 binned and asinh range adjustment applied.|
|Comments:|| Another attempt at the Horsehead Nebula.
This time using my old Celestron SLT 130 as a guidescope with a SPC900 webcam.
Also, this is my first photo using an Astronomik CLS filter. It was impossible to ged rid of the background gradients.