| 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. |