NGC 6888: Crescent nebula in Cygnus
NGC 6888, the Crescent nebula, is an expanding shell of gas being driven by a Wolf Rayet star.
Click image for larger version (1260x1087, 770kb). This was the second time I have used this target prior to Okie-Tex Star Party. Compared to last years photograph this image is deeper, with better seeing and better post processing.
| Photograph Information | |
|---|---|
| Date | 08.23.2006 |
| Location | Flint Hills of Kansas |
| Telescope | AP130 @ f6 w/field flattner |
| Camera | Canon 350D, Hutech modified type I |
| Exposure | Stack of 18, 7 minute exposures at ISO 800 |
| Notes | 60#176;F, 81%rh, good transparancy but ground fog developed. Initial RAW conversion, registration and stacking in IRIS. Noise reduction in PixInsight LE 1.02 Additional adjustments in Photoshop CS2 |
