The western portion of the Veil nebula, a supernova remnant. The eastern portion of the nebula is NGC 6992/5
Click image for larger photograph (1280x859, 800kb).
|Location||Okie-Tex Star Party, Kenton OK|
|Telescope||AP130 @ f6 w/field flattner|
|Camera||Canon 350D, Hutech modified type I|
|Exposure||Stack of 18, 9 minute exposures at ISO 800|
|Notes||40°F, 37%rh, excellent transparancy|
Initial RAW conversion, registration and stacking in IRIS.
Noise reduction in PixInsight LE 1.02 Additional adjustments in Photoshop CS2
Inexpensive instant cold packs were used during the sequence of exposures and following dark frame acquisition to reduce camera temperature. This worked effectively to reduce noise but is cumbersome to use; both attaching to the camera and maintaining any temperature consistency.