Date: July 27, 2008
Location: Victoria Centre Observatory

The wide field-of-view and the fast and sharp optics my new Borg f/4 Astrograph makes it possible to gather photons from the huge but faint Sh2-157 nebula vislble near the top right corner of this photo. I'm told that BN 536 (Lynd's Bright Nebulae) is the faint nebula surrounding Sh2-157.

The colour and context of NGC7635 the Bubble Nebula near the tightly knit open cluster M52 makes for a very interesting field of view. NGC7538 is visible near toe top edge of the photo, and makes a lovely smaller cousin to the Bubble Nebula

Details:
Optics: Hutech modified Canon XTi mounted prime focus on a Borg 101ED f/4 Astrograph, HEQ5 Pro EQ mount
Exposures: 51 images at 1 minute, ISO 800

Processing:
ImagesPlus 3.5: digital development of Canon Raw to FITS; dark & flat frames applied; auto grading & Star alignment; Adaptive addition (2.40) used for stacking; moderate Digital Development (BP 1600, BG 43, Range 1.15); subtle star size reduction; saved as a 48 bit TIF.
ACDSee Pro 2: Crop top edge and resize; convert 48 bit to 24 bit RGB; save to jpg.