NGC6946 - Spiral Galaxy in Cepheus
Date Taken: 9/5/2010
Scope: Astro-Atech 8" RC w. At2FF Flattener (f/8, 1624mm)
Camera: QSI 583wsg with Astrodon Tru-Balance E-Series Gen2 filters
Temp: -15C
Mount: Losmandy G-11 Gemini
Guiding: Lodestar, off-axis
Exposure: LRGB 150:75:75:55 (L) 15x10m, binned 1x1. RGB each 15x5m, binned 2x2, except blue which was only 11 frames.
20 flats, 20 darks, 20 bias
Calibration, Stacking, and initial DDP Stretch with Maxim DL; Final processing with CS4.
First galaxy shot with the QSI583wsg. I lost 4 blue frames in the middle due to a tracking problem.