M81 and M82

Another reprocess.  M81, also known as Bode's Galaxy, and M82.

Camera: QHY8

Mount: Celestron CGEM

Scope: Celestron 800 8" SCT with Hyperstar

Filter: None

Effective Focal Length: 400mm

Effective Focal Ratio: f/2.0

Exposure: 8 x 8min OSC

Total Exposure: 1hrs, 20min

Date: 6/13/2010 12:10 AM CDT (start)

Location: Owasso, OK, USA

Acquisition: CCD Commander/Maxim DL Platesolve

Focus: Robofocus

Dithering: None

Guiding: ST-80, SSAG, CCD Commander, Maxim DL

 

Processing:  Calibration & Stacking in Maxim DL, Background and wavelets in PixInsight, 

Curves, noise, and sharpening in Photoshop.