Instrument

Takahashi FSQ-106ED @ f/5.0 (530 mm F.L.)  Captured at 3.5 arcsec/pixel.  Shown resampled to 15.9 arcsec/pixel.

Mount

Paramount ME

Camera

SBIG STL-11000 w/ internal filter wheel, AstroDon Filters

Acquisition Data

9/4/2008 to 10/1/2008 Chino Valley... with CCDAutoPilot3

Exposure

Hα  270 min. (18 x 15 min. bin 1x1)

Software

CCDSoft, CCDStack, Photoshop CS w/ the Fits Liberator plugin and Noel Carboni's actions.

CCDStack to calibrate, register, normalize, data reject & combine.

PhotoShop for non-linear stretching.

Comment

North is to the right.

NGC 7822 aka SH2-171 is an irregular emission nebula in the constellation Cepheus. The region is mostly hydrogen, which was captured with the Hα filter.