Instrument

12.5" RCOS @  ~f/9 (2880 mm fl) at 0.64 arcsec / pixel.  Shown at 1.28 and 3.33 arcsec / pixel.

Mount

Paramount ME

Camera

SBIG STL-11000 w/ FW8 filter wheel, AstroDon Gen-II Filters

Acquisition Data

8/8/2013 to 11/8/2013 Chino Valley, AZ... with CCDAutoPilot5 & CCDSoft AOL guided.

Exposure

Lum  660 min. (22 x 30 min. bin 1x1) best of 42

RGB  540 min. (12 x 15 min. bin 2x2, each)

Software & Processing Notes

• CCDSoft, CCDStack, Photoshop CS6, PixInsight and Noel Carboni's actions.

• eXcalibrator v4.2 for (g:r) color balancing, using 45 stars from the SDSS-DR9 database.

• CCDBand-Aid to repair Kodak KAI-11000M vertical bars.

• CCDStack to calibrate, register, normalize, data reject, combine the sub exposures and selective Maximum Entropy deconvolution.

• PixInsight for color gradient removal, to create the RGB image and initial non-linear stretching.

• PhotoShop for the LRGB combine & final touch-up.

• Noiseware 5, a PhotoShop plug-in.

Comment

The galaxy is shown rotated 90 degrees clockwise

NGC 7497 is a spiral galaxy, type SBc, in the constellation Pegasus. At a distance of about 59 million light-years, the galaxy is viewed through the Integrated Flux Nebula (IFN). The residual light of our galaxy illuminates this faint nebula.