Instrument

12.5" RCOS @ ~ f/9 (2880 mm fl) at 0.64 arcsec/pixel. Shown at  0.64 and 0.85 arcsec/pixel.

Mount

Paramount ME

Camera

SBIG STL-11000 w/ FW8 filter wheel & AstroDon Gen-2 LRGB filters.

Acquisition Data

7/3/2016 to 7/9/2016 Chino Valley, AZ.  with CCD Commander & CCDSoft.  AOL guided

Exposure

eXcalibrator RGB ratios are 1.00, 1.09 & 1.24

Software & Processing Notes

• CCDSoft, CCDStack, PixInsight, Photoshop CS6.

• eXcalibrator v6.1 for (g:r),(b:r) color balancing, using 175 stars from the Pan-STARRS database.

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

• CCDStack to calibrate the sub exposures.

• PixInsight to register, data  reject, mean combine the sub exposures and create the LRGB image. Also for gradient removal, non-linear stretching with HistogramTransformation, color saturation and increased galaxy core detail with HDRMultiscaleTransform.

• PhotoShop layers for selectivly adding the enhanced galaxy core data, selective sharpening, and background noise reduction. 

• Noiseware 5, a PhotoShop plug-in.

Comment

Shown rotated 70° clock-wise.

UGC 10310 (Arp 2) is an SB dwarf galaxy of the Magellanic class in the constellation of Hercules. The low surface brightness spiral galaxy is at a distance of about 33 million light-years.