2017-04-07 ========== CDK20S at Mt. Kent Rhodes Hart UBVRI filter set Jupiter ======= Region selected to show planet body and satellites Exposure times 0.1 second with some dome blockage to control overexposure Select best frames from 255 images Centered by image stabilization in AIJ Processed with unsharp masking 2 pixel filter Averaged within each filter band Subtracted background to make zero nearly zero (approximately 1200) because there are no bias frames for the region images Processed again with 2 pixel unsharp masking and saved both the average and the second USM masked images for subsequent color process Loaded the R, V, and B images into AIJ and made a color composite image Balanced colors so that brigher areas were yellow-white and saved as png Flipped y-axis to put final color image in NSEW orientation Satellites E to west are Ganymede (III) east of Jupiter Io (I) west of Jupiter Callisto (IV) west and north of Io and west of Jupiter Europa (II) far west