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Contains:  IC 1275, NGC 6559, IC 1274, IC 4685, IC 4684, The star 11Sgr
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NGC 6559

Technical card

Resolution: 2697x2115

Dates:July 7, 2018

Frames: 43x500"

Integration: 6.0 hours

Avg. Moon age: 23.31 days

Avg. Moon phase: 37.78% job: 2162323

RA center: 272.473 degrees

DEC center: -23.832 degrees

Pixel scale: 1.664 arcsec/pixel

Orientation: 2.309 degrees

Field radius: 0.792 degrees

Locations: Paradise, Chiricahua Mountains, AZ, United States

Data source: Backyard


I did this area along with M8 a few years ago and wanted to revisit it at a longer focal length. This image has some Ha blended into the red channel but none in the L as it didn't really add much. I again used Astro Pixel Processor which really speeds up the stacking. I've also quit taking flats as APP is pretty good at removing vignetting. L 22x200s , RGB 12x200s 2x2 binned, Ha 8x500s.



License: Attribution-NonCommercial Creative Commons



minor assorted fixes

Sky plot

Sky plot


NGC 6559,