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Contains:  NGC 7822
Getting plate-solving status, please wait...

Sh2-171 - NGC 7822

Technical card

Resolution: 2863x2299

Dates:Sept. 3, 2018Sept. 7, 2018Sept. 10, 2018

Astrodon Ha 1.25 5nm: 147x300" (gain: 200.00) -15C bin 1x1
Astrodon OIII 1.25 3nm: 113x300" (gain: 200.00) -15C bin 1x1
Astrodon SII 1.25 3nm: 88x300" (gain: 200.00) -15C bin 1x1

Integration: 29.0 hours

Avg. Moon age: 16.79 days

Avg. Moon phase: 17.95%

Bortle Dark-Sky Scale: 7.00 job: 2665814

RA center: 0.853 degrees

DEC center: 67.135 degrees

Pixel scale: 1.678 arcsec/pixel

Orientation: 0.008 degrees

Field radius: 0.856 degrees

Locations: Home, San Jose, California, United States

Data source: Backyard


This object is one dusty beast. Had some difficulties bringing out the fine details without making the image look too "dirty". Hope the result is decent enough.

"Natural" version



Alan Pham

Sky plot

Sky plot


Sh2-171 - NGC 7822, 


            Alan Pham