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Contains:  Extremely wide field
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            Joe Shuster
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Technical card

Dates:July 31, 2019

Frames: 53x120"

Integration: 1.8 hours

Avg. Moon age: 28.81 days

Avg. Moon phase: 0.58%

Basic astrometry details job: 3209363

RA center: 20h 8' 48"

DEC center: +36° 59' 45"

Pixel scale: 19.304 arcsec/pixel

Orientation: 0.534 degrees

Field radius: 30.901 degrees

Resolution: 7200x9000

Locations: Blazing Star Observatory, Salem, MO, United States

Data source: Backyard


On July 30, 2019, I captured four wide-field images of areas of Cygnus using my ZWO ASI071MC-cooled camera. I used a Nikkor AI-S f/1.4 lens on the camera at f/4. The mount was a Losmandy G-11 with Gemini 1. I used the four images as panels in a mosaic.

The panels were centered on the stars Deneb, Sadr, Eta Cygni, and Albireo. The gain setting was 260. I scheduled each sequence for 15 120-second exposures. The Deneb and Eta Cygni sequences only provided 11 and 12 useful subframes.

Darks were applied and the individual sequences were processed through DeepSkyStacker. The panels were assembled using Microsoft ICE. Post-processing was with Paintshop Pro X8.



Joe Shuster
License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot




            Joe Shuster