Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  LBN 203  ·  NGC 6888  ·  Sh2-105
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A Golden Crescent - NGC 6888, 



    
        

            Shannon Foye
Powered byPixInsight

A Golden Crescent - NGC 6888

Getting plate-solving status, please wait...
A Golden Crescent - NGC 6888, 



    
        

            Shannon Foye
Powered byPixInsight

A Golden Crescent - NGC 6888

Acquisition details

Dates:
May 27, 2022 ·  May 28, 2022 ·  June 5, 2022 ·  June 6, 2022 ·  July 8, 2022 ·  July 9, 2022 ·  July 10, 2022 ·  July 13, 2022 ·  July 14, 2022 ·  July 15, 2022 ·  July 16, 2022 ·  July 17, 2022 ·  July 18, 2022 ·  July 19, 2022 ·  July 20, 2022
Frames:
Chroma Blue 36 mm: 85×30(42′ 30″) (gain: 0.00) -2°C
Chroma Green 36 mm: 90×30(45′) (gain: 0.00) -2°C
Chroma H-alpha 3nm Bandpass 36 mm: 307×300(25h 35′) (gain: 56.00) -2°C
Chroma OIII 3nm Bandpass 36 mm: 293×300(24h 25′) (gain: 56.00) -2°C
Chroma Red 36 mm: 87×30(43′ 30″) (gain: 0.00) -2°C
Integration:
52h 11′
Darks:
50
Flats:
30
Avg. Moon age:
16.19 days
Avg. Moon phase:
63.62%
Bortle Dark-Sky Scale:
9.00
Mean SQM:
17.40

RA center: 20h12m13s.476

DEC center: +38°1952.44

Pixel scale: 0.781 arcsec/pixel

Orientation: -0.128 degrees

Field radius: 0.327 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 2414x1808

File size: 2.0 MB

Locations: Home, Houston, TX, United States

Data source: Backyard

Description

Ha/Oiii dynamic narrowband combination with RGB stars.

I used the dynamic Ha/Oiii PixelMath combination found at https://thecoldestnights.com/2020/06/pixinsight-dynamic-narrowband-combinations-with-pixelmath/.

RGB star color was added to the narrowband image with the method described here: https://www.astrobin.com/forum/c/astrophotography/deep-sky-processing-techniques/an-excellent-method-of-blending-rgb-stars-with-a-narrowband-image/.

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A Golden Crescent - NGC 6888, 



    
        

            Shannon Foye