Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888
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NGC 6888 (Crescent Nebula) & Soap Bubble (PN G75.5+1.7), 



    
        

            Mike Oates
NGC 6888 (Crescent Nebula) & Soap Bubble (PN G75.5+1.7)
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NGC 6888 (Crescent Nebula) & Soap Bubble (PN G75.5+1.7)

Getting plate-solving status, please wait...
NGC 6888 (Crescent Nebula) & Soap Bubble (PN G75.5+1.7), 



    
        

            Mike Oates
NGC 6888 (Crescent Nebula) & Soap Bubble (PN G75.5+1.7)
Powered byPixInsight

NGC 6888 (Crescent Nebula) & Soap Bubble (PN G75.5+1.7)

Equipment

Imaging Telescopes Or Lenses
Takahashi FSQ-106 ED
Imaging Cameras
Starlight Xpress SX-814 Trius Monochrome CCD
Filters
Astrodon 3nm OIII · Astrodon 3nm SII · Red · Green · Blue · Ha 3nm
Accessories
Lakeside Astro Motor Focus System · Starlight Xpress SX 'Maxi wheel' · Starlight Instruments FTF3545B-A Focuser
Software
Sequence Generator Pro · PIXINSIGHT 1.8 · Photoshop CS6
Guiding Cameras
Starlight-XPress Lodestar Autoguider

Acquisition details

Dates:
May 21, 2019
Frames:
Astrodon 3nm OIII: 15x600" (2h 30') bin 2x2
Astrodon 3nm OIII: 8x120" (16') bin 4x4
Astrodon 3nm OIII: 6x180" (18') bin 4x4
Astrodon 3nm OIII: 1x300" (5') bin 4x4
Astrodon 3nm SII: 14x600" (2h 20') bin 2x2
Astrodon 3nm SII: 8x120" (16') bin 4x4
Astrodon 3nm SII: 1x300" (5') bin 4x4
Astrodon 3nm SII: 6x360" (36') bin 4x4
Blue: 4x60" (4') bin 1x1
Blue: 17x30" (8' 30") bin 2x2
Green: 5x60" (5') bin 1x1
Green: 18x30" (9') bin 2x2
Ha 3nm: 15x600" (2h 30') bin 2x2
Ha 3nm: 8x120" (16') bin 4x4
Ha 3nm: 7x300" (35') bin 4x4
Red: 5x60" (5') bin 1x1
Red: 18x30" (9') bin 2x2
Integration:
10h 27' 30"
Avg. Moon age:
17.39 days
Avg. Moon phase:
92.40%
Bortle Dark-Sky Scale:
8.00
Mean SQM:
18.50

Basic astrometry details

Astrometry.net job: 2721298

RA center: 20h13m53s.0

DEC center: +38°0852

Pixel scale: 1.942 arcsec/pixel

Orientation: 359.747 degrees

Field radius: 0.880 degrees

Resolution: 2478x2122

Locations: The Hills Observatory, Manchester, United Kingdom

Data source: Backyard

Description

Not a high resolution image as I chose to take this at bin 4x4 and 2x2 to speed up the image acquisition and I really wanted to get the Soap Bubble Nebula and with the shorter lighter nights approaching I did not want to let this one run till next year.

Narrowband images taken as bins 4x4 and 2x2 and stars taken at bin 2x2 and a few at 1x1. Narrowband data processed after star removal with Starnet++ and RGB stars added back.

Starnet++ removed all the stars and I did not need to do any manual touching up, a fantastic program.

Imaged over 6 nights May 11-21 2019

Comments

Sky plot

Sky plot

Histogram

NGC 6888 (Crescent Nebula) & Soap Bubble (PN G75.5+1.7), 



    
        

            Mike Oates

In these public groups

Broadband under Bortle 7/8/9