Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888
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Crescent Nebula (NGC6888) updated stars processing and different taste, 



    
        

            Jian Yuan Peng
Crescent Nebula (NGC6888) updated stars processing and different taste
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Crescent Nebula (NGC6888) updated stars processing and different taste

Getting plate-solving status, please wait...
Crescent Nebula (NGC6888) updated stars processing and different taste, 



    
        

            Jian Yuan Peng
Crescent Nebula (NGC6888) updated stars processing and different taste
Powered byPixInsight

Crescent Nebula (NGC6888) updated stars processing and different taste

Technical card

Imaging telescopes or lenses: TEC 160FL

Imaging cameras: ZWO ASI6200MC Pro ASI6200MC Pro

Mounts: Astro-Physics Mach 2 GTO

Guiding cameras: ZWO ASI290MM Guide Camera

Focal reducers: Tec frc 0.9x Tec frc

Software: SePHD2, Pixinsight, Lightroom, Sequence Generator Pro, Photoshop Sequence Generator Pro, PHD2, Pixinsight, Lightroom, Photoshop

Filters: STC Astro Dual-Narrowband filter STC Dual

Accessory: ZWO Off-Axis Guider


Dates:June 10, 2020

Frames: 97x600" (16h 10')

Integration: 16h 10'

Avg. Moon age: 19.60 days

Avg. Moon phase: 75.83%


Basic astrometry details

Astrometry.net job: 3631735

RA center: 20h 11' 19"

DEC center: +38° 25' 4"

Pixel scale: 1.358 arcsec/pixel

Orientation: 0.103 degrees

Field radius: 1.109 degrees


Resolution: 4800x3394

Locations: CourtYard, Palo Alto, CA, United States

Data source: Backyard

Description

Post-process this image used the Adam Block's star de-emphasis method to reduce the stars.

Also, I made a little change to make the whole starfield dark to emphasize the main object for my taste.

Acquired this target from June 2 to June 9, 2020, at Bortle scale 7 location. The narrowband filter did help a lot to reduce light pollution. This was my first time mounted TEC 160FL on A-P Mach2GTO without modeling. In order to take advantage of the optical of the telescope, I decided to use a full-frame color camera - ASI6200MC pro. Used bin2 did help to reduce the exposure time and retain the contrast and high signal to noise ratio.

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Crescent Nebula (NGC6888) updated stars processing and different taste, 



    
        

            Jian Yuan Peng