Hemisphere:  Northern  ·  Contains:  52 Cyg  ·  Filamentary nebula  ·  Lace-work nebula  ·  NGC 6960  ·  NGC6960  ·  The star 52Cyg  ·  Veil nebula
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NGC6990 - The Witch's Broom Nebula - HOO, 



    
        

            Jean-Baptiste Auroux
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NGC6990 - The Witch's Broom Nebula - HOO

Imaging telescopes or lenses: Takahashi TSA 102

Imaging cameras: Atik ONE 6.0

Mounts: Skywatcher AZ EQ6 GT

Guiding telescopes or lenses: Takahashi TSA 102

Guiding cameras: Atik GP

Focal reducers: Takahashi TOA-RD

Software: Pleiades Astrophoto PixInsight 1.8 Ripley  ·  PHD Guiding 2  ·  Atik Artemis

Filters: Astronomik Ha 6nm  ·  Astronomik OIII 6nm

Accessory: Atik OAG


Dates:June 23, 2018Aug. 21, 2018Aug. 22, 2018

Frames:
Astronomik Ha 6nm: 21x600" -10C bin 1x1
Astronomik OIII 6nm: 18x600" -10C bin 1x1

Integration: 6.5 hours

Darks: ~64

Flats: ~16

Flat darks: ~49

Bias: ~101

Avg. Moon age: 10.63 days

Avg. Moon phase: 81.71%

Bortle Dark-Sky Scale: 3.50


Astrometry.net job: 2827476

RA center: 20h 46' 17"

DEC center: +30° 37' 40"

Pixel scale: 1.528 arcsec/pixel

Orientation: 138.562 degrees

Field radius: 0.743 degrees


Resolution: 2736x2186

Locations: Fouras, Fouras, Charente-Maritime, France; Truyes, Truyes, Indre et Loire, France

Data source: Backyard

Description

HOO version.
SHO version is here.

Comments

Author

Jean-Baptiste_Paris
Jean-Baptiste Auroux
License: None (All rights reserved)
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Revisions

  • NGC6990 - The Witch's Broom Nebula - HOO, 



    
        

            Jean-Baptiste Auroux
    Original
  • NGC6990 - The Witch's Broom Nebula - HOO, 



    
        

            Jean-Baptiste Auroux
    B
  • Final
    NGC6990 - The Witch's Broom Nebula - HOO, 



    
        

            Jean-Baptiste Auroux
    C

B

Description: Slight correction of colors

C

Description: Revised version with different (and more classical) colors.

Sky plot

Sky plot

Histogram

NGC6990 - The Witch's Broom Nebula - HOO, 



    
        

            Jean-Baptiste Auroux