Hemisphere:  Northern  ·  Contains:  NGC 4627  ·  NGC 4631  ·  NGC 4656  ·  NGC 4657  ·  NGC4627  ·  NGC4631  ·  NGC4656  ·  NGC4657
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NGC 4631 ("Whale") & NGC 4656 galaxies, 



    
        

            Jean-Baptiste Auroux
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NGC 4631 ("Whale") & NGC 4656 galaxies

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  ·  Photoshop  ·  PHD Guiding 2  ·  Atik Artemis

Filters: Astronomik B 1.25"  ·  Astronomik G 1.25"  ·  Astronomik R 1.25"  ·  Astronomik L 1.25"

Accessory: Atik OAG


Dates:Feb. 26, 2019Feb. 27, 2019

Frames:
Astronomik Ha 6nm: 12x600" -15C bin 2x2
Astronomik LRGB 1,25": 54x300" -15C bin 2x2
Astronomik L 1.25": 22x600" -15C bin 1x1

Integration: 10.2 hours

Darks: ~64

Flats: ~16

Bias: ~101

Avg. Moon age: 22.62 days

Avg. Moon phase: 45.04%

Bortle Dark-Sky Scale: 3.67


Astrometry.net job: 3249562

RA center: 12h 42' 51"

DEC center: +32° 24' 0"

Pixel scale: 1.222 arcsec/pixel

Orientation: 38.768 degrees

Field radius: 0.577 degrees


Resolution: 2753x2000

Locations: Fouras, Fouras, Charente-Maritime, France

Data source: Backyard

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Jean-Baptiste_Paris
Jean-Baptiste Auroux
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    NGC 4631 ("Whale") & NGC 4656 galaxies, 



    
        

            Jean-Baptiste Auroux
    Original
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    NGC 4631 ("Whale") & NGC 4656 galaxies, 



    
        

            Jean-Baptiste Auroux
    B

B

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NGC 4631 ("Whale") & NGC 4656 galaxies, 



    
        

            Jean-Baptiste Auroux