Hemisphere:  Northern  ·  Contains:  B150
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Barnard 150 - A dancing shadow in Cepheus..., 



    
        

            Jean-Baptiste Auroux
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Barnard 150 - A dancing shadow in Cepheus...

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: Topaz Denoise AI  ·  Pleiades Astrophoto PixInsight 1.8 Ripley  ·  Photoshop  ·  PHD Guiding 2  ·  Atik Artemis

Filters: Astronomik LRGB 1,25"

Accessory: Atik OAG


Dates:May 28, 2020May 29, 2020

Frames:
Astronomik LRGB 1,25": 60x300" -15C bin 2x2
Astronomik L 1.25": 40x600" -15C bin 1x1

Integration: 11.7 hours

Darks: ~64

Flats: ~12

Bias: ~101

Avg. Moon age: 6.19 days

Avg. Moon phase: 37.52%

Bortle Dark-Sky Scale: 4.00


Astrometry.net job: 4032971

RA center: 20h 50' 26"

DEC center: +60° 9' 39"

Pixel scale: 1.533 arcsec/pixel

Orientation: 173.982 degrees

Field radius: 0.748 degrees


Resolution: 2741x2199

Locations: Fouras, Fouras, Charente-Maritime, France

Data source: Backyard

Description

The dark nebula Barnard 150, located about 1200 light years away.
We traditionally see a "seahorse" there, but for my part I have the impression to see a moonwalk-dancer with a long cape behind him ;)

The processing of this image gave me a lot of trouble, due to the presence of a parasitic reflection in the lower left-hand corner (both on the luminance and on the RGB layer - see version B for an exemple on the raw RGB layer).

Of course, it was not possible to cross over because of the already reduced field strength...

In the end I managed to correct it as best as I could, but I shall have to do it again later, with a larger field and without reflections! :)

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La nébuleuse obscure Barnard 150, située à environ 1200 années-lumière.
On y voit traditionnellement un hippocampe, mais pour ma part j'ai l'impression de voir un danseur de moonwalk avec une longue cape derrière lui... ;)

Le traitement de cette image m'a posé beaucoup de soucis, en raison de la présence d'un reflet parasite dans le coin inférieur-gauche (tant sur la luminance que sur la couche RGB - cf version B pour la version brute RGB).

Pas possible évidemment de croper compte-tenu du champ déjà réduit...

Au final j'ai réussi à le corriger du mieux que j'ai pu ; mais à refaire avec un plus grand champ et sans reflets ! :)

Comments

Author

Jean-Baptiste_Paris
Jean-Baptiste Auroux
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Revisions

    Barnard 150 - A dancing shadow in Cepheus..., 



    
        

            Jean-Baptiste Auroux
    Original
    Barnard 150 - A dancing shadow in Cepheus..., 



    
        

            Jean-Baptiste Auroux
    B
    Barnard 150 - A dancing shadow in Cepheus..., 



    
        

            Jean-Baptiste Auroux
    C
  • Final
    Barnard 150 - A dancing shadow in Cepheus..., 



    
        

            Jean-Baptiste Auroux
    D

B

Description: Image RGB avec le reflet parasite...

C

Description: Slight improvement of star color.

D

Description: Slight improvment of noise reduction

Sky plot

Sky plot

Histogram

Barnard 150 - A dancing shadow in Cepheus..., 



    
        

            Jean-Baptiste Auroux