Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  16 Cep  ·  24 Cep  ·  PGC67347  ·  PGC67671  ·  PGC68620  ·  PGC90396  ·  The star 16Cep  ·  The star 24Cep  ·  VdB149  ·  VdB150

Image of the day 07/16/2019

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    LDN 1235, a.k.a. The Dark Shark nebula in Cepheus, 



    
        

            Francesco Meschia
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    LDN 1235, a.k.a. The Dark Shark nebula in Cepheus

    Imaging telescopes or lenses: Astro-Tech AT65EDQ

    Imaging cameras: Nikon D5500 (Ha mod)

    Mounts: iOptron iEQ45 Pro

    Guiding telescopes or lenses: Stellarvue 9x50 Guide Scope

    Guiding cameras: Lacerta M-Gen II autoguider

    Software: Pleiades Astrophoto PixInsight 1.8 Ripely


    Dates:July 6, 2019

    Frames: 19x480" ISO400

    Integration: 2.5 hours

    Darks: ~25

    Flats: ~20

    Bias: ~300

    Avg. Moon age: 4.16 days

    Avg. Moon phase: 18.38%

    Bortle Dark-Sky Scale: 2.00

    Mean SQM: 21.70


    Astrometry.net job: 3254172

    RA center: 22h 4' 23"

    DEC center: +73° 12' 36"

    Pixel scale: 1.909 arcsec/pixel

    Orientation: 0.042 degrees

    Field radius: 1.817 degrees


    Resolution: 5700x3800

    Locations: Pinnacles East, Paicines, California, United States

    Data source: Traveller

    Comments

    Revisions

      LDN 1235, a.k.a. The Dark Shark nebula in Cepheus, 



    
        

            Francesco Meschia
      Original
      LDN 1235, a.k.a. The Dark Shark nebula in Cepheus, 



    
        

            Francesco Meschia
      C
    • Final
      LDN 1235, a.k.a. The Dark Shark nebula in Cepheus, 



    
        

            Francesco Meschia
      D

    C

    Description: More aggressive NR

    Uploaded: ...

    D

    Description: Applied Adam Block’s star de-emphasis technique, by using a starless version prepared with StarNet++ as source for pixel subsitution

    Uploaded: ...

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    LDN 1235, a.k.a. The Dark Shark nebula in Cepheus, 



    
        

            Francesco Meschia

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