The Blue Horsehead Nebula

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    A wide-field DSLR Lens image of the Blue Horsehead Nebula (IC 4592), a very faint reflection nebula in the constellation Scorpius. The nebula is lit by the multiple Star System Nu Scorpii.

    Gear:
    Nikon AF-S VR Micro-Nikkor 105mm f/2.8G IF-ED (N Series Lens).
    Cyclops Optics BLADE-N Camera Lens Adapter.
    Celestron SkySync GPS Accessory.
    Orion Mini 50mm Guide Scope.
    Orion StarShoot Autoguider.
    Celestron AVX Mount.
    QHYCCD PoleMaster.
    Celestron StarSense.
    Optolong L-Pro & RGB filters.
    QHYCFW2-M-US Filterwheel (7 position x 36mm).
    QHY163M Cooled CMOS Monochrome Astronomy Camera.

    Tech:
    Guiding in Open PHD 2.6.5.
    Image acquisition in Sequence Generator Pro.

    Lights/Subs:
    Lens stopped down to f/4.
    Imaged at -20°C
    QHY Sensor Sensitivity:
    Gain: 120
    Offset: 60

    Imaged in LRGB:
    L = 24 x 300 sec.
    R = 18 x 300 sec.
    G = 18 x 300 sec.
    B = 18 x 300 sec.

    Calibration Frames:
    50 x Bias/Offset.
    24 x Darks.

    Image Acquisition:
    Sequence Generator Pro.

    Processing:
    Pre-Processing and Linear workflow in PixInsight,
    and finished in Photoshop.

    Astrometry Info:
    Center RA, Dec: 244.079, -19.356
    Center RA, hms: 16h 16m 19.061s
    Center Dec, dms: -19° 21' 20.221"
    Size: 3.24 x 3.94 deg
    Radius: 2.551 deg
    Pixel scale: 8.87 arcsec/pixel
    Orientation: Up is 209 degrees E of N
    View an Annotated Sky Chart for this image.
    View this image in the WorldWideTelescope.

    Martin
    -
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    kevpkelly, Love-is-wonderful, and 52 other people added this photo to their favorites.

    1. Martin_Heigan 6 weeks ago | reply

      Astrophotography Gallery:
      Fighting Dragons Nebula The Great Nebula in Orion (M42) Rho Ophiuchi Cloud Complex Astrophotography HD Video Showcase:
      Astrophotography Showcase
      Martin Heigan
      Astrophotography Gallery I anti-matter-3d.com

    2. BerColly 6 weeks ago | reply

      Excellent!

      Merci pour votre visite et commentaires!
      Thanks for your visit and comments!

      --
      Seen in the group"The Light Painters Society "

      BerColly - View my recent photos on Flickriver

    3. anacm.silva 6 weeks ago | reply

      This caught my eye in Prestige Nature & is a winning photo!

      Thanks for posting in Prestige Nature Post 1 Comment 2

    4. peter-goettlich 6 weeks ago | reply

      Amazing work seen in

      NATURES PRIME
      (POST 1 AWARD 4)

    5. PETEJLB 6 weeks ago | reply

      This caught my eye in Prestige Nature & is a winning photo!

      Thanks for posting in Prestige Nature Post 1 Comment 2

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