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The Horsehead Nebula (Barnard 33), 



    
        

            Luca Marinelli

The Horsehead Nebula (Barnard 33)

Imaging telescopes or lenses: Teleskop Service ONTC 10" f4 Newton

Imaging cameras: ZWO ASI1600MM Pro

Mounts: Astro-Physics Mach-1 GTO CP4

Guiding telescopes or lenses: Teleskop Service ONTC 10" f4 Newton

Guiding cameras: Starlight Xpress Ultrastar Mono

Software: Photoshop CC  ·  PIXINSIGHT 1.8  ·  Seqence Generator Pro  ·  PHD2 Guiding PHD2 v2.6.5

Filters: Astrodon Narrowband 3nm Ha  ·  Astrodon Tru-Balance Gen2 E-Series - B 36mm  ·  Astrodon Tru-Balance Gen2 E-Series - G 36mm  ·  Astrodon Tru-Balance Gen2 E-Series - R 36mm

Accessory: Tele Vue Paracorr Type 2  ·  QHYCCD QHYCFW3-M


Dates:Dec. 5, 2018Dec. 6, 2018Dec. 7, 2018Dec. 8, 2018Dec. 9, 2018Dec. 18, 2018Dec. 19, 2018Jan. 25, 2019Jan. 28, 2019Feb. 19, 2019

Frames:
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 1x120" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 63x30" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 2x45" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 39x60" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - G 36mm: 106x30" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - G 36mm: 41x60" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - R 36mm: 16x120" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - R 36mm: 52x60" (gain: 76.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - R 36mm: 25x90" (gain: 76.00) -20C bin 1x1
Astrodon Narrowband 3nm Ha: 6x180" (gain: 139.00) -20C bin 1x1
Astrodon Narrowband 3nm Ha: 47x300" (gain: 139.00) -20C bin 1x1

Integration: 9.0 hours

Darks: ~30

Flats: ~20

Flat darks: ~30

Bias: ~100

Avg. Moon age: 13.83 days

Avg. Moon phase: 39.43%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 2550289


Resolution: 2346x3190

Locations: Home Observatory, Schenectady, New York, United States

Data source: Backyard

Description

The iconic Horsehead Nebula in Orion imaged with a TS ONTC 10in f4 Newtonian and ZWO ASI1600MM Pro.

RGB data: Gain 76, Offset 30
Ha data: Gain 139, Offset 50

Target is too low on the horizon in light polluted part of the sky to acquire meaningful Luminance data. Luminance was synthesized from RGB and Ha data in Pixinsight.

Comments

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  • The Horsehead Nebula (Barnard 33), 



    
        

            Luca Marinelli
    Original
  • Final
    The Horsehead Nebula (Barnard 33), 



    
        

            Luca Marinelli
    B

B

Description: Version optimized for viewing on non-wide gamut monitors (fits inside sRGB color space).

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Sky plot

Sky plot

Histogram

The Horsehead Nebula (Barnard 33), 



    
        

            Luca Marinelli