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Contains:  48 sig Ori, 50 zet Ori, Alnitak, B33, Horsehead nebula, IC 431, IC 432, IC 434, IC 435, IC431, IC432, IC434, IC435, NGC 2023, NGC 2024, NGC2023, NGC2024, Orion, Sh2-277, The star Alnitak (ζOri), The star σOri, VdB51
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Horsehead Nebula - QHY268C First Light, 


            Jarrett Trezzo
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Horsehead Nebula - QHY268C First Light

Imaging telescopes or lenses: Celestron 11" Rowe-Ackermann Schmidt Astrograph

Imaging cameras: QHYCCD QHY268C

Mounts: Orion Atlas Pro AZ/EQ-G

Guiding telescopes or lenses: Astromania 60mm Guide Scope

Guiding cameras: QHYCCD QHY5III178M

Software: Adobe Lightroom Classic  ·  PixInsight 1.8.5  ·  Adobe Photoshop CC‎  ·  SynScan Pro  ·  Astro Pixel Processor  ·  Metaguide 5.2.6  ·  Sequence Generator Pro

Filters: Astronomik L2 UV/IR Cut

Accessory: Celestron Focus Motor  ·  Berlebach Planet Tripod  ·  Baader Planetarium UFC  ·  Spike-a Flat Fielder  ·  QHYCCD PoleMaster

Dates:Dec. 26, 2019Dec. 27, 2019

117x60" (gain: 0.00)

Integration: 2.1 hours

Avg. Moon age: 0.78 days

Avg. Moon phase: 0.95%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 19.65 job: 3147370

RA center: 5h 40' 46"

DEC center: -2° 16' 46"

Pixel scale: 1.252 arcsec/pixel

Orientation: -88.883 degrees

Field radius: 1.277 degrees

Resolution: 6147x4022

Locations: Backyard, Parrish, FL, United States

Data source: Backyard


First light test with the new APS-C OSC camera from QHY.

This was taken in Photographic Mode, Gain 0, Offset 30.



Jarrett Trezzo
License: None (All rights reserved)


  • Horsehead Nebula - QHY268C First Light, 


            Jarrett Trezzo
  • Final
    Horsehead Nebula - QHY268C First Light, 


            Jarrett Trezzo


Description: increased contrast slightly

Sky plot

Sky plot


Horsehead Nebula - QHY268C First Light, 


            Jarrett Trezzo