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General SHO Cygnus Wall

Astrophotography Imaging


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EasyQuest

General   SHO   Cygnus Wall

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After weeks of bad seeing and clouds. I am about to finish this project. My first light on the ZWO ASI 2600MM Pro with the include ZWO filters for this SHO project of the Cygnus Wall. I finally get to use the ED102CF FCD-100 again after galaxy session and decided on the field of view to used on the Cygnus Wall, There are halos on OIII as expected but I was not bothered too much given the price of the ZWO filters. OIII may have been slightly out of focus or bloated stars but the overall image turned out very will in the end.
Moon Phase, Location, and Date

  • Moon Phase For July: 15%, 86%, 78%, 70% (Moon during HA session as well as SII)
  • Moon Phase For August: 41% (Moon was rising for SII and OIII but was on the other side of the sky)
  • Murfreesboro, TN (Bortle 6)
  • July 15,27,28,29, 2021
  • August 01, 2021
Equipment
  • Telescope/Lens: Explore Scientific ED102-FCD100 (714 mm at f/7)
  • Flattener/Reducer: Hotech 2" SCA Self-Centering Field Flattener (Native Focal Length)
  • Auto Focuser: ZWO EAF Electronic Automatic Focuser
  • Filter: ZWO 7.0nm Narrowband SII - 36mm Unmounted
  • Filter: ZWO 7.0nm Narrowband HA - 36mm Unmounted
  • Filter: ZWO 7.0nm Narrowband OIII - 36mm Unmounted
  • Filter Wheel: ZWO EFW (7 x 36mm)
  • Mount: Sky-Watcher HEQ5 Pro (Rowan Belt Modification for better tracking and autoguiding)
  • Off-Axis Guider: ZWO OAG
  • Guider: ZWO ASI120MM-MINI
  • Dew Heater Controller: Pegasus Astro Pocket Powerbox Micro (Clean up Cables)
  • Dew Heater: Dew Not 6" Dew Heater Strip - DN007
  • Dew Heater: Dew Not 1" Dew Heater Strip - DN002
  • Camera: ZWO ASI2600MM Pro
  • Polar Alignment: QHYCCD Polemaster (Precise polar alignment)
  • Laptop (For imaging, dither, auto guiding, plate solve)
Software
  • PHD2 (For Auto Guiding)
  • QHYCCD PoleMaster Software (Polar Alignment)
  • Astrophotography Tool (APT) (For Dither, plate solve, mount control)
  • EQMOD (Remove Hand Controller and allow pulse guiding)
  • Pegasus Astro Pocket Powerbox (Control the Pocket Powerbox Micro)
  • Deep Sky Stacker (Stacking Frames)
  • Photoshop (Processing)
  • PixInsight (Processing)
Acquisition
  • Exposure per Filter: 15 hrs
  • SII - 60 x 300s (5 hrs)
  • HA - 60 X 300s (5 hrs)
  • OIII - 60 x 300s (5 hrs)
Temperature: -5°C on all calibration frames as well as light frames
  • 60 Flats for SII
  • 40 Flats for HA and OIII
  • 20 Darks (Used Master Dark file)
  • 20 Bias (Used Master Bias file)
  • Gain: 100 (Unity Gain)
  • Bin: 1x1
  • Offset: Left Default
Processing in Photoshop and PixInsight
  • Stacked in DSS
  • Drizzle 2x
  • Edited in Photoshop and PixInsight
  • Manual Gradient Adjustment
  • Adjusted levels
  • Adjusted Curves
  • Selective Curves Adjustment
  • Color Correction
  • Blacks Correction
  • Selective Saturation Applied
  • Vibrance Applied
  • Light sharpening Applied
  • Light noise reduction on all channels
  • Luminance layer for highlights
  • Cropped
  • StarNet in PixInsight
  • Separate Star layer for star reduction
  • Color Dodge for smaller stars on star layer
  • Star corrections
  • Exported Half Resolution


    • startrev likes this

    Just seeing this as I searched for the Hotech flattener with the 2600MM. Turns out I have the same scope too! I'm just getting it set up and have some issues with fly away stars in the corners. Did you have any issues with tilt or finding the correct backspacing? 

     

    Fantastic image! I'm excited to start working with the 2600MM.

    Just seeing this as I searched for the Hotech flattener with the 2600MM. Turns out I have the same scope too! I'm just getting it set up and have some issues with fly away stars in the corners. Did you have any issues with tilt or finding the correct backspacing? 

     

    Fantastic image! I'm excited to start working with the 2600MM.

    No issue I had with this setup. 55mm is the back space, my particular camera has a slight tile but nothing too extreme. ES102 is awaiting Feather touch focuser. 




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