Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Orion Nebula  ·  IC 420  ·  Lower Sword  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  Orion Nebula  ·  The star 42Ori  ·  The star 45Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri  ·  Upper Sword  ·  the Running Man Nebula
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Orion's Sword & The Running Man, 



    
        

            Brent Newton
Orion's Sword & The Running Man
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Orion's Sword & The Running Man

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)
Getting plate-solving status, please wait...
Orion's Sword & The Running Man, 



    
        

            Brent Newton
Orion's Sword & The Running Man
Powered byPixInsight

Orion's Sword & The Running Man

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Technical card

Imaging telescopes or lenses: Astro-Tech AT72ED

Imaging cameras: Canon 450D

Mounts: Celestron CG5 ASGT

Guiding telescopes or lenses: Orion 50mm GuideScope

Guiding cameras: ZWO ASI120MC

Focal reducers: Astro-Tech 0.8x reducer/flattener

Software: PHD2  ·  Photoshop CS6  ·  Noel Carboni's Astro Tools for PhotoShop Astronomy tools for Photoshop  ·  DeepSky Stacker Deep Sky Stacker (DSS)

Accessory: Canon Remote control


Dates:March 2, 2017

Frames:
32x10" (5' 20") ISO1600
20x30" (10') ISO1600
40x90" (1h) ISO1600

Integration: 1h 15' 20"

Darks: ~15

Flats: ~80

Flat darks: ~50

Bias: ~120

Avg. Moon age: 4.15 days

Avg. Moon phase: 18.27%

Bortle Dark-Sky Scale: 4.00

Temperature: 3.13


Basic astrometry details

Astrometry.net job: 3889137

RA center: 5h 35' 6"

DEC center: -5° 14' 16"

Pixel scale: 5.449 arcsec/pixel

Orientation: 91.188 degrees

Field radius: 1.746 degrees


Resolution: 1920x1280

Locations: Kechi, Wichita, KS, United States

Data source: Backyard

Description

My first light using my AT72ED. This doublet has certainly proven itself regarding image quality, I noticed no aberration, though in this first attempt I believe the focus tube had unfortunately shifted to a very slight angle and caused some stars to stretch on the edges (even with the field flattener). This scope has an excellent FoV (even without the flattener), I look forward to imaging the rising Virgo cluster and other larger objects later this year!

This was my first target for the evening, and after some considerable frustration in focusing and aligning both this scope and the Orion 50mm Guidescope for the first time, I decided to take a quick Orion for my satisfaction - to replace the relative disappointment of my light pollution-riddled attempt from late November. Orion hung in the sky to my south over Wichita, so light pollution limited my exposures to 90s, though if I had tried from another location I have no doubt I could have reached 300s.

I learned many new DeNoising techniques for this image - and as a result I think I am beginning to become truly comfortable in the use of Photoshop for processing my images.

Workflow: Levels Stretch, double pass of GradientXTerminator, Curves Stretch, split image into RGB and artificial Luminence layer. Sharpened Lum image, increase saturation on RGB image, DeNoised the backgrounds of both and then recombined. Further color balance and saturation edits afterwards, followed by some star correction and reduction.

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Orion's Sword & The Running Man, 



    
        

            Brent Newton

In these public groups

Central USA