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Contains:  NGC 5005, NGC 5014, NGC 5033, NGC5002, NGC5005, NGC5014, NGC5033
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NGC 5033 and NGC 5005 With Others, 


            Jonathan W MacCollum
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NGC 5033 and NGC 5005 With Others

Technical card

Imaging telescopes or lenses:Orion 203/1000 f/4.9

Imaging cameras:ZWO ASI071MC Pro

Mounts:Celestron CGEM

Guiding telescopes or lenses:ZWO OAG

Guiding cameras:ZWO ASI 178MM

Software:PixInsight PinInsight 1.8.5Isbeorn N.I.N.A.PHD 2

Accessory:Skywatcher 2" Coma Corrector f/4

Dates:April 10, 2019

Frames: 406x60"

Integration: 6.8 hours

Avg. Moon age: 5.00 days

Avg. Moon phase: 25.77% job: 2650918

RA center: 13h 12' 7"

DEC center: +36° 39' 40"

Pixel scale: 0.982 arcsec/pixel

Orientation: 97.539 degrees

Field radius: 0.782 degrees

Resolution: 4763x3197

Data source: Backyard


In an attempt to improve my galaxy images I opted to go without a filter and shoot a target that goes directly through the zenith for me. Comparing this to my usual galaxies that use a D1 filter I'm extremely satisfied with the result, however it took quite a bit of work to get here. I ran into an issue with my flats correctly subtracting my vignetting however the subtraction of dust motes would be either "over" corrected or "under corrected" throughout the frame. I ended up stacking this data twice with two different sets of flats: one taken on the night just before imaging against the sky, and one taken against a white-ceiling (both t-shirt flats.) Each would correctly subtract dust motes but only on half of the image. Luckly because of this I was able to leverage the gradient merge mosaic tool to stitch the two stacks together: the halves with the correctly subtracting flats.

Although still some artifacts remain from the work done, I'm glad I was able to pull this off!



Jonathan W MacCollum
License: None (All rights reserved)

Sky plot

Sky plot


NGC 5033 and NGC 5005 With Others, 


            Jonathan W MacCollum

In these public groups

Cooled Color Cams
ASI 071 mcc