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Contains:  IC 4628
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The flaming Prawn Nebula IC4628

Technical card

Dates:Aug. 5, 2019

Frames: 53x300"

Integration: 4.4 hours

Avg. Moon age: 5.01 days

Avg. Moon phase: 25.79%

Basic astrometry details job: 2854620

RA center: 16h 57' 10"

DEC center: -40° 23' 56"

Pixel scale: 2.007 arcsec/pixel

Orientation: 110.620 degrees

Field radius: 1.161 degrees

Resolution: 3464x2309

Data source: Backyard


The Prawn in Hubble Palette (SHO), was a good target to test out my focuser backlash compensation. Worked pretty well and was able to consistently achieve the V curve throughout the imaging and refocusing process routine in SGP. Unfortunately limited clear skies opportunity and visibility only 2-3 hours a night before it disappears behind the house. After a couple of nights decided to see what I can pull out with my first attempt using PixInsight. Hope you like it!
17x 300” Ha
17x 300” Oiii
19x 300” Sii
Sharpstar CF80/500 + FF
Zwo1600mm pro + EFW + 7nm filters
Zwo120mm mini + 130mm f4 mini guide scope
Pegasus Astro PPB
Pegasus Astro FC1
Acquisition via SGPRO, PHD2, Sharpcap PA
Calibrated with 20x darks, flats and bias each.



Tim Looi
License: None (All rights reserved)

Sky plot

Sky plot


The flaming Prawn Nebula IC4628, 


            Tim Looi