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Contains:  M 106, NGC 4258, NGC 4248, NGC 4232, NGC 4231, NGC 4226, NGC 4217
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M106 and NGC 4217, 


            Jonathan W MacCollum
M106 and NGC 4217

M106 and NGC 4217

Technical card

Imaging telescope or lens:Orion 203/1000 f/4.9

Mount:Celestron CGEM

Guiding telescope or lens:ZWO OAG

Guiding camera:ZWO ASI 178MM

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

Filter:Hutech IDAS LPS D1 2"

Accessory:Skywatcher 2" Coma Corrector f/4

Resolution: 5447x3644

Dates:May 24, 2019

Frames:Hutech IDAS LPS D1 2": 150x60" (gain: 111.00) -10C bin 1x1

Integration: 2.5 hours

Darks: ~60

Flats: ~30

Flat darks: ~30

Avg. Moon age: 20.19 days

Avg. Moon phase: 70.22%

Bortle Dark-Sky Scale: 4.00 job: 2713330

RA center: 184.374 degrees

DEC center: 47.216 degrees

Pixel scale: 0.496 arcsec/pixel

Orientation: 182.168 degrees

Field radius: 0.452 degrees

Data source: Backyard


First light with asi 183mm at 0.5"/px imaging scale.
Guiding this night was better than ever but still lots of fast oscillation in RA keeping my stars flat and oblong. My cgem's RA is certainly not up for the task, but a bit of motion blur decon did help a little.

For comparison, here's a 6 hour integration from my OSC camera that has a twice as big image scale:



Jonathan W MacCollum
License: None (All rights reserved)

Sky plot

Sky plot


M106 and NGC 4217, 


            Jonathan W MacCollum