NGC 7009 "Saturn nebula". A deep sky imaging experiment at very long f/15 focal ratio (morrienz)

NGC 7009 "Saturn nebula". A deep sky imaging experiment at very long f/15 focal ratio

I tried an experiment while I have my rig set up for very long focal length planet "lucky" imaging of Jupiter and Saturn. I also tried long exposure imaging a bright, small deep space object with my C11 Edge HD SCT at f/15 with a 1.5 x barlow, so at 4200 mm focal length, and it seems to have worked fine. 13 x 3 minute exposures unguided on NGC 7009, the "Saturn Nebula", a small (40x30 arcsecs) "planetary nebula". 10Micron GM1000 mount, with a 6 arcsecs RMS model that I built with MW4 in this f/15 barlowed configuration (7 second bin 2 exposures for the model build). ZWO ASi294MC Pro camera, IR/UV cut filter. Stacked/processed in Astropixel Processor, Pixinsight, and Photoshop Elements. Imaged two nights ago from my rural backyard in the Bay of Plenty region in New Zealand. I think this f/15 deep space imaging would really only work with a bright object like this planetary nebula. A more zoomed in crop is at this link.

ZWO ASIAIR PRO USERS
Schmidt-Cassegrain Telescope (SCT) Imagers
Southern Hemisphere Astro
The OSC Club (One Shot Camera)
PixInsight Addicts
Images from the EdgeHD Series
Planetary Nebulae
New Zealand Astrophotography

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	Distinct awarded users	Total awarded images
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Distribution of subject types

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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Other
Unknown

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Status	Basic failed
Started	...
Astrometry.net job	5001097
PixInsight job	n/a
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