Crescent nebula again (Kabir Jami)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · HD192020 · HD192163 · HD192182 · HD192303 · HD228243 · HD228304 · LBN 203 · NGC 6888 · Sh2-105

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Crescent nebula again

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Crescent nebula again

I posted an image of the Crescent nebula earlier this week. I regretted that I did not have enough OIII data to bring out the faint blue filaments. A member (Axel Stoeller-Raimbault ) of my local astronomy club suggested that he could take some OIII data with his RC telescope to do go with my Ha data. He also has an ASI1600mm camera. We thought, all that was need was to make sure the orientation of his frames matched my image. At the end, neither orientation nor field of view matched. However, we had no problem in integrating the frames from the two sources! Here is the combined image. This time the delicate blue filaments are clearly visible, thanks to Axel's more than 4 hours of OIII data!

Ha: Telescope Edge HD 8, Ha 30x120s
Ha: Telescope RC8, OIII 26x600s

ZWO ASI1600MM/QHY163M
Images from the EdgeHD Series
Schmidt-Cassegrain Telescope (SCT) Imagers
UK Astro-Imaging

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Status	Advanced success
Started	...
Astrometry.net job	4957770
PixInsight job	P5B46MX4N3Y1CYGE1KLTB6XSRZ1KMPTF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h12m08s.320
RA (top/left)	20h12m41s.810
RA (top/right)	20h11m00s.357
RA (bottom/right)	20h11m34s.542
RA (bottom/left)	20h13m15s.632

Dec (center)	+38°20′28″.89
Dec (top/left)	+38°33′36″.16
Dec (top/right)	+38°26′45″.42
Dec (bottom/right)	+38°07′21″.94
Dec (bottom/left)	+38°14′09″.78

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Crescent nebula again

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