NGC 225 and Friends in Cassiopeia (Greg Nelson)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: LBN 604 · LDN 1291 · LDN 1302 · NGC 225 · VdB4

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NGC 225 and Friends in Cassiopeia

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NGC 225 and Friends in Cassiopeia

Thankfully the monsoons have moved away and we are back to imaging in the East Phoenix Valley.

This target was selected as a test of my revised procedures for acquiring flats, calibrating, and imaging settings selected to eliminate the effects of residual bulk image characteristics of the GSENSE 4040 sensor in the Diffraction Limited Aluma AC4040 camera. I needed a good dusty region with faint details across the field to check for sensor patterns after significant number of frames have been integrated.

I think I am finally there, and the use of the Flat panel versus sky flats allows me to acquire more flat subs to reduce the noise of the low ADU flats (400-600 ADU) needed to squash RBI in the flats. I am also using the High Stack Pro mode to stack 1 minute subframes on the camera during the 4 minute acquisition of each light sub. I am pleased with the low level detail that results. Compared to images from last year, there is a world of difference where black point clipping was needed to hide the fixed pattern noise in my images.

This learning curve has been a hard one. Many thanks to all those who interacted to suggest possibilities. If I can help you, just drop me a message.

Arizona Astrophotographers
Dark Nebula

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	6241970
PixInsight job	I8IGRB5HOS371LHDURV6T2NSHEPDQHI3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h43m38s.127
RA (top/left)	00h41m06s.340
RA (top/right)	00h41m39s.886
RA (bottom/right)	00h46m07s.851
RA (bottom/left)	00h45m38s.854

Dec (center)	+61°46′52″.67
Dec (top/left)	+62°03′07″.78
Dec (top/right)	+61°27′07″.69
Dec (bottom/right)	+61°30′26″.84
Dec (bottom/left)	+62°06′29″.70

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NGC 225 and Friends in Cassiopeia

NGC 225 and Friends in Cassiopeia

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NGC 225 and Friends in Cassiopeia

NGC 225 and Friends in Cassiopeia

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