NGC 7009 The Saturn Nebula (Peter Goodhew)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: NGC 7009 · PGC 966057 · PGC 966542 · PK037-34.1 · Saturn nebula

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NGC 7009 The Saturn Nebula

Link: https://www.imagingdeepspace.com/

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NGC 7009 The Saturn Nebula

Link: https://www.imagingdeepspace.com/

Before starting an imaging run I now do some test images with different filters, exposures, and binning to see which combinations work best. When I examined the OIII 1800s bin 2x2 test image I was surprised to see an asymmetric outer shell with intricate structures, and so factored this into my image capture plan. This is the result. There is also a very faint diffuse OIII shell that is even further out from the core.

I found processing this to be a real challenge, with 7 filters, and exposures varying from 30 sec bin 1x1 to 1800s bin 2x2. Integrating images with such extreme dynamic range was also a challenge. I was concerned by some lighter parts of the sky background, but after checking with other images available online it became clear that this was integrated flux nebula.

Entre Encinas y Estrellas (e-EyE)
Planetary Nebulae

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	Distinct awarded users	Total awarded images
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This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Northern lights
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	2856619
PixInsight job	5X33EBG4ILIEGK28G7V5W5L5YLF9YO3C
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h04m08s.554
RA (top/left)	21h03m22s.574
RA (top/right)	21h04m54s.962
RA (bottom/right)	21h04m54s.523
RA (bottom/left)	21h03m22s.267

Dec (center)	-11°22′41″.33
Dec (top/left)	-11°30′46″.42
Dec (top/right)	-11°30′37″.63
Dec (bottom/right)	-11°14′35″.39
Dec (bottom/left)	-11°14′43″.76

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NGC 7009 The Saturn Nebula

NGC 7009 The Saturn Nebula

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NGC 7009 The Saturn Nebula

NGC 7009 The Saturn Nebula

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