IC 1396 - Ring of Fire and Darkness (Joshua Kovach)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B160 · B161 · B162 · B163 · B365 · B366 · B367 · Erakis · Erakis (μ Cep) · HD204231 · HD204613 · HD204827 · HD205113 · HD205196 · HD205329 · HD205510 · HD205917 · HD205948 · HD206081 · HD206183 · HD206267 · HD206482 · HD206536 · HD206773 · HD206842 · HD207086 · HD208063 · HD208095 · HD239676 · HD239706 · And 63 more.

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IC 1396 - Ring of Fire and Darkness

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IC 1396 - Ring of Fire and Darkness

I had forgotten to finish processing this one that I was really excited about months ago. The first version of this is the one I processed back in early August.

Also, I hadn't realized at the time that LDN 1121 (original target here) is well within IC 1396, so ended up with about double the data I expected for this target.

HDR Composition of 150s and 80s subframes.

B

Description: This was a first pass at this data after learning new techniques, but I wasn't sure why I kept ending up with everything tinted so pink.

Uploaded: ...

C

Description: Figured out that all the pink was from running SCNR too early in the process. This is my final version of the nebula.

Uploaded: ...

E

Description: I found about double the original data that I forgot about.

Uploaded: ...

F

Description: Finally figured out how to get the corners of this image right. Bad DBE in the early stages was causing a lot of overbrightness in the corners.

Uploaded: ...

Grand Rapids Amateur Astronomical Association
Unmodified DSLR Deep Sky
WO Redcat 51 Group
AstroWorld TV

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
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Top pick nominations

Distribution of subject types

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
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
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	6679379
PixInsight job	8WZK49FH98W8RWRCZ3MZ059DHWIW4YLY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h38m08s.33
RA (top/left)	21h53m59s.19
RA (top/right)	21h40m29s.75
RA (bottom/right)	21h20m52s.94
RA (bottom/left)	21h36m04s.40

Dec (center)	+57°30′35″.3
Dec (top/left)	+55°52′32″.9
Dec (top/right)	+60°12′30″.8
Dec (bottom/right)	+59°00′19″.8
Dec (bottom/left)	+54°48′16″.7

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IC 1396 - Ring of Fire and Darkness

IC 1396 - Ring of Fire and Darkness

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IC 1396 - Ring of Fire and Darkness

IC 1396 - Ring of Fire and Darkness

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C

E

F

Sky plot

Histogram

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