Mighty ET in SHO (IC 1396) (JanHeremans)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B161 · B163 · B365 · B367 · HD204613 · HD205196 · HD205510 · HD205948 · HD206081 · HD206183 · HD206267 · HD206482 · HD206773 · HD207086 · HD239712 · HD239729 · HD239748 · IC 1396 · LBN 451 · LBN 452 · LBN 455 · LBN 456 · LBN 457 · LDN · LDN 1085 · LDN 1086 · LDN 1087 · LDN 1090 · LDN 1092 · LDN 1093 · And 31 more.

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Mighty ET in SHO (IC 1396)

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Mighty ET in SHO (IC 1396)

IC 1396 is located in the constellation Cepheus (+/- 2.400 light years from us) and is 100 light years across.
The typical Elephant's Trunk is designated IC 1396A and considered more than 20 light years across. It is an active star forming region.
It is energized and eroded by the strong radiation pressure of the massive star HD 206267.

Session over 2 clear nights with SII, Hα, OIII filters : 7 and 8 September 2023
Quality of the OIII-subs was (as usual) very poor compared to the Hα-subs

Process in Pixinsight : WBPP with drizzle and cosmetic correction - DynCrop on S,H,O- DBE on S,H,O - Pixelmath combination of S,H and O (Red=S, Green=0,8*H+0,2*S, Blue= O)
For getting Stars = SPCC - RC BlurXterminator - RC StarXterminator and keep stars -Stretch Stars-Morphological Transform
For Starless image = RC BlurXterminator - RC StarXTerminator (only keep starless image) - RC NoiseXTerminator -Stretch - SHONormalisation (thank you Bill Blanshan) -Curves with Blue, Red, Yellow and range masks - SCNRmodified to remove some remaining green - LocalHistoEqualisation - Script DarkStructureEnhance
Final = Stars + Starless via Pixelmath = ~((~Starless)*(~Stars))

Astrophotographers of Belgium
ZWO ASI2600MM Pro
William Optics GT Series

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	Distinct awarded users	Total awarded images
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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	8452274
PixInsight job	ZE8XN73AKMLKZLFHQPQKF38EW5RE0UNU
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h38m52s.95
RA (top/left)	21h26m22s.78
RA (top/right)	21h50m31s.55
RA (bottom/right)	21h52m05s.61
RA (bottom/left)	21h26m27s.25

Dec (center)	+57°27′52″.6
Dec (top/left)	+56°23′19″.5
Dec (top/right)	+56°13′51″.9
Dec (bottom/right)	+58°27′19″.4
Dec (bottom/left)	+58°37′26″.6

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Mighty ET in SHO (IC 1396)

Mighty ET in SHO (IC 1396)

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Mighty ET in SHO (IC 1396)

Mighty ET in SHO (IC 1396)

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