IC 1396, OSC + Ha (Stephen Garretson)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B160 · B161 · B162 · B163 · B365 · B367 · Erakis · IC 1396 · PK097+03.1 · PK098+02.1 · PK098+04.1 · PK100+04.1 · Sh2-128 · Sh2-131 · The star Garnet Star (μCep) · VdB142 · mu. Cep

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IC 1396, OSC + Ha

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IC 1396, OSC + Ha

Continuing to play with the ASI 2600. Rather a convoluted path to this image. 4 hours each of Ha and OSC data. Masters were combined in the PixInsight script NBRGBCombination. Then that result was mixed in PixelMath, 40% Ha master image and 60% NBRGBCombo image. This allowed the Ha data to much better define the shape of the object, which was not evident enough for my liking in the NBRGBCombo version.

William Optics RedCat 51 f/4.9 Petzval Astrograph

ASI 2600 MC cameraOptolong L-Pro light pollution filter

William Optics WhiteCat 51 f/4.9 Petzval Astrograph

ASI 1600MM camera

Baader 3.5nm Ha filter

William Optics Star 71 f/4.9 Gen II Petzval Astrograph

ASI 290M Mini guide camera

Paramount MX+

JTD Alignment Saddle

capture:

TheSkyX

Sequence Generator Pro

Starlight Xpress Filter wheel control program

PHD2 guiding

Processing:

PixInsight

Topaz Labs DeNoise AI

Preview

Original
Final
B

The refractors!

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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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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
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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	3947211
PixInsight job	P7YPMYPP6I1QULFKUQCCLQ7ICRW4IXO1
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h37m52s.40
RA (top/left)	21h49m07s.30
RA (top/right)	21h48m14s.62
RA (bottom/right)	21h25m27s.59
RA (bottom/left)	21h28m34s.50

Dec (center)	+57°27′34″.3
Dec (top/left)	+55°38′12″.6
Dec (top/right)	+59°25′59″.9
Dec (bottom/right)	+59°12′49″.1
Dec (bottom/left)	+55°26′19″.8

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IC 1396, OSC + Ha

IC 1396, OSC + Ha

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Contribution Index (beta):

IC 1396, OSC + Ha

IC 1396, OSC + Ha

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