IC 1795 Fish Head Nebula SHO (Barry Trudgian)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · NGC 896

IC 1795 Fish Head Nebula SHO, Barry Trudgian

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IC 1795 Fish Head Nebula SHO

Powered byPixInsight

IC 1795 Fish Head Nebula SHO

Acquisition over 4 nights with a PixInsight NormalizScaleGradient setting that reduced the blink approved frames total exposure time by approximately 50%, down from 14.7 hours.

Original
Final
B

B

Description: Original 7.5 hour image blended in Photoshop with 75% opacity of new image. PixInsight: New image from 100% of files from WBPP2 - NormalizeScaleGradient(toggle excluded files to be included) - ABEsub - ABEdiv - Statistics lowest median value was SII - LinearFit to SII - Pixelmath [R=0.4*Ha+0.6*SII,G=0.4*OIII+0.3*Ha+0.3*SII, B=OIII] - ABEsub - ABEdiv - HistogramTransformation - CurvesTransformation - Export 16 bit Tif for Photoshop.
Photoshop: Topaz AI Clear filter - Astronomy Tools action(local contrast enhancement) - Adobe Camera Raw filter for Colour mixer (yellow and blue luminance and saturation), Texture, Clarity, Noise reduction, Shadows, Blacks, Highlights - blend 75% new image with 25% old image using opacity between layers - export as Jpeg for version 2.

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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
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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	Basic success
Started	...
Astrometry.net job	4952667
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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IC 1795 Fish Head Nebula SHO

IC 1795 Fish Head Nebula SHO

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B

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Image Index:

Contribution Index (beta):

IC 1795 Fish Head Nebula SHO

IC 1795 Fish Head Nebula SHO

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Acquisition details

Description

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B

Sky plot

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