Sh2-157 4 pane mosaic (Marc Ricard)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · M 52 · NGC 7510 · NGC 7538 · NGC 7635 · NGC 7654 · The star 4Cas

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Sh2-157 4 pane mosaic

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Sh2-157 4 pane mosaic

Initially my goal was to target the bubble and Sh2-157 but I decided to include Sh2-161 as well to balance the composition. I started capturing narrowband subs of this field in August 2019 with the goal of supplementing it with broadband data from my favorite dark sky site; a 4 hour drive from home. As I waited for a 2 day clear break, I'd let SGP capture more narrowband subs whenever it was clear. By December the 2 day clear break I was hoping for never came and the field was getting too low to image from my latitude anyways and so I decided to see what I could pull out of the 26 Ha, 27 SII and 35 OIII, 20 minute subs that went into each pane of this 4 panel mosaic. Pre-processing as well as creating the mosaics for each channel was done in Astropixelprocessor. The channel masters were then imported into Pixinsight for the rest with a bit of Highpass in Photoshop. I also created a starless version with the help of starnet ++ that I used to enhance the nebulosity.

Original
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Final
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Description: A few PS tweaks

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Description: a few tweaks

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Description: smoothed out the stars

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Status	Basic success
Started	...
Astrometry.net job	3464203
PixInsight job	n/a
PixInsight queue size	n/a
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Sh2-157 4 pane mosaic

Sh2-157 4 pane mosaic

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Sh2-157 4 pane mosaic

Sh2-157 4 pane mosaic

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K

Sky plot

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