IC 417 / Spider Nebula (SHO with RGB stars) (Turix)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: 24 Aur · IC 417 · The star φ Aur

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IC 417 / Spider Nebula (SHO with RGB stars)

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IC 417 / Spider Nebula (SHO with RGB stars)

IC 417 / Spider Nebula

Taken during the recent full moon, ostensibly to test out my new dedicated Sii filter, which has been a noticeable improvement over the NB3 due to the much narrower bandpass. For this image I chose to just use the Red channel, but I'm going to investigate various PixelMath expressions that might allow me to recover some additional data from the G/B channels as on the 533MC they still have ~20-30% / ~5-10% sensitively at the Sii wavelength.

Unfortunately I've finally been bitten by the dreaded l-extreme halos and, whilst I was able to work around it for most of the stars, Phi Aurigae proved too much leaving me with a pretty nasty halos in both Ha and Oiii data even after star removal. I decided to cut this image a bit shorter than I was planning due to this and invest the clear nights into another project that I'll be processing next instead - originally I'd planned at least another full night of Sii data.

Final
Original
B

B

Title: Alternate Crop

Description: Drizzle x2 and alternate crop tight on the Spider

Uploaded: ...

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Status	Basic success
Started	...
Astrometry.net job	6790206
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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IC 417 / Spider Nebula (SHO with RGB stars)

IC 417 / Spider Nebula (SHO with RGB stars)

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IC 417 / Spider Nebula (SHO with RGB stars)

IC 417 / Spider Nebula (SHO with RGB stars)

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