IC417 a difficult spider (John Favalessa)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: IC 417 · LBN 804 · LDN 1526 · Sh2-234 · The star φAur

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IC417 a difficult spider

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IC417 a difficult spider

Congratulations to all of you who have successfully imaged this! As for me it was an absolute bitch of a target. I started from scratch more than I want to recall. I have 183 x 300 sec of Ha, Sii and Oiii for which I was able to produce absolutely nothing worth posting. There is very little Oiii signal, and I don’t know how to combing Ha + Sii. But not to give up, I thought I’d try LRGB, which after many processing attempts led to this image. I was warned that star with a SCT would not compare to my refractor…this image made that statement evident. Only after using Adam Blocks de-emphasis method did I kind of think they looked OK. Anyway, after 7 nights and 11.52 GBs of data, I’m so done with this target …but I had to post something, right?

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Status	Advanced success
Started	...
Astrometry.net job	5282438
PixInsight job	236O844PSTWT474RVU7SP3P0NDQBQRL7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h28m09s.513
RA (top/left)	05h26m55s.304
RA (top/right)	05h26m55s.356
RA (bottom/right)	05h29m23s.171
RA (bottom/left)	05h29m24s.259

Dec (center)	+34°25′16″.20
Dec (top/left)	+34°46′49″.95
Dec (top/right)	+34°03′42″.75
Dec (bottom/right)	+34°03′39″.16
Dec (bottom/left)	+34°46′45″.98

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IC417 a difficult spider

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