Barnard 175 (Alan Brunelle)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B175 · HD210401 · HD210640 · HD210884 · HD210902 · HD211319 · HD211867 · LBN 528 · LBN 531 · LDN 1217 · LDN 1219 · PK111+11.1 · VdB152

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Barnard 175

Revision title: Revision 4/2023

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Barnard 175

Revision title: Revision 4/2023

Revision 4/2023:

Data from an early attempt. Never had the time to get back to this and reminding myself of what I did, I cannot seem to replicate the issues I saw then. In any case, started with the same subs, did WBPP and then on from there with new approaches and tools. There is no question that more data is important for a better outcome. So hopefully someday I will get more data. Such is life in the PNW! Also, I had terrible halos, so a lot of work went into dealing with them. Still, the brightest star remains to be desired. Please do not shoot the artist!

All that said, the newer tools allowed for a very significant improvement in all aspects of this image from old data. The R. Croman tools are all critical. BXT and Blanshan's star reduction tools are also critical with star reduction. No way I get the background features to show without the abililty to reduce these stars without destructive influences that older methods created. Yet, even with reduced star intensity, I have lost many fewer stars that the first go 'round.

Old Description:
First try. Will revisit as this get higher in the sky at the darkest time of the night later this summer.

I struggled with what looked like a spherical aberration on only one side of my images. Could this be what Celestron claims to be an aberration due to adding an extra piece of glass in the optical train? Hence this is cropped. In any case, if I removed the filter, the whole image was round stars all around.

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Title: Revision 4/2023

Description: See under Description

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Status	Advanced success
Started	...
Astrometry.net job	7476584
PixInsight job	YF7B5TMWE76EP1DT3E40JT9DDCNVC40T
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h12m45s.59
RA (top/left)	22h08m42s.86
RA (top/right)	22h24m24s.58
RA (bottom/right)	22h17m20s.57
RA (bottom/left)	22h00m08s.66

Dec (center)	+70°19′55″.9
Dec (top/left)	+69°04′22″.10
Dec (top/right)	+69°29′21″.6
Dec (bottom/right)	+71°35′06″.2
Dec (bottom/left)	+71°07′27″.3

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Barnard 175

Revision title: Revision 4/2023

Barnard 175

Revision title: Revision 4/2023

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Barnard 175

Revision title: Revision 4/2023

Barnard 175

Revision title: Revision 4/2023

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