M74 - 21 Jan 2017 (Geof Lewis)

Celestial hemisphere: Northern · Constellation: Pisces (Psc) · Contains: M 74 · NGC 628

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M74 - 21 Jan 2017

Revision title: Reprocessed using PixInsight.

Powered byPixInsight

M74 - 21 Jan 2017

Revision title: Reprocessed using PixInsight.

My first attempt at the M74 galaxy. A night of more issues than I care to remember resulting in almost half of the data being unusable. The L data is not too bad, but the little RGB data was very poor. I was hoping to get another chance to add better data, but that will be for another year so I tried to see what I could extract from what I have. I think I processed the hell out of it.....

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C

Title: Reprocessed using PixInsight.

Description: Another reprocess one of my very old, very poor images, where the data was extremely thin and poor. I captured just 3x10m each RGB and 7x10m L, using MaximDl back in Jan 2017, but what data I had was covered in gradients and vignetting. PI did another excellent job dragging something respectable from the data, I even see some colour in the galaxy and stars, where there was virtually none in my previous attempts at processing. The data calibration I did back in 2017 left a strong bad column artefact to the right of the galaxy, but that is largely lost in the dark background.

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Status	Advanced success
Started	...
Astrometry.net job	9447949
PixInsight job	QCS84I5TTTZMM3F4H4QQTR7ARD6LNVT9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h36m44s.627
RA (top/left)	01h36m02s.937
RA (top/right)	01h37m24s.868
RA (bottom/right)	01h37m26s.494
RA (bottom/left)	01h36m04s.450

Dec (center)	+15°46′57″.95
Dec (top/left)	+15°40′02″.76
Dec (top/right)	+15°39′33″.28
Dec (bottom/right)	+15°53′53″.30
Dec (bottom/left)	+15°54′22″.21

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M74 - 21 Jan 2017

Revision title: Reprocessed using PixInsight.

M74 - 21 Jan 2017

Revision title: Reprocessed using PixInsight.

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M74 - 21 Jan 2017

Revision title: Reprocessed using PixInsight.

M74 - 21 Jan 2017

Revision title: Reprocessed using PixInsight.

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