Messier 33 the Triangulum Galaxy from noisy data (Harri Heikkinen)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: M 33 · NGC 595 · NGC 598 · NGC 604 · Triangulum Galaxy · Triangulum Pinwheel

Messier 33 the Triangulum Galaxy from noisy data, Harri Heikkinen

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Messier 33 the Triangulum Galaxy from noisy data

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Messier 33 the Triangulum Galaxy from noisy data

This Messier 33 image is an attempt to rescue data which was captured already a year ago, but back then I had no idea how to process out the heavy noise. Decided to give it another go now - I'm still not fully happy with the outcome but it seems to be reasonable okay given the starting point.

Not sure what's changed in my imaging routine but nowadays I don't seem to suffer from noise this bad. Could the flats have been causing it? Anyhow, this image sets me a future reference point for targets with low surface brightness - plenty of room for improvement for sure.

Modified Canon 1100d @ ISO 1600. Lights: 98x180" + 20x120". Calibration: 40 flats, 60 darks, 20 dark flats, 20 bias.

Thanks for watching and clear skies!

"Nordish by nature"
Suburban Astrophotography
Imaged with APT
Beginners AP
Broadband under Bortle 7/8/9

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Status	Basic success
Started	...
Astrometry.net job	4043980
PixInsight job	n/a
PixInsight queue size	n/a
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Messier 33 the Triangulum Galaxy from noisy data

Messier 33 the Triangulum Galaxy from noisy data

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Messier 33 the Triangulum Galaxy from noisy data

Messier 33 the Triangulum Galaxy from noisy data

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