Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  M 51  ·  NGC 5169  ·  NGC 5194  ·  NGC 5195  ·  NGC 5198  ·  Whirlpool galaxy
M51 - Wirlpool Galaxy - IRIS version, Mathieu Bertholet
M51 - Wirlpool Galaxy - IRIS version
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M51 - Wirlpool Galaxy - IRIS version

M51 - Wirlpool Galaxy - IRIS version, Mathieu Bertholet
M51 - Wirlpool Galaxy - IRIS version
Powered byPixInsight

M51 - Wirlpool Galaxy - IRIS version

Equipment

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Acquisition details

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Description

New version of same capture processed only with IRIS from Christian Buil

- Global registration

- Arithmethic substraction of Darks and Bias

- Arithmetic addition of the sequence.

Same process for 35 x 1600ISO @ 30 s. and 19 x 3200ISO @30 s.

Results for each process stacked in Photoshop :

- Opacity

- Levels (many)

- Curves (many)

- RGB (some)

- Crop

- Green removal with HLVG plugin

Noize Management with Topaz Denoize.

I'm very happy with the version compared to the very short exposure time.

Comments

Sky plot

Sky plot

Histogram

M51 - Wirlpool Galaxy - IRIS version, Mathieu Bertholet