Carina Nebula (Peter Knight)

Celestial hemisphere: Southern · Constellation: Carina (Car) · Contains: Carina Nebula · NGC 3372 · eta Car Nebula

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Carina Nebula

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Carina Nebula

I shot this OSC image back in May 2021 but my processing skills at the time were not good enough to bring out the reds. Poor weather (and Covid lockdown) has given me the chance to research colour processing techniques and have another go at the data.
I've been experimenting with manipulating channel data in Photoshop, and stumbled upon the Calculations tool. I've not seen this tool referenced by anyone on-line but it provides what appears to be a basic and user-friendly version of what PixInsight offers (PixInsight appears way too complicated to me). Anyhow, this image (after initial stretching and levels) starts from R as 1.5xR, G as G and B as G+B. I colour balanced from there using layer masks to separately process the nebulosity and background.
Stars were extracted following the initial stretch and levels and overlaid over the processed nebulosity.

Southern Hemisphere Astro
New Zealand Astrophotography

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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Unknown

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Status	Basic success
Started	...
Astrometry.net job	4936330
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Carina Nebula

Carina Nebula

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Carina Nebula

Carina Nebula

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