Rosette Nebula (NGC2238) in SHO with RGB stars (Jacob Heppell)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: NGC 2237 · NGC 2238 · NGC 2239 · NGC 2246 · Rosette A · Rosette B · Rosette Nebula · The star 12Mon

Image of the day 01/09/2022

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Rosette Nebula (NGC2238) in SHO with RGB stars

Image of the day 01/09/2022

Powered byPixInsight

Rosette Nebula (NGC2238) in SHO with RGB stars

Well for the third year in a row, I've decided to image the Rosette nebula. But unlike previous years, I'm now armed with a QHY268M, 3nm Antlia narrowband filters, and a bit more astro wisdom in general (still with my 10" Quattro). So you could say I've been using Rosette as something of a milestone target to see how I've progressed in this hobby. Anyway, after spending the better part of Christmas eve processing my 46-odd hours of SHO-RGB data (that I kept), this is what I have to show for it. Unfortunately, my field of view isn't wide enough to get the whole nebula (extra half degree would help a lot) so there's some nice outer regions (H-alpha rich) that can't be seen. What this meant practically is that I wasn't willing to push the [OIII] to much or that's all you would see. Because my tone map approach to doing an SHO composite gives largely white stars, I decided to incorporate some RGB stars into the image.

Southern Hemisphere Astro

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Image of the day 01/09/2022

Rosette Nebula (NGC2238) in SHO with RGB stars

Image of the day 01/09/2022

Rosette Nebula (NGC2238) in SHO with RGB stars

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Image of the day 01/09/2022

Rosette Nebula (NGC2238) in SHO with RGB stars

Image of the day 01/09/2022

Rosette Nebula (NGC2238) in SHO with RGB stars

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