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Rosette Nebula (Caldwell-49) in SHO with RGB stars, 



Rosette Nebula (Caldwell-49) in SHO with RGB stars

Imaging telescopes or lenses: Celestron RASA 11"

Imaging cameras: ASI6200MM

Mounts: Mesu Optics Mesu-Mount 200 Mk2

Guiding telescopes or lenses: TS-Optics Guidescope 328/80

Guiding cameras: ZWO ASI 120mm-mini

Software: Stark Labs PHD2  ·  NINA - Nighttime Imaging ‘N’ Astronomy  ·  PixInsight PixInshight Core 1.8 Ripley  ·  Photoshop CC

Filters: Baader Planetarium LRGB 50.4 mm  ·  Baader SII 50.4mm High Speed  ·  Baader OIII 50.4mm High Speed  ·  Baader Ha 50.4mm High Speed

Dates:March 1, 2021

Frames: 207x300"

Integration: 17.2 hours

Avg. Moon age: 17.13 days

Avg. Moon phase: 93.78%

Basic astrometry details job: 4301122

Resolution: 6108x6108

Data source: Backyard


After already imaging the Rosette Nebula last year, I have always been wanting to do a better version of it.

The data was gathered in quite clear, moon-free nights and the result was visible in the integrated files. I was keen on keeping the details while processing this image, as I do not get those nights very often where I am at.

Like always, I was struggling with the right level of saturation and keeping some opacity to the nebula. I hope I managed to settle for the right levels.