Lynd's
Dark Nebula 753 in Sagitta - HOO+RGB
LDN753
is the centre of a host of LDN, LBN and Sharpless targets all within
the small constellation of Sagitta. A newly discovered arc in OIII was
what I was hoping to capture.
18/18/18 x 10 min each of RGB, 22x20 min Ha, 32x20 min OIII
Camera: Moravian G4 (16803) w Gen II Astrodon filters
Scope: Astrophysics AP155EDF Refractor w Focus Boss II
Mount: Paramount MX
Guiding SBIG ST402ME attached to a Borg 60mm guidescope
RGB and Ha and OIII processing in PixInsight
RGB: SPCC, BlurX, NoiseX, StarX, Curves, HT, masked Saturation Boost
(via
Curves), Stars Back In
Ha and OIII: BlurX, NoiseX, StarX, Curves, HT then combined the Ha and
OIII via Foraxx script.
Photoshop: Layered the RGB over the Foraxx narrowband data using
Screen. Some tweaks and a slight crop.
Click on the image to see ~ 2x and to re-size it for your browser.
Lucknow, Ontario
June 2025
BTW - an amazing version
that inspired me to try this is by Bray Falls and can be seen here:
https://app.astrobin.com/i/v4znmz?r=0
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