LBN515_RGB_Grad_SPCC_BlurX_HT_Curves_NoiseX_StarsBackIn
From Astrobin: LBN 515 is a faint, complex dark nebula located in the constellation Cepheus. It sits in a rich, dusty region of the sky and is frequently captured by astrophotographers alongside other famous nearby targets like the Iris Nebula (NGC 7023), the Dark Shark Nebula (LDN 1235), and VdB 152
15/13/12 x 10 min each of RGB
Camera: Apogee U16M (16803) w Gen II Astrodon RGB and H-Alpha
Scope: 12.5" Planewave CDK
Mount: Paramount ME
Guiding SBIG ST402ME and Astrodon MMOAG
RGB processing in PixInsight. GradientCorrection, SPCC, BlurX then StarX. To the Stars-Only image just curves and a saturation boost. To the starless version, Curves, histogram transformation, LHE. Then Pixel Math to add the stars back.
Photoshop: Some cleanup of sat trails, sq.crop, save-for-web
Lucknow, Ontario
June 2026