LDN 1622, The Boogeyman Nebula, is a dark
nebula found in the constellation Orion.
Hover over the picture for an annotated version
Date: 18 January 2026
FOV: Approximately 4° 30' × 3°
Rotation: 179.816°
Telescope: Askar FRA300 pro (300mm f/5 Petzval)
Guiding: ZWO ASI120MM mini mono guide camera,
SVBony SV165 Mini 40mm f/4 guide scope
Computer: ASIair pro Raspberry Pi
Mount: ZWO AM5 mount
Camera: ZWO ASI6200MC Pro Cooled (-10°C) Color CMOS
Pixel size: 3.76 μm
Resolution: 2.591 arcsec/pixel
Frames:18 January 202669 × 300 seconds × 100 gain
Filter: Optolong UV/IR cut
Stacking: sixty-nine 300 second frames using Pixinsight
Calibration: 20 darks, 20 flats, and 20 dark flats
Total Time: 5 hours 45 minutes
Processing: Pixinsight – SPPC, DBE, SPCC, BlurXT, NoiseXT, DynCrop → Linear
MStr, GHS, HST, PMath MStr + GHS + HST → Stars, Sat,
StarXT, MStr, GHS, HST, PMath MStr + GHS + HST → Starless,
HDR64PhLm, Sat, PMath ~(~Stars*~Starless) → Blend, scale
Location: Corazones Draw Ranch near Terlingua, TX
