• The Boogeyman Nebula and M 78
    • Boogeyman Nebula
    Annotated image
  • Messier 78 is a bright nebula and LDN 1622 is a dark
  • nebula; both are found in the constellation Orion.
  • The red streak is part of Barnard's Loop.
  • Hover over the picture for an annotated version
  • Date:  18 and 19 September 2025
  • FOV:  Approximately 6° × 4°
  • 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:  2.593 arcsec/pixel
  • Frames:18 September 202530 × 300 seconds × 100 gain
  • 19 September 202531 × 300 seconds × 100 gain
  • Filter:  Optolong UV/IR cut filter
  • Stacking:  sixty-one 300 second frames using Pixinsight
  • Calibration:  20 darks, 20 flats, and 20 dark flats
  • Total Time:  5 hours and 5 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:  Cherry Springs State Park near Coudersport, PA  18 September 2025
  • Darling Hill Observatory near Vesper, NY  19 September 2025