• Weinberger 3-1 in Hercules
    • We 3-1 in Hercules, a planetary nebula
    We 3-1 in Hercules
  • We 3-1, or PK 044+10.1, is a very faint
  • planetary nebula in Hercules.
  • Hover over the picture for an annotated version
  • Date:  11 September and 20 August 2026
  • FOV:  15' × 10'
  • Rotation:  0.002°
  • Telescope:  SVBony MK127 Mak-Cass (nominally 1500mm,
  • calculated 1450.21mm, f/11.4)
  • Guiding:  ZWO ASI120MM mini mono guide cameras,
  • SVBony SV165 Mini 40mm f/4 guide scopes
  • Computer:  ASIair plus
  • Mount:  ZWO AM5 harmonic drive
  • Cameras:  ZWO ASI071mc Pro (-10°C) at 90 gain
  • Pixel size:  4.78 μm
  • Resolution:  0.693 arcsec/pixel
  • Frames:  54 × 300 seconds, Optolong UV/IR cut filter, 20 August
  • 32 × 300 seconds, Optolong L-eNhance filter, 11 September
  • Stacking:  eighty-six 300 second frames using Pixinsight
  • Total Time:  7 hours 10 minutes
  • Processing:  Pixinsight
  • preprocessing → L-eNh×32 and UV/IR×54
  • L-eNh:  MGC, DBE, SPCC, BXT, NXT, StarXT → LinearLeNh
  • UV/IR:  MGC, DBE, SPCC, BXT, NXT → LinearUVIR
  • LinearUVIR:  StarXT → LinearUVIR_StarXT
  • LinearUVIR:  MultiAdaptiveStretch → Stars
  • PixelMath ~(~LinearLeNh*~LinearUVIR_StarXT) →
  • LinearStarless, HTS, GHS, MStr, MAS,
  • PixelMath 0.25*(HTS + GHS + MStr + MAS) → Starless
  • PixelMath ~(~Stars*~Starless), DynCrop/Scale
  • Location:  Stony Creek State Boat Launch near Henderson, NY, 20 August and
  • Darling Hill Observatory near Vesper, NY, 11 September