• NGC 2437 or Messier 46 in Puppis
    • M44
    Annotated image
  • Open cluster M46 with planetary nebula NGC 2438 in Puppis.
  • Hover over the image for an annotated view.
  • Date:  17 April and 17 March 2022
  • FOV:  approximately 60' × 40'; M46 is approximately 23'
  • Telescope:  Stellarvue SVX102T + SFFX-1 flattener (714mm, f/7) April 2022
  • Stellarvue SVX102T + SFFR.74 reducer (535mm, f/5.25) March 2022
  • Guiding:  ZWO ASI120MM mini mono guide camera,
  • Stellarvue F050G 50mm guide scope
  • Computer:  ASIair pro Raspberry Pi
  • Mount:  iOptron CEM40
  • Camera:  ZWO ASI071MC Pro Cooled (-10°C) Color CMOS
  • gain 90 April 2022
  • gain 240 March 2022
  • Filter:  Baader Light Pollution Moonglow filter with IR cut
  • Stacking:  two data sets using Deep Sky Stacker
  • thirteen 240 second frames 17 April 2022
  • twenty-six 180 second frames 17 March 2022
  • Total Time:  2 hours and 10 minutes
  • Processing:  Pixinsight – StarAlignment, cropped
  • PixelMath ~(~17Mar2022*~17April2022) → XSIF,
  • SPCC, DBE, SPCC, BlurXT, NoiseXT,
  • GHS, HST, MStr, PMath MStr + GHS + HST → Stars, Sat
  • StarXT, GHS, HST, MStr, PMath MStr + GHS + HST → Starless,
  • HDRMSTPhLm5, Sat
  • PixelMath ~(~Starless*~Stars), Scale
  • Location:  Darling Hill Observatory near Vesper, NY on April 2022
  • My driveway in DeWitt, NY on March 2022