• NGC 2237 in Monoceros
  • NGC 2237, the Rosette Nebula
    Annotated image
  • NGC 2237 is an open cluster in Monoceros surrounded by nebulosity.
  • Hover over the picture for an annotated version
  • Date:  14 December 2021 and 22 March 2022
  • FOV:  approximately 150' × 100'; NGC 2237 is about 1° 24"
  • Telescope:  Stellarvue SVX102T + SFFR.74 reducer (535mm, f/5.25)
  • 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 with gain 240
  • Filters:  Baader Light Pollution Moonglow filter with IR cut (5 frames) and
  • Optolong L-eNhance dual narrowband (21 frames)
  • Stacking:  Five 200 second frames (December) and twenty-one 240 second
  • frames (March) using Deep Sky Stacker
  • Total Time:  1 hour 40 minutes 40 seconds
  • Processing:  Pixinsight – SPCC, DBE, BlurXT, NoiseXT, HST, GHS, MaskStr,
  • PMath add, HDR9, StarXt, Stars, Starless, PMathSB, Sat, Scale
  • Location:  Darling Hill Observatory near Vesper, NY