• NGC 2099 or Messier 37 in Auriga
    • M37 in Auriga
    Annotated image
  • NGC 2099 (Messier 37), is the brightest open cluster in Auriga.
  • The bright red star, V440 Aurigae, below and left of center, is a red
  • supergiant approximately 1.2 solar masses and 60 solar diameters.
  • Hover over the picture for an annotated version
  • Date:  20 March 2023
  • FOV:  approximately 68' × 45'; the angular size of M37 is about 24'
  • Telescope:  Stellarvue SVX102T + SFFX-1 flattener (714mm, f/7)
  • 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 90
  • Filter:  Baader Light Pollution Moonglow filter with IR cut
  • Stacking:  Sixteen 240 second frames using Pixinsight
  • Total Time:  1 hour and 4 minutes
  • Processing:  Pixinsight – SPCC, DBE, BlurXT, NoiseXT, GHS, HST, Mask,
  • PMath GHS + HST + Mask, Sat, DynCrop/Scale
  • Location:  Kopernik Observatory near Vestal, NY