• Messier 27 in Vulpecula, the Dumbell Nebula
    • M27 in Vulpecula, the Dumbell Nebula
    Annotated image
  • NGC 6853, M27, the Dumbell Nebula in Vulpecula, is a bright
  • planetary nebula that is easy to find in small telescopes.
  • Hover over the image for an annotated view.
  • Date:  2 June 2025
  • FOV:  cropped to 27' × 18'; the angular size of M27 is about 8' × 5.6'
  • Telescope:  Celestron C14 SCT (3910mm, f/11`)
  • Starizona SCT Coma Corrector/Reducer (2668.5mm, f/7.5)
  • Guiding:  ZWO ASI120MM mini guide camera, ZWO2600 Duo
  • Computer:  ASIair pro Raspberry Pi
  • Mount:  iOptron CEM120
  • Camera:  ZWO ASI2600MC Pro Cooled (0°C) Color CMOS with gain 100
  • Pixel size:  3.76 μm
  • Resolution:  0.291 arcsec/pixel
  • Filter:  Optolong UV/IR cut
  • Stacking:  twenty-four 300 second frames using PixInsight
  • Total Time:  2 hours
  • Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXT, NoiseXT → Linear
  • HTS, GHS, MStr, PixelMath MStr + GHS + HST → Stars,
  • Linear, StarXT, HTS, GHS, MStr,
  • PixelMath MStr + GHS + HST → Starless, HDRMST76PhLm
  • PixelMath ~(~Starless*~Stars) → Blend, Sat, DynCrop/Scale
  • Location:  Darling Hill Observatory in Vesper, NY