• HFG 1 and Abell 6 in Cassiopeia
  • HFG 1 in Cassiopeia
    Annotated image
  • HFG1, above right of center, and Abell 6, just below center,
  • are extremely faint.  They are planetary nebulae that formed
  • when stars approximately the size of our sun died.
  • Hover over the image for an annotated view.
  • Date:  10, 29 September, and 2, 5 October 2024
  • FOV:  approximately 2° 30' × 1° 40'
  • Telescope:  Stellarvue SVX102T + SFFR.74 reducer/flattener
  • (522.01mm, nominally 528mm, f/5.18)
  • 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 to -10°C 10 Sept 2024
  • ZWO ASI6200MC pro cooled to -10°C 29 Sept, 2, and 5 Oct 2024
  • Pixel size:  4.78 μm on 10 Sept 2024 and 3.76 μm on 29 Sept, 2,and 5 Oct 2024
  • Resolution:  1.884 arcsec/pixel 10 Sept 2024
  • 1.475 arcsec/pixel 29 Sept, 2, and 5 Oct 2024
  • Frames:10 September 202498 × 240 seconds × 90 gain,
  • 29 September 2024102 × 240 seconds × 300 gain,
  • 2 October 202420 × 240 seconds × 300 gain,
  • 5 October 2024130 × 240 seconds × 300 gain
  • Filter:  Baader Semi-Apo filter 10 September 2024,
  • Optolong L-Ultimate filter 29 September, 2, and 5 October 2024
  • Stacking:  Pixinsight – ninety-eight 240 second frames → Stars
  • two hundred and fifty-two 240 second frames → Nebulae
  • Total Time:6 hours 32 minutes → Stars,
  • 16 hours 48 minutes → Nebulae
  • 23 hours 20 minutes total
  • Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXT, NoiseXT,
  • Linear → HST, GHS, MStr → Stars, Sat
  • Linear → StarXT → Starless, GHS → Nebulae
  • PixelMath max(PM, Nebulae), DynCrop/Scale
  • Location:  Darling Hill Observatory near Vesper, NY on 10 September 2024,
  • Crystal Lake near Redwood, NY on 29 September 2024,
  • Stony Creek Boat Launch near Henderson, NY on 2 October 2024,
  • Cherry Springs State Park near Coudersport, PA on 5 October 2024