• NGC 7078 or Messier 15, a bright globular in Pegasus
    • M15
    M15 in Pegasus
  • NGC 7078, M15, a globular cluster in Pegasus
  • with a very condensed core.
  • Note the Integrated Flux Nebulosity (IFN).
  • Hover over the picture for an annotated version
  • Date:  6 and 7 July 2024
  • FOV:  cropped to 60' × 40'; the angular size of M15 is about 18'
  • Telescope:  Stellarvue SVX102T + SFFX-1 (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
  • Pixel size:  4.78 μm
  • Resolution:  1.333 arcsec/pixel
  • Filter:  none
  • Stacking:  one hundred and twenty-three frames using PixInsight HDRComp
  • 40 frames × 15 sec
  • 30 frames × 60 sec
  • 15 frames × 240 sec end of 6 July 2024 session
  • 38 frames × 240 sec end of 7 July 2024 session
  • Total Time:  4 hours 12 minutes
  • Processing:  Pixinsight – HDRComp, SPCC, DBE, SPCC, BXT, NXTm,
  • HST, GHS, MStr, PMath GHS + MStr + HST → PM,
  • GHSHP, SatBM, SCNRg5, Scale
  • Location:  Cherry Springs State Park near Coudersport, PA