• NGC 7497, a Galaxy in Pegasus
    • NGC 7497
    Annotated image
  • Located in Pegasus, the barred spiral galaxy
  • NGC 7497 appears lost in a sea of IFN or
  • integrated flux nebulosity.  NGC 7497
  • is 4.4' long and 61 Mly from us.
  • Hover over the image for an annotated view.
  • Date:  31 August 2025
  • FOV:  cropped to 60' × 40'
  • Telescope:  Celestron C14 SCT (3910mm, f/11)
  • Starizona HyperStar (731.41mm, f/1.9)
  • Guiding:  ZWO2600 MC Duo internal ASI220MM mini
  • Computer:  ASIair plus 256GB
  • Mount:  iOptron CEM120
  • Camera:  ZWO ASI2600 MC Duo Cooled (0°C) Color CMOS gain 100
  • Pixel size:  3.76 μm
  • Resolution:  1.060 arcsec/pixel
  • Filter:  Optolong UV/IR cut
  • Frames:  one hundred and nine 180 second subs
  • Total Time:  5 hours and 27 minutes
  • Calibration:  20 flats, 20 dark flats, and 20 darks
  • Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXT, NoiseXT → Linear
  • MStr, GHS, HST, PMath MStr + GHS + HST → Stars, Sat,
  • StarXT, MStr, GHS, HST, PMath MStr + GHS + HST → Starless, Sat,
  • PMath ~(~Stars*~Starless) → Blend, scale
  • Location:  Darling Hill Observatory near Vesper, NY