• NGC 253, The Sculptor Galaxy
    • NGC 253
    NGC 253 annotated
  • The Silver Dollar Galaxy, 11.7 Mly from us, is a starburst galaxy
  • due to the large amount of star formation occuring there.
  • Hover over the picture for an annotated version
  • Date:  2 and 7 November 2024
  • FOV:  cropped to 54' × 36'; NGC 254 is about 27.5' × 6.8'
  • Telescope:  Orion 127mm Mak-Cass (1381mm, nominally 1540mm, f/12.1)
  • Guiding:  ZWO ASI120MM mini mono guide camera,
  • SVBony SV165 Mini 40mm f/4 guide scope
  • Computer:  ASIair pro Raspberry Pi
  • Mount:  ZWO AM5
  • Camera:  ZWO ASI071MC Pro Cooled (-10°C) Color CMOS with gain 90
  • Pixel size:  4.78 μm
  • Resolution:  0.714 arcsec/pixel
  • Frames:2 November 2024  60 × 240 seconds
  • 7 November 2024  35 × 240 seconds
  • Filter:  none
  • Stacking:  ninety-five 240 second frames in PixInsight
  • Calibration:  20 darks, 20 flats, and 20 dark flats per session in PixInsight
  • Total Time:  6 hours 20 minutes
  • Processing:  PixInsight – DynCrop, SPCC, DBE, SPCC, BlurXT, NoiseXT,
  • HST, GHS, MStr, PixelMath HST + MStr + MStr → Add,
  • HDRMST5iLm, Masked Sat, Scale
  • Location:  Darling Hill Observatory near Vesper, NY