• NGC 4594 or Messier 104 bordering Corvus and Virgo
    • M104
    Annotated image
  • NGC 4594 or Messier 104 on the borders of Corvus
  • and Virgo, The Sombrero Galaxy is a peculiar
  • elliptical galaxy with a conspicuous dust lane
  • Hover over the picture for an annotated version
  • Date:  7 May 2022
  • FOV:  cropped to 30' × 20'; the angular size of M104 is about 9 × 4'
  • 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 240
  • Filter:  Baader Light Pollution Moonglow filter with IR cut
  • Stacking:  Forty-six 240 second frames PixInsight
  • Calibration:  20 darks, 20 flats, 20 dark flats using PixInsight
  • Total Time:  3 hours 4 minutes
  • 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, HDRMST5PhLm
  • PixelMath ~(~Starless*~Stars) → Blend
  • Location:  Darling Hill Observatory near Vesper, NY