• Messier 101 and NGC 5474 in Ursa Major
    • M101
  • Messier 101 and NGC 5474 in Ursa Major,
  • The Ursa Major Pinwheel Galaxy and
  • the peculiar galaxy NGC 5474
  • Date:  7 May 2022
  • FOV:  cropped to 68' × 45'; the angular size of M101 is about 29 × 27'
  • 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-two 240 second frames using Deep Sky Stacker
  • Total Time:  2 hours 48 minutes
  • Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXT, NoiseXT, GHS, Sat, Crop
  • Location:  Darling Hill Observatory near Vesper, NY