• NGC 891 in Andromeda
    • NGC 891 the Outer Limits Galaxy
    Annotated image
  • NGC 891, the Outer Limits Galaxy, is an edge-on spiral galaxy in Andromeda.
  • To count over 100 galaxies, click here for a full-frame 4860 × 3240 photo.
  • Hover over the picture for an annotated version
  • Date:  6 November 2021
  • FOV:  approximately 68' × 45'; the apparent dimension of NGC 891 is about 13.5' × 2.5'
  • Telescope:  Stellarvue SVX102T + SFFX-1 flattener (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 (0°C) Color CMOS with gain 180
  • Filter:  none
  • Stacking:  Forty-nine 200 second frames using Deep Sky Stacker
  • Total Time:  2 hours 43 minutes 20 seconds
  • Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXT, NoiseXT, DynCrop,
  • HST, GHS, MStr, PMath MStr + GHS + HST, HDR8,
  • Sat, Scale
  • Location:  Darling Hill Observatory near Vesper, NY