• NGC 3351 or Messier 95 in Leo
    • M95
    Annotated image
  • Messier 95 is a barred spiral galaxy with a ring around the bar.
  • 33 Mly from us, M95 is about 80.13 kly across.
  • Hover over the image for an annotated view.
  • Date:  22 April 2025
  • FOV:  approximately 20' × 13' 20"; the apparent size
  • of M95 is about 7.4′ × 5.0′
  • Rotation:  −89.936°
  • Telescope:  Orion 180mm Mak-Cass (2590mm, f/14, nominally 2700mm, f/15)
  • Guiding:  ZWO ASI120MM mini mono guide camera,
  • SVBony SV165 Mini 40mm f/4 guide scope
  • Computer:  ASIair pro Raspberry Pi
  • Mount:  iOptron CEM40
  • Camera:  ZWO ASI071MC Pro Cooled (-10°C) Color CMOS gain 90
  • Pixel size:  4.78 μm
  • Resolution:  0.381 arcsec/pixel
  • Filter:  none
  • Frames:  sixty-three 240 second subs
  • Total Time:  4 hours and 12 minutes
  • Calibration:  20 flats, 20 dark flats, and 20 darks
  • Processing:  Pixinsight – DBE, BlurXT, NoiseXT, SPCC → Linear
  • MStr, GHS, HST, PMath MStr + GHS + HST → Stars, Sat,
  • StarXT, MStr, GHS, HST, PMath MStr + GHS + HST → Starless,
  • HDRMST866PhLm, Sat, PMath ~(~Stars*~Starless) → Blend, scale
  • Location:  Darling Hill Observatory near Vesper, NY