• Messier 1 in Taurus, the Crab Nebula
    • M1 in Taurus, Crab Nebula
    Annotated image
  • Messier 1, M1 or the Crab Nebula, is a supernova remnant
  • that is being shaped by the winds from a pulsar.
  • Hover over the image for an annotated view.
  • Date:  14 December 2023
  • FOV:  approximately 30' × 20'; the angular size of M1 is about 7' × 5'
  • Telescope:  Orion 180mm Mak-Cass (2511mm, 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:  ZWO AM5
  • Camera:  ZWO ASI071MC Pro Cooled (-10°C) Color CMOS gain 90
  • Pixel size:  4.78 μm
  • Resolution:  0.393 arcsec/pixel
  • Filter:  none
  • Stacking:  Seventy 240 second frames using Pixinsight
  • Total Time:  4 hours 40 minutes
  • Calibration:  20 darks, 20 flats, and 20 dark flats
  • Processing:  Pixinsight – SPCC, DBE, BlurXT, NoiseXT, GHS, HST, MStr,
  • PixelMath MStr + GHS + HST, HDR, Sat, Scale
  • Location:  Darling Hill Observatory near Vesper, NY