• NGC 6254 or Messier 10 in Ophiuchus
    • M10
    M10 in Ophiuchus
  • NGC 6254, M10, is a globular cluster of stars in Ophiuchus.
  • Hover over the picture for an annotated version
  • Date:  19 May and 27 June 2024
  • FOV:  cropped to 45' × 30'; the angular size of M10 is about 20'
  • Telescope:  Stellarvue SVX102T + SFFX-1 (737mm, f/7)
  • Guiding:  ZWO ASI120MM mini mono guide camera,
  • Stellarvue F050G 50mm guide scope
  • Computer:  ASIair pro Raspberry Pi
  • Mount:  iOptron CEM40
  • Camera:  ZWO ASI6200 Pro Cooled (-10°C) Color CMOS with gain 100, 19 May
  • ZWO ASI071 Pro Cooled (-10°C) Color CMOS with gain 90, 27 June
  • Pixel size:  3.76 μm
  • Resolution:  1.052 arcsec/pixel
  • Filter:  none 19 May and Baader semi-APO filter 27 June
  • Stacking:  forty-one 240 second frames using Pixinsight
  • Stacking:  ninety-one 240 second frames using Pixinsight
  • 41 frames 19 May 2024
  • 50 frames 27 June 2024
  • Calibration:  20 darks, 20 flats, 20 dark flats for each session
  • Total Time:  6 hours 4 minutes
  • Processing:  Pixinsight – DynCrop, SPCC, DBE, SPCC, BlurXT, NoiseXT,
  • HST, GHS, MStr, PMath MStr + GHS + HST, Sat, Scale
  • Location:  Darling Hill Observatory near Vesper, NY