• NGC 7089 or M2 in Aquarius
    • B72
    M2 in Aquarius
  • NGC 7089, M2, is a tight globular cluster with a dense
  • core located in the constellation Aquarius.
  • M2 is one of the largest globular clusters.
  • It contains 150 000 stars and
  • is 55 kly from us.
  • Hover over the picture for an annotated version
  • Date:  26 September 2024
  • FOV:  cropped to 60' × 40'; the angular size of M2 is about 16'
  • Telescope:  Stellarvue SVX102T + SFFX-1 (736.97mm, nominally 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 ASI6200MC Pro Cooled (-10°C) Color CMOS with gain 100
  • Pixel size:  3.76 μm
  • Resolution:  1.052 arcsec/pixel
  • Filter:  Optolong UV-IR
  • Stacking:  forty-four 240 second frames using Pixinsight
  • Total Time:  2 hours 56 minutes
  • Processing:  Pixinsight – DynCrop, SPCC, DBE, SPCC,
  • BlurXT, NoiseXT; HST, GHS, MStr → PM,
  • PMath add GHS + MStr + HST → Blend, Sat, Scale
  • Location:  Stony Creek Boat Launch near Henderson, NY