• IC 4604, Rho Ophiuchus Cloud Complex
    • Rho Ophiuchus
  • M4 and Antares in Scorpius
  • with Rho Ophiuchus.
  • Date:  9 May 2023
  • FOV:  4.5° × 3.0°; the angular size of M4 is about 23'
  • Telescope:  Askar FRA300 pro (300mm f/5 Petzval)
  • Guiding:  ZWO ASI385MC planetary camera,
  • ZWO 30F4 30mm mini guide scope
  • Computer:  ASIair pro Raspberry Pi
  • Mount:  iOptron CEM40
  • Camera:  Canon EOS T6s with iso 1600
  • Filter:  Internal Camera UV/IR cut
  • Stacking:  Twelve 240 second frames using Pixinsight
  • Total Time:  48 minutes
  • Processing:  Pixinsight – SPCC, DBE, SPCC, BlurXTerminator, NoiseXTerminator,
  • GHS with HP (ProtectHighlights), GHS + Sat, DynCrop/Scale
  • Location:  Darling Hill Observatory near Vesper, NY