This astroimage includes the blue-colored reflection nebula IC4604 surrounding the star system Rho Ophiuchi in the Ophiuchus constellation (on the right side), as well as two reflection nebula (IC4603 and IC4605) in the Scorpius constellation. These are part of a large complex of molecular clouds located only 400 light years from Earth. From my country, this sky region reaches a maximum altitude of only 25° during May-June.
Equipment
Telescope William Optics Fluorostar 91 with FLAT6A III x0.8 Reducer/Adjustable Field Flattener (effective focal length 432 mm); imaging camera ZWO ASI294MM Pro; guiding camera ZWO ASI174MM Mini; mount iOptron CEM40EC; filters Chroma LRGB; guiding and imaging control ZWO AsiAir Plus; ZWO EAF Electronic Auto Focuser; ZWO EFW; ZWO Off Axis Guider; Lacerta Flatfieldbox 150mm. Software Pleiades Astrophoto PixInsight 1.8.9 Ripley; Russell Croman Astrophotography StarXTerminator; Russell Croman Astrophotography NoiseXTerminator.
Frames: Luminance 34×120″ (1h 8′); Red 16×180″ (48′); Green 19×180″ (57′); Blue 20×180″ (1h), all at gain: 120, cooled at -15°C bin 1×1. Total integration: 3 h 53 min.
Imaged at May 24, 2022 from observation point Rudine near Skopje city.
