🌌 Object Information

• Name/Designation: Diamond Ring Nebula (Abell 33)

• Object Type: Planetary Nebula

• Constellation: Hydra

• Distance from Earth: ~2,700 light-years

• Apparent Magnitude: ~12.2

• Angular Size: ~4 arcminutes

📅 Imaging Info

• Date: April 18 & 25, May 2-3 & 30, 2024

• Location: Athens, Greece

• Frames: Luminance – 92 × 60″ exposures (1h 32m)

  Narrowband – 384 × 60″ exposures (6h 24m)

  Total: (7h 56m)

• Camera Settings: Gain 101 | Temperature: -5 °C

• Bortle Scale: 8/9 (City sky)

🔭 Equipment & Guiding

• Imaging Telescope: Sky-Watcher Explorer 130PDS

• Imaging Camera: ZWO ASI533MC Pro

• Mount: Sky-Watcher EQ5 Pro

• Filter: Baader UV/IR Cut Luminance 2″ & Optolong L-eXtreme 1.25″

• Accessory: Baader 2″ MPCC Mark III Newton Coma Corrector

• Guide Scope: Artesky 32mm Mini Guide Scope

• Guide Camera: ZWO ASI120MM Mini

🛠️ Software

• Astro Photography Tool (APT)

• PHD2 Guiding

• PixInsight

• BlurXTerminator

• NoiseXTerminator

• StarXTerminator