🌌 Object Information

• Name/Designation: Thor’s Helmet (NGC 2359) 

• Object Type: Emission Nebula

• Constellation: Canis Major

• Distance from Earth: ~11,960 light-years

• Apparent Magnitude: ~11.5

• Angular Size: ~8 arcminutes (~0.13°)

📅 Imaging Info

• Date: March 5-7 & 9-21, 2025

• Location: Athens, Greece

• Frames:  Luminance: 63×60″ (1h 3m)
  Narrowband: 565×60″ (9h 25m) – Total: 10h 28m

• 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