Thor's Helmet (NGC 2359)
- Date
- 31 December 2025
- Location
- Dark site, Bortle 3
- Telescope / lens
- SVBONY SV503 102ED + SV193 0.8x reducer-flattener
- Camera
- ZWO ASI533MC Pro
- Filters
- Antlia ALP-T (Ha + OIII, 5 nm)
- Integration
- 1 h (20 × 180 s)
- Processing
- AstroDiscovery, HOO bicolour
- Quality
- 57 / 100