| Image Name: | M42 - 4.5" Refractor - Ha | | Constellation: | Orion | | Image Date: | 2026-01-20 | | Optics: | Astro-Tech AT115EDT Refractor | | Lenses: | Astro-Tech Flattener / Reducer 0.80 | | Camera: | ZWO ASI2600MM PRO IMX571 | | Focal Ratio: | F/5.60 | | Focal Length: | 648mm | | ArcSec/Pixel: | 1.20 | | Exposures: | 2x600s, 2x360s, 6x300s, 2x180s | | Mount: | G11T | | Guided: | Yes | | Bortle Sky: | 3 | | Note: | 1,350 LY | | Posted by: | ozarkastro | | Views: | 14 |
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