| Image Name: | Abel 1377, NGC 3888, 3889, 3898, 3913, 3916, 3921 | | Constellation: | Ursa Major | | Image Date: | 2025-05-31 | | Optics: | Astro-Tech AT72EDii Refractor | | Lenses: | Astro-Tech Flattener / Reducer 0.80 | | Camera: | ZWO ASI183MM PRO IMX183 | | Focal Ratio: | F/4.80 | | Focal Length: | 346mm | | ArcSec/Pixel: | 1.43 | | Exposures: | 4x180s | | Mount: | G11T | | Guided: | Yes | | Bortle Sky: | 3 | | Posted by: | ozarkastro | | Views: | 35 | | Labeled Image: | Annotated View |
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