200-300 mm Dobsonian guides
7 guides, newest first. Each guide is written for this class of instrument.
- Collimating a 200-300 mm Dobsonian: Step-by-Step Alignment Guide14 Oct 2026
- M25 Star-Hop Guide for 200-300 mm Dobsonians14 Oct 2026
- M4 Globular Cluster in Scorpius: Best Timing for a 200-300 mm Dobsonian14 Oct 2026
- Black Eye Galaxy M64 with a 200-300 mm Dobsonian: What to Expect at the Eyepiece14 Oct 2026
- M55 Star-Hop Guide for a 200-300 mm Dobsonian14 Oct 2026
- M78 (NGC 2068) Reflection Nebula: Best Timing with a 200-300 mm Dobsonian14 Oct 2026
- Common Mistakes Observing M13 with a 200-300 mm Dobsonian2 Oct 2026