Sky-Watcher
Sky-Watcher 8" GoTo Collapsible Dobsonian Telescope
Best price $1625 · 203mm aperture · $/mm 8.0
$1625 on Amazon ↗At $8.0 per mm of aperture, this is dearer per millimetre than the typical reflector at $4.31/mm — you're paying for something other than raw aperture.
Specs
| Aperture | 203 mm |
|---|---|
| Focal length | 1200 mm |
| Focal ratio | f/5.9 |
| Type | Reflector |
| Mount | GoTo |
| Resolving power | 0.57″ (Dawes limit) |
| Limiting magnitude | 14.0 |
| Max useful magnification | 406x |
| Light gathering | 841x the naked eye |
| Optical design | Dobsonian |
| Best for | Beginner, Visual |
Resolving power, limiting magnitude, maximum useful magnification and light grasp are derived from the aperture — the standard formulas, not marketing claims.
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