Sky-Watcher
Sky-Watcher 16" GoTo Collapsible Dobsonian Telescope
Best price $5200 · 406mm aperture · $/mm 12.81
$5200 on Amazon ↗At $12.81 per mm of aperture, this is dearer per millimetre than the typical reflector at $4.49/mm — you're paying for something other than raw aperture.
Specs
| Aperture | 406 mm |
|---|---|
| Focal length | 1800 mm |
| Focal ratio | f/4.4 |
| Type | Reflector |
| Mount | GoTo |
| Resolving power | 0.29″ (Dawes limit) |
| Limiting magnitude | 15.5 |
| Max useful magnification | 812x |
| Light gathering | 3364x the naked eye |
| Optical design | Dobsonian |
| Highest magnification | 812x |
| Dawes limit | 0.29 arcseconds |
| Eyepiece fitting | 2" Nosepiece |
| Best for | 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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