Equipment
道布森
Dobsonian
A large reflector on a simple alt-az rocker box.
An 8-inch Dob weighs about 20 kg and is the best deep-sky value.
Related terms
- Tracking — Moving the gear with the sky so stars stay round.
- Collimation — Aligning a reflector's mirrors.
- Cool-down — A scope reaching ambient temperature.
- Polar alignment — Pointing an equatorial mount at the celestial pole.