There are three main types of astronomical telescopes - and these are divided into subgroups. They all have their different advantages and disadvantages and they are used in different areas of astronomy.
- Newtonian
- Gregorian
- Classical Cassegrain
- Ritchey-Chrétien
- Schiefspiegler
These types can be mounted on different types of mounts.
Altazimuth (ALT-AZ) Mounts
Equatorial mounts