From SkyInsight
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There are various types of telescopes:
- Newtonian
- Refractors
- Achromatic Refractor
- Apochromatic Refractor
- Cassegrain or Catadiopric Telescopes
- Schmidt-Cassegrain (SCT)
- Maksutov-Cassegrain
- Ritchey-Chrétien (RCT)