Accessories
Vital Accessories
Viewfinder: Allows targeting of the scope at a point. Without this, it would be very difficult to point the scope at what you want to see.
Eyepiece: Collects light from the primary or secondary mirrors and magnifies it.
Mount: Supports the telescope.
Non-Vital Accessories
Filter: Makes features of celestial objects more prominent.
Photo-adapter and T-adapter: Allows astrophotography. T-adapter connects photo-adapter to camera. Photo-adapter connects telescope to T-adapter.
Photo adapters T-adapter
CCD: Charged Coupled Device. Electronic camera. (below is a CCD chip)
Colaminater:
Assists to align a telescopes mirrors.
Chart:
Gives information about positions of celestial objects. It is very important when trying to locate an object too dim to see with the naked eye.