beginner question

[abhinavk]

is there much difference between a reflector and dobsonian of same aperture?

 

[TerryMcK]

A reflector is the telescope itself whereas a Dobsonian is a type of Alt Az mount that normally carries the reflecting telescope.

[abhinavk]

so which one is better?

 

[TerryMcK]

If you buy a Dobsonian telescope it is actually has a reflector telescope (also known as a Newtonian Reflector after the inventor Sir Isaac Newton) in the mount.

The mount is the lower part in this picture.

Dobsonian fitted with reflector telescope in the picture above.

 

 

Reflecting telescope Optical Tube Assembly (OTA) only in picture  above.

 

The Dobsonian telescope was invented by a man called John Dobson. For more details have a look here https://en.wikipedia.org/wiki/Dobsonian_telescope