Physics questions

difference between astronomical telescope and galilean telescope

Comparison table :
 
 

              Astronomical telescope    Galilean telescope
1:In an astronomical telescope the eye piece is a convex lens.1:In Galilean telescope the eye piece is concave lens.
2:It forms an inverted image.2:It forms an erect image.
3:The length  of astronomical telescope is:
L =f0   + fe
       3:The length of Galilean telescope is:
L =f0  –  fe

 

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