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    Default What advantage does a reflecting telescope have over a refracting telescope?



    What advantage does a reflecting telescope have over a refracting telescope?

  2. #2
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    The lens in a refracting telescope exhibits dispersion and absorption. A mirror has neither,

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    the advantage is the compactness of a reflecting the light back and forth between mirrors instead of refracting it inside a long tube. The clarity is better in refracting scopes but any good ones are too huge to carry around

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    One advantage is that you do not get distorted colors from a reflector the way you do from a less-than-expensive refractor - no purple rings around bright stars, for example.































    A second advantage is that you can buy a larger aperture reflector than you can a refractor for the same money.































    A third advantage is that you can grind the mirror of a reflector yourself and make your own telescope if you wish. It is impossible to grind decent refractor lenses unless you have special, expensive equipment.

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    One advantage of a reflecting telescope is that it is much less expensive. A top of the line 4" reflector runs around$700, a top of the line 4" refractor runs several thousand dollars.

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    A brief summation of the above answers - larger mirror, more light gathering than refracting - bigger for less money - mirror supported so can be bigger - able to self grind -































    I had a 100 dollar 60 mm refractor I used for many years, no color distortion ever.































    Except for the curvature of the earth, the 200 inch at Palomar can see a candle on the sidewalks of London.

 

 

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