Question

what is difference between Newtonian and cassegrain telescope​

Answer 1

The difference between Newtonian and Cassegrain telescope is that in Newtonian telescope, a diagonal mirror reflects lights. On the other hand, in a  Cassegrain telescope a secondary mirror reflects light.

• Both, Newtonian and Cassegrain telescope​s, are a kind of reflecting telescopes.
• When comparing the structure, a Newtonian telescope uses a diagonal mirror for reflecting light.
• A Cassegrain telescope has a secondary mirror which reflects light back to the primary mirror.

• Newtonian telescopes are faster whereas Cassegrain telescope are slower telescopes.

• Newtonian telescopes are a little cheaper as compared to Cassegrain telescope of the same size.
• Another difference between  Newtonian and Cassegrain telescope​ is that a Newtonian telescope has a larger telescope tube whereas a Cassegrain telescope has a shorter telescope tube.
• A Newtonian telescope is best for widefield visual observations whereas a Cassegrain telescope is best for planetary observations.

To learn more about Newtonian and Cassegrain telescopes,

Newtonian telescopes are made using a concave mirror, a plane mirror and a lens.

True

False​

https://brainly.in/question/38423404

A Cassegrain telescope uses two mirrors as shown in Fig. Such a telescope is built with the mirrors 2omm apart. If the radius of curvature of the large mirror is 220 mm and the small mirror is 140 mm, where will the final image of an object at infinity be?

https://brainly.in/question/6252716

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