where yi is the semi-aperture of the telescope and is equal to ym in Eq. (3.184). This is the lateral spherical aberration (image diameter) at the Gaussian focus. The disk of least confusion is therefore


The angular form is usually more convenient. For the Gaussian and best focus, the angular aberration (image diameter) is from (2.101) and (3.184):

Was this article helpful?

0 0
Telescopes Mastery

Telescopes Mastery

Through this ebook, you are going to learn what you will need to know all about the telescopes that can provide a fun and rewarding hobby for you and your family!

Get My Free Ebook

Post a comment