Simple camera calibration using stars

A Live Script that shows how to perform a simple camera calibration using an image of stars.

This Live Script decrypts arcane camera specifications to estimate the focal length and fields of view and shows how to measure these quantities using an image of stars. It may interest students and teachers of physics and astronomy and serve as a fun "hands-on" exercise in astrophotography. 'Try this' suggestions, 'Challenges,' and references are included for further exploration. Related scripts by the author are found in Ref [1]. This script was inspired in part by a blog entry.[2]