Abstract
Bright stars viewed with the naked eye and photographs of bright lights against a dard background exhibit radial lines. This is shown to be due in photographs to Fraunhofer diffraction occurring at the iris diaphragm in the camera lens. Similar lines appear when stars are photographed with reflecting telescopes In the case of the eye the lines are mainly due to imperfections in the ocular media. This article originated from a reader's enquiry.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have