Abstract

In an 1860 memoir, Kummer (1810–1893) discusses analytically the consequences of light rays’ quadrature in a spherically symmetrical medium. This fertile approach is illustrated here by showing its graphical translation using the Young–Kattawar diagram (1998). A detailed classification of occuring phenomena is derived for the case of vision through a steep inversion layer: e.g. hillingar and hafgerdingar effects, multiple horizons. These considerations help discussing the corrections which are essential for an accurate astronomical navigation, including horizon’s depression.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.