X rotation angle
Y rotation angle
Z rotation angle
Reference planes
Julian date JD UTC
Date & time UTC
Date & time at Giza
Sidereal day length
True anomaly
Axial tilt
Ecliptic-Sun equator
Ecliptic-Invariable plane
Longitude of ascending node
Argument of periapsis
Layer Manager

Online introduction

This website was designed so that it could be downloaded and run directly from your computer without having to access on the internet. This was done so that, once downloaded, you could always get access to the details contained on its pages and also to free up the resources of the on line site.

There are however certain pages which need to be on line, such as the support page, registration page and contact page, and these on line pages can be found in this section. The page you are currently looking at will be available to view if you have downloaded the website onto your computer, but the rest of the pages in this section are only accessible using an internet connection.

If you are using a downloaded version of this website and then access any of these on line pages, remember to manually go back to the downloaded version of the site once you have finished on the on line pages.

Last edited: 28th July 2019
Last code/graphics edit: 29th March 2021